CN204382998U - With the blackboard eraser of generating laser - Google Patents
With the blackboard eraser of generating laser Download PDFInfo
- Publication number
- CN204382998U CN204382998U CN201420776766.4U CN201420776766U CN204382998U CN 204382998 U CN204382998 U CN 204382998U CN 201420776766 U CN201420776766 U CN 201420776766U CN 204382998 U CN204382998 U CN 204382998U
- Authority
- CN
- China
- Prior art keywords
- handheld division
- generating laser
- blackboard eraser
- switch
- utility
- 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 kind of blackboard eraser with generating laser, belong to the cleaning device field of blackboard or slabstone.The utility model comprises Handheld Division and bristle, the side of described Handheld Division is provided with switch, inside, Handheld Division is provided with cavity, opening is formed in the side of Handheld Division, lid covers on the opening of Handheld Division by screw, be provided with generating laser, battery case and wire in described cavity, the emitting head of described generating laser passes the sidewall of blackboard eraser Handheld Division, and switch, generating laser and battery are linked to be closed-loop path by wire.The utility model simplicity of design, easy to use, be with a wide range of applications.
Description
Technical field
The utility model relates to the cleaning device field of blackboard or slabstone, specifically a kind of blackboard eraser with generating laser.
Background technology
Chalk, teacher's pointer, blackboard eraser are the three kinds of instruments the most frequently used on classroom of teacher, but hold this three kinds of things simultaneously, and inconvenient, only hold wherein two kinds, but when needing the third, just need to take to dais in general hand, pretty troublesome.Here, blackboard eraser and chalk are again absolute obligato things, and the room for improvement of chalk is very limited, if therefore can improve blackboard eraser, make it the function realizing traditional teacher's pointer, just can facilitate having given lessons of teacher.
Summary of the invention
The utility model is exactly a kind of blackboard eraser with generating laser proposed to solve the single technical problem of current blackboard eraser purposes.
The present invention realizes according to following technical scheme.
A kind of blackboard eraser with generating laser, comprise Handheld Division and bristle, the side of described Handheld Division is provided with switch, inside, Handheld Division is provided with cavity, form opening in the side of Handheld Division, lid covers on the opening of Handheld Division by screw, is provided with generating laser, battery case and wire in described cavity, the emitting head of described generating laser passes the sidewall of blackboard eraser Handheld Division, and switch, generating laser and battery are linked to be closed-loop path by wire.
Present invention obtains following beneficial effect.
The utility model of such design solves the single problem of current blackboard eraser purposes.Use the utility model teachers no longer to need to hold teacher's pointer separately, only need to hold blackboard eraser and chalk, just normally can carry out teaching; Tradition teacher's pointer is heavier, and teacher has grown easy hand acid service time, and easily becomes the instrument of teacher's physical punishment on students, does not meet the education ideas in the present age; No matter teacher stands in which position, classroom, when needing to tell about content on blackboard or lantern slide with student, can refer to immediately in the past, not need to come into, convenient teaching.
Accompanying drawing explanation
Fig. 1 is the profile of the utility model Handheld Division;
Fig. 2 is electrical schematic diagram of the present utility model.
Wherein: 1. Handheld Division; 2. cavity;
3. battery case; 4. generating laser;
5. wire; 6. switch.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further elaborated.
As shown in Figure 1-2, a kind of blackboard eraser with generating laser, comprise Handheld Division 1 and bristle, the side of described Handheld Division 1 is provided with switch 6, and inside, Handheld Division 1 is provided with cavity 2, forms opening in the side of Handheld Division 1, lid covers on the opening of Handheld Division 1 by screw, be provided with generating laser 4, battery case 3 and wire 5 in described cavity 2, the emitting head of described generating laser 4 passes the sidewall of blackboard eraser Handheld Division 1, and switch 6, generating laser 4 and battery 3 are linked to be closed-loop path by wire 5.
More than 1 piece button cell is placed in described battery case.
Before using, first back out screw uncap, put into button cell, cover lid is twisted screw and is fixed afterwards, can use after completing.Use as blackboard eraser at ordinary times, serve as a teacher word on needing to point at the blackboard when telling about with student, only need to press switch, circuit will be connected, generating laser there is electric current pass through, generating laser will send red beam, and the hot spot of built-in for blackboard eraser generating laser as control flashlight, can be pointed to target location by teacher; If tell about complete, only again need press switch, can disconnect, generating laser is no longer luminous.Compared with traditional teacher's pointer, the present invention points to distance, and easily laborsaving, is the assistant that well imparts knowledge to students.
Claims (2)
1. the blackboard eraser with generating laser, comprise Handheld Division (1) and bristle, it is characterized in that: the side of described Handheld Division (1) is provided with switch (6), Handheld Division (1) inside is provided with cavity (2), opening is formed in the side of Handheld Division (1), lid covers on the opening of Handheld Division (1) by screw, generating laser (4) is provided with in described cavity (2), battery case (3) and wire (5), the emitting head of described generating laser (4) passes the sidewall of blackboard eraser Handheld Division (1), switch (6), generating laser (4) and battery (3) are linked to be closed-loop path by wire (5).
2. the blackboard eraser of band Laser emission according to claim 1, is characterized in that: place more than 1 piece button cell in described battery case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420776766.4U CN204382998U (en) | 2014-12-11 | 2014-12-11 | With the blackboard eraser of generating laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420776766.4U CN204382998U (en) | 2014-12-11 | 2014-12-11 | With the blackboard eraser of generating laser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204382998U true CN204382998U (en) | 2015-06-10 |
Family
ID=53355747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420776766.4U Expired - Fee Related CN204382998U (en) | 2014-12-11 | 2014-12-11 | With the blackboard eraser of generating laser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204382998U (en) |
-
2014
- 2014-12-11 CN CN201420776766.4U patent/CN204382998U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150610 Termination date: 20151211 |
|
| EXPY | Termination of patent right or utility model |