CN203046649U - Blackboard eraser easy to use - Google Patents
Blackboard eraser easy to use Download PDFInfo
- Publication number
- CN203046649U CN203046649U CN 201320030801 CN201320030801U CN203046649U CN 203046649 U CN203046649 U CN 203046649U CN 201320030801 CN201320030801 CN 201320030801 CN 201320030801 U CN201320030801 U CN 201320030801U CN 203046649 U CN203046649 U CN 203046649U
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- CN
- China
- Prior art keywords
- rub body
- eraser
- easy
- dust
- blackboard eraser
- 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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Abstract
The utility mode provides a blackboard eraser easy to use. The blackboard eraser structurally comprises an eraser body. Eraser hairs are arranged on a contact face of the eraser body and a blackboard, a plurality of dust absorption holes are evenly formed in the eraser body on the rear sides of the brush hairs, the dust absorption holes are communicated with a dust storage cavity arranged in the eraser body, a dust absorption mechanism is communicated with the rear side of the eraser body, and the eraser body is arranged at the front end portion of a handheld rod through the dust absorption mechanism. Compared with the prior art, the blackboard eraser easy to use has the advantages of being reasonable in design, simple in structure, convenient to use and the like, reduces dust absorption amount for teachers and students, ensures health of the teachers and the students, and has strong practicality and good popularization and use value.
Description
Technical field
The utility model relates to teacher's articles for use technical field, specifically a kind of easy-to-use type blackboard eraser simple in structure, easy to use.
Background technology
Blackboard eraser is that we are at school's a kind of educational aid commonly used, when wiping letter written with chalk with blackboard eraser, chalk dust can be bonded on the blackboard eraser, in the time will clapping the chalk dust of adhering on the blackboard eraser, chalk dust can fly upward everywhere, on teacher's the dais and lectern, a thick layer of chalk dust is often arranged, the teacher's that all may make dirty at any time clothes and the books that are placed on the lectern.And the chalk dust that flies upward everywhere sucked in the health by the student, can have a strong impact on the healthy of student.In addition, because blackboard is higher, reach the blackboard top through regular meeting during teachers and students' blackboard wiping, wiping is very inconvenient.
Summary of the invention
Technical assignment of the present utility model is to solve the deficiencies in the prior art, and a kind of easy-to-use type blackboard eraser simple in structure, easy to use is provided.
The technical solution of the utility model realizes in the following manner, this easy-to-use type blackboard eraser, its structure comprises rub body, the contact-making surface of described rub body and blackboard is provided with snag, on the rub body of snag rear side, evenly offer some air suction openings, described air suction opening is communicated with the dust-collecting cavity that is arranged on rub body inside, and described rub body rear side is communicated with dust collection mechanism, and rub body is arranged on the leading section of holding rod by dust collection mechanism.
As preferably, described holding rod is telescopic holding rod.
As preferably, described dust collection mechanism is arranged in the control box, is provided with the blade, the drive motors that are connected with rub body by dust-absorbing tube in this control box, also is provided with the gauge tap that this drive motors of control opens and closes on the surface of control box.
The beneficial effect that the utility model compared with prior art produces is:
Characteristics such as that a kind of easy-to-use type blackboard eraser of the present utility model has is simple in structure, easy to use, be skillfully constructed, this blackboard eraser adopts the principle of dust catcher, by the motor-driven blade rotation chalk bits are adsorbed in the dust-collecting cavity, avoid chalk dust to fly upward everywhere, reduce teacher and classmate's suction Dust Capacity, guarantee that the academics and students is healthy, holding rod length is adjustable simultaneously, practical, thereby, the utlity model has excellent popularization use value.
Description of drawings
Accompanying drawing 1 is structural representation of the present utility model.
Accompanying drawing 2 is partial sectional views of the present utility model.
Mark in the accompanying drawing is represented respectively:
1, holding rod, 2, gauge tap, 3, control box, 4, rub body, 5, snag, 6, blade, 7, drive motors, 8, dust-absorbing tube, 9, dust-collecting cavity, 10, air suction opening.
The specific embodiment
Below in conjunction with accompanying drawing easy-to-use type blackboard eraser of the present utility model is done following detailed description the in detail.
As accompanying drawing 1, shown in Figure 2, this easy-to-use type blackboard eraser, its structure comprises rub body 4, described rub body 4 is provided with snag 5 with the contact-making surface of blackboard, on the rub body 4 of snag 5 rear sides, evenly offer some air suction openings 10, described air suction opening 10 is communicated with the dust-collecting cavity 9 that is arranged on rub body 4 inside, and described rub body 4 rear sides are communicated with dust collection mechanism, and rub body 4 is arranged on the leading section of holding rod 1 by dust collection mechanism.
Described holding rod 1 is telescopic holding rod.
Described dust collection mechanism is arranged in the control box 3, is provided with the blade 6, the drive motors 7 that are connected with rub body 4 by dust-absorbing tube 8 in this control box 3, also is provided with the gauge tap 2 that this drive motors 7 of control opens and closes on the surface of control box 3.
In the above-described embodiments; preferred forms of the present utility model is described; obviously; in the utility model, the execution of drive motors also needs to provide power by battery, and the battery here comprises lithium battery or other charging lead accumulators etc.; because this technology is known common technology; do not repeat them here, should illustrate in addition, any change of making under inventive concept of the present utility model all will fall in the protection domain of the present utility model.
Claims (3)
1. easy-to-use type blackboard eraser, it is characterized in that: its structure comprises rub body, the contact-making surface of described rub body and blackboard is provided with snag, on the rub body of snag rear side, evenly offer some air suction openings, described air suction opening is communicated with the dust-collecting cavity that is arranged on rub body inside, described rub body rear side is communicated with dust collection mechanism, and rub body is arranged on the leading section of holding rod by dust collection mechanism.
2. easy-to-use type blackboard eraser according to claim 1, it is characterized in that: described holding rod is telescopic holding rod.
3. easy-to-use type blackboard eraser according to claim 1, it is characterized in that: described dust collection mechanism is arranged in the control box, be provided with the blade, the drive motors that are connected with rub body by dust-absorbing tube in this control box, also be provided with the gauge tap that this drive motors of control opens and closes on the surface of control box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320030801 CN203046649U (en) | 2013-01-22 | 2013-01-22 | Blackboard eraser easy to use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320030801 CN203046649U (en) | 2013-01-22 | 2013-01-22 | Blackboard eraser easy to use |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203046649U true CN203046649U (en) | 2013-07-10 |
Family
ID=48729640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320030801 Expired - Fee Related CN203046649U (en) | 2013-01-22 | 2013-01-22 | Blackboard eraser easy to use |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203046649U (en) |
-
2013
- 2013-01-22 CN CN 201320030801 patent/CN203046649U/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: 20130710 Termination date: 20140122 |