CN201552927U - Blackboard eraser - Google Patents
Blackboard eraser Download PDFInfo
- Publication number
- CN201552927U CN201552927U CN2009202490885U CN200920249088U CN201552927U CN 201552927 U CN201552927 U CN 201552927U CN 2009202490885 U CN2009202490885 U CN 2009202490885U CN 200920249088 U CN200920249088 U CN 200920249088U CN 201552927 U CN201552927 U CN 201552927U
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- CN
- China
- Prior art keywords
- blackboard eraser
- blackboard
- sponge
- eraser
- 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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Abstract
A blackboard eraser relates to an improvement of a blackboard eraser structure. The utility model provides a blackboard eraser with simple structure, environment protection, energy conservation and convenient use. The blackboard eraser comprises a board eraser. The structure has the key points that parallel guiding rails are arranged on two ends of a blackboard, sliding blocks are arranged on two end of the board eraser, the sliding blocks are placed on the parallel guiding rails, and sponge is arranged inside the board eraser.
Description
Technical field:
The utility model relates to a kind of improvement of wiping blackboard structure.
Background technology:
At present, the blackboard eraser that teaching is used mostly is the disappear wooden blackboard eraser of dirt function of a kind of nothing, during literal on wiping blackboard, the chalk bits are along with air-flow flies upward, and both contaminated environment was detrimental to health again, particularly for the teacher of the work of being engaged in teaching for a long time, accumulate over a long period, chalk dust can deposit at respiratory system, causes occupational disease.The patent No. is that 02113410.3 patent has been announced a kind of negative-pressure black board eraser, by the effect of axial flow blower, dust is taken away from the SS on the blackboard eraser, but this negative-pressure black board eraser complex structure, power consumption is big.
The utility model content:
The utility model is exactly at the problems referred to above, and a kind of simple in structure, environmental protection, blackboard eraser energy-conservation, easy to use are provided.
In order to realize above-mentioned purpose of the present utility model, the utility model adopts following technical scheme, and the utility model comprises blackboard eraser, its structural feature is provided with closed slide for the blackboard two ends, the blackboard eraser two ends are provided with pulley, and pulley is placed on the closed slide, and the blackboard eraser inboard is provided with sponge.
The beneficial effects of the utility model:
1, simple in structure
The utility model comprises blackboard eraser, and the blackboard two ends are provided with closed slide, and the blackboard eraser two ends are provided with pulley, and pulley is placed on the closed slide, and the blackboard eraser inboard is provided with sponge, and is simple in structure, is easy to promote.
2, easy to use
When erasing the board, hand is pinned the blackboard eraser that is provided with wet sponge and horizontally slipped, and pins the blackboard eraser that is provided with dried sponge then and horizontally slips, and after wiping finishes sponge is pulled down and cleans, and after cleaning up, installs and can reuse, and is very easy to use.
3, environmental protection
The utility model is provided with wet sponge, and the high adsorption capacity of wet sponge can be adsorbed onto chalk dust the surface of wet sponge, can not cause chalk to disperse everywhere, has protected environment effectively.
4, energy-conservation
The utility model horizontally slips by staff promotion blackboard eraser and carries out blackboard wiping, need not drive by electric energy, has saved the energy.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
1 is sponge among Fig. 1, and 2 is blackboard eraser, and 3 is closed slide, and 4 is pulley.
The specific embodiment:
The utility model comprises blackboard eraser 2, and the blackboard two ends are provided with closed slide 3, and blackboard eraser 2 two ends are provided with pulley 4, and pulley 4 is placed on the closed slide 3, and blackboard eraser 2 inboards are provided with sponge 1.
Two 1 one in sponges are wet sponge 1, and another piece is dried sponge 1; Wet sponge 1 is for the abundant wiped clean of the letter written with chalk on the blackboard, but blackboard can be wetter after the wiping, can't write at once, because sponge 1 water imbibition is strong, dried sponge 1 can be dried blackboard very soon.
Water on the wet sponge 1 is too much unsuitable; As the saturation degree of water above sponge 1, can in sponge 1, flow out, pollute the closed slide 3 of blackboard bottom.
Sponge 1 can be dismantled.
Sponge 1 contacts fully with blackboard; Otherwise can't be with the blackboard wiped clean.
The width of blackboard eraser 2 is 5～10cm; The too wide or too narrow hand effort that all can make.
The width of sponge 1 is identical with the width of blackboard eraser 2.
Blackboard eraser 2 is made for wood materials.
Below in conjunction with a description of drawings course of action of the present utility model:
Hand is pinned the blackboard eraser 2 that is provided with wet sponge 1 and is horizontally slipped, and pins the blackboard eraser 2 that is provided with dried sponge 1 then and horizontally slips; After wiping finishes sponge 1 pulled down and clean, after cleaning up, install and to reuse.
Be with being appreciated that, more than about specific descriptions of the present utility model, only be used to the utility model is described and be not to be subject to the described technical scheme of the utility model embodiment, those of ordinary skill in the art is to be understood that, still can make amendment or be equal to replacement the utility model, to reach identical technique effect; Use needs as long as satisfy, all within protection domain of the present utility model.
Claims (3)
1. a blackboard eraser comprises blackboard eraser (2), and the blackboard two ends are provided with closed slide (3), and blackboard eraser (2) two ends are provided with pulley (4), and pulley (4) is placed on the closed slide (3), and blackboard eraser (2) inboard is provided with sponge (1).
2. a kind of blackboard eraser according to claim 1 is characterized in that one is wet sponge (1) in two sponges (1), and another piece is dried sponge (1).
3. a kind of blackboard eraser according to claim 1, the width that it is characterized in that blackboard eraser (2) is 5～10cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202490885U CN201552927U (en) | 2009-12-01 | 2009-12-01 | Blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202490885U CN201552927U (en) | 2009-12-01 | 2009-12-01 | Blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201552927U true CN201552927U (en) | 2010-08-18 |
Family
ID=42612603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202490885U Expired - Fee Related CN201552927U (en) | 2009-12-01 | 2009-12-01 | Blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201552927U (en) |
-
2009
- 2009-12-01 CN CN2009202490885U patent/CN201552927U/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: 20100818 Termination date: 20101201 |