CN201362113Y - Blackboard chalk dust collection device - Google Patents
Blackboard chalk dust collection device Download PDFInfo
- Publication number
- CN201362113Y CN201362113Y CNU2009200674901U CN200920067490U CN201362113Y CN 201362113 Y CN201362113 Y CN 201362113Y CN U2009200674901 U CNU2009200674901 U CN U2009200674901U CN 200920067490 U CN200920067490 U CN 200920067490U CN 201362113 Y CN201362113 Y CN 201362113Y
- Authority
- CN
- China
- Prior art keywords
- chalk
- chalk dust
- blackboard
- dust box
- ledge
- 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 relates to a blackboard chalk dust collection device, which comprises a chalk rail, a chalk dust box below the chalk rail, and a rotary handle on the chalk rail, wherein the chalk rail serves as a cover of the chalk dust box. The blackboard chalk dust collection device has simple structure and convenient use, and can collect chalk dust on the chalk rail only by a user gently rotating the handle on the chalk rail, thereby preventing the chalk dust from dispersing in the air and polluting the environment to do harm to the health of teachers and students. In addition, the chalk dust in the chalk dust box can be cleaned at any time or after the chalk dust box is full.
Description
Technical field
The utility model relates to a kind of blackboard chalk dust gathering-device.
Background technology
At present, all kinds of schools of China, particularly each middle and primary schools in teaching process, all also are to use this traditional writing on the blackboard instrument of chalk mostly during teacher's writing on the blackboard.Teacher's writing on the blackboard for convenience generally all is provided with an outstanding ledge for chalk on blackboard in the bottom of blackboard, place chalk and blackboard eraser.But in the long-term use of blackboard, can accumulate a thick layer of chalk dust on the ledge for chalk on blackboard, as long as someone is through blackboard or when blowing, these chalk dusts will wave with the wind, after the chalk dust that flies upward is everywhere sucked by student and teacher, the long-term accumulation meeting to they health and healthyly produce serious harm! Therefore, need timely the chalk dust in the ledge for chalk on blackboard is cleared up every day! General cleaning all is to use blackboard eraser or wet rag to handle, but when using the blackboard eraser cleaning, still keeps away unavoidable chalk dust and fly upward everywhere, and uses when wetting rag, and the wet rag of cleaning has become a great problem again.
The utility model content
Technical problem to be solved in the utility model provides a kind of blackboard chalk dust gathering-device, can clear up chalk dust and free from environmental pollution at any time fast, easily.
In order to achieve the above object, the utility model is realized by the following technical solutions:
A kind of blackboard chalk dust gathering-device comprises ledge for chalk on blackboard, is provided with a chalk dust box in the ledge for chalk on blackboard bottom, and ledge for chalk on blackboard is the lid of chalk dust box, and is provided with a rotatable handle on ledge for chalk on blackboard.
But in described chalk dust box, be provided with the baffle plate of a move left and right.
One or both ends at described chalk dust box are provided with dodge gate.
Promote the baffle plate in the chalk dust box, chalk dust can be concentrated and be pushed into chalk dust box one or both ends, open dodge gate and concentrate cleaning.
Chalk dust gathering-device of the present utility model, simple in structure, easy to use, need only the handle that rotates gently on the ledge for chalk on blackboard after having a class every day, chalk dust on the ledge for chalk on blackboard is all fallen in the chalk dust box, so just having prevented that chalk dust is skyborne flies upward everywhere, can not pollute surrounding environment and influences academics and students's health.Chalk dust in the chalk dust box, can clear up at any time also can wait accumulation to expire after cleaning again.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the utility model.Should be understood that these embodiment only to be used to the utility model is described and be not used in the restriction scope of the present utility model.Should be understood that in addition those skilled in the art can make various changes or modifications the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
When blackboard in long-term use, will accumulate thick chalk dust on the ledge for chalk on blackboard of its underpart, whenever blowing or to have the people to walk out-of-date, these chalk dusts will fly away everywhere, influence surrounding environment.The utility model improves the ledge for chalk on blackboard below the above-mentioned blackboard, its structural representation as shown in Figure 1, this chalk dust gathering-device comprises ledge for chalk on blackboard 1, chalk dust box 2, handle 3, baffle plate 4 and dodge gate 5.Wherein on ledge for chalk on blackboard 1, be provided with a rotatable handle 3, as long as turning handle 3, ledge for chalk on blackboard 1 is slowly rotated, just the chalk dust in the groove can be poured into fully in the following chalk dust box 2, turning handle 3 sets back ledge for chalk on blackboard 1, this ledge for chalk on blackboard 1 becomes the lid of chalk dust box 2 again just, when blowing or have the people to pass by blackboard, just dust has been waved everywhere like this! For the chalk dust in the chalk dust box 2, can promote the sideboard 4 of setting in it, make chalk dust box 2 interior chalk dusts focus on dodge gate 5 places of chalk dust box 2 one or both ends.So just can promote baffle plate 4 on one side, with refuse bag at dodge gate 5 places catch chalk dust box on one side, easily swept chalk dust, but also free from environmental pollution.
Claims (3)
1. a blackboard chalk dust gathering-device comprises ledge for chalk on blackboard, it is characterized in that: be provided with a chalk dust box in the ledge for chalk on blackboard bottom, ledge for chalk on blackboard is the lid of chalk dust box, and is provided with a rotatable handle on ledge for chalk on blackboard.
2. blackboard chalk dust gathering-device according to claim 1 is characterized in that: but in described chalk dust box, be provided with the baffle plate of a move left and right.
3. blackboard chalk dust gathering-device according to claim 2, it is characterized in that: the one or both ends at described chalk dust box are provided with dodge gate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200674901U CN201362113Y (en) | 2009-02-04 | 2009-02-04 | Blackboard chalk dust collection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200674901U CN201362113Y (en) | 2009-02-04 | 2009-02-04 | Blackboard chalk dust collection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201362113Y true CN201362113Y (en) | 2009-12-16 |
Family
ID=41472773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200674901U Expired - Fee Related CN201362113Y (en) | 2009-02-04 | 2009-02-04 | Blackboard chalk dust collection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201362113Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107570514A (en) * | 2017-09-07 | 2018-01-12 | 张曦曦 | A kind of chalk dust retracting device |
| CN107839379A (en) * | 2017-10-12 | 2018-03-27 | 李建云 | The practical small blackboard of one kind teaching |
-
2009
- 2009-02-04 CN CNU2009200674901U patent/CN201362113Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107570514A (en) * | 2017-09-07 | 2018-01-12 | 张曦曦 | A kind of chalk dust retracting device |
| CN107839379A (en) * | 2017-10-12 | 2018-03-27 | 李建云 | The practical small blackboard of one kind teaching |
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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: 20091216 Termination date: 20110204 |