CN201313463Y - Blackboard brush capable of soaking a little chalk dust - Google Patents
Blackboard brush capable of soaking a little chalk dust Download PDFInfo
- Publication number
- CN201313463Y CN201313463Y CNU2008201388762U CN200820138876U CN201313463Y CN 201313463 Y CN201313463 Y CN 201313463Y CN U2008201388762 U CNU2008201388762 U CN U2008201388762U CN 200820138876 U CN200820138876 U CN 200820138876U CN 201313463 Y CN201313463 Y CN 201313463Y
- Authority
- CN
- China
- Prior art keywords
- strip
- felt
- blackboard brush
- blackboard eraser
- chalk dust
- 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 model relates to a blackboard brush capable of soaking a little chalk dust. The felt of the blackboard brush consists of a plurality of strip felts (1) which are arranged on a blackboard brush body (7) in parallel gaps. The working face (3) of the strip felts is very narrow, and protrudes high (5) from the blackboard brush body (7). When the blackboard brush moves left and right, the chalk dust accumulated on the working face (3) of the strip felts drops down into the gaps on the two sides along with the left and right movement of the strip felts (1) and is taken out from a dust collecting hole (8) by a dust collecting device (6), thus keeping the working surface (3) of the strip felts of the blackboard brush in a state of a little accumulated chalk dust and greatly improving the brushing effect of the dust-collection blackboard brush.
Description
Technical field
The utility model relates to a kind of blackboard eraser, particularly relates to the felt of ash-collecting blackboard eraser.
Background technology
Present ash-collecting blackboard eraser, adopt the felt of several strips to be installed in parallel on the body of blackboard eraser, the section configuration of its strip felt is that width dimensions is greater than height dimension, and felt working face broad, when being in when working for the first time, felt working face chalk dust is less, wiping effect is better, but after reciprocal wiping repeatedly, chalk dust will be cumulative at the felt working face, will residually there be trickle chalk dust on the blackboard surface of wiping and blackboard is thickened, extreme difference on result of use.
Content of the present utility model
, the working face that overcomes ash-collecting blackboard eraser makes the deficiency of wiping effect extreme difference for piling up chalk dust, the utility model provides a kind of blackboard eraser, the strip felt working face of this blackboard eraser is very narrow, and the felt working face is very high from the blackboard eraser body, when the blackboard eraser side-to-side movement, the chalk dust that is deposited in the felt working face will drop to the gap on both sides along with swinging of felt, and take away by dust exhaust apparatus through suction port, make the felt working face of blackboard eraser be in the few state of accumulation chalk dust at any time, thereby the wiping effect of ash-collecting blackboard eraser is much improved.
The technical scheme that its technical problem that solves the utility model adopts is: this blackboard eraser is made up of strip felt, blackboard eraser body and dust exhaust apparatus, and the strip felt is fixed on the blackboard eraser body, and dust exhaust apparatus is installed in the blackboard eraser body.The top of described strip felt is the wiping working face, and its width is 0.2mm to 4mm, and the height of strip felt is 2mm to 10mm, and strip felt height dimension is 2 to 20 times of face width size, and the felt bottom is fixed on the body of blackboard eraser.Operation principle is such: because this blackboard eraser felt shape is narrow and high flat strip shaped, again because the pliable and tough characteristic of felt, when blackboard eraser in when work, be bonded at chalk dust on the felt working face and drop to gap about felt along with swinging of blackboard eraser strip felt, siphon away chalk dust by dust exhaust apparatus then, at any time keep clean around making felt, and the face width of every felt is very narrow, have only few chalk dust to be attached on the working face, be stained with chalk dust purpose seldom with regard to the working face that has reached blackboard eraser like this.
The beneficial effects of the utility model are: wiping blackboard later is more clear cleaner.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a blackboard eraser cross-sectional end view of the present utility model.
Fig. 2 is a blackboard eraser working face front view of the present utility model.
The view of Fig. 3 when to be the utility model move right when work.
View when Fig. 4 is the utility model when from work to left movement.
In the drawings, 1. strip felt, 2. felt bottom, 3. felt working face, 4. felt face width, 5. strip felt height, 6. dust exhaust apparatus, 7. blackboard eraser body, 8. suction port, 9. chalk dust.
The specific embodiment
In Fig. 1, Fig. 2, bottom (2) secured in parallel of many strip felts (1) is on blackboard eraser body (7), and on the body between the every felt (7), have suction port (8), dust exhaust apparatus (6) is installed in body (7), in order to reach optimum efficiency, the width (4) of felt working face (3) can be selected 3mm, and the height of strip felt (5) can be selected 8mm.
The course of work is such, in Fig. 3 when blackboard eraser body (7) when moving right the strip felt will topple over left, be bonded at chalk dust (9) on the felt working face (3) and following to the left side and drop to the gap, and take away chalk dust (9) through suction port (8) by dust exhaust apparatus (6).In like manner, in Fig. 4 when blackboard eraser body (7) during to left movement the strip felt will topple over to the right, the chalk dust that splits away off is taken away by dust exhaust apparatus equally, again because the width (4) of strip felt working face has only 3mm, just going up not at the working face (3) of strip felt can residual unnecessary chalk dust (9), in the process of blackboard eraser side-to-side movement, the working face of blackboard eraser is in the chalk dust state seldom of being stained with all the time like this.
Claims (3)
1. a blackboard eraser includes strip felt, blackboard eraser body and dust exhaust apparatus, it is characterized in that: strip felt height dimension is 2 to 20 times of face width size.
2. blackboard eraser according to claim 1 is characterized in that: strip felt height is 2mm to 10mm.
3. blackboard eraser according to claim 1 is characterized in that: strip felt face width is 0.2mm to 4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201388762U CN201313463Y (en) | 2008-10-10 | 2008-10-10 | Blackboard brush capable of soaking a little chalk dust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201388762U CN201313463Y (en) | 2008-10-10 | 2008-10-10 | Blackboard brush capable of soaking a little chalk dust |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201313463Y true CN201313463Y (en) | 2009-09-23 |
Family
ID=41125251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201388762U Expired - Fee Related CN201313463Y (en) | 2008-10-10 | 2008-10-10 | Blackboard brush capable of soaking a little chalk dust |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201313463Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105346314A (en) * | 2015-11-19 | 2016-02-24 | 四川省华蓥市第一中学 | Dustproof blackboard eraser |
| CN107471875A (en) * | 2017-07-22 | 2017-12-15 | 安徽华艾堂医疗科技有限公司 | A kind of chalkboard eraser |
-
2008
- 2008-10-10 CN CNU2008201388762U patent/CN201313463Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105346314A (en) * | 2015-11-19 | 2016-02-24 | 四川省华蓥市第一中学 | Dustproof blackboard eraser |
| CN107471875A (en) * | 2017-07-22 | 2017-12-15 | 安徽华艾堂医疗科技有限公司 | A kind of chalkboard eraser |
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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: 20090923 Termination date: 20101010 |