CN2404716Y - Chock-dust absorbing wiper for blackboard - Google Patents
Chock-dust absorbing wiper for blackboard Download PDFInfo
- Publication number
- CN2404716Y CN2404716Y CN 99241250 CN99241250U CN2404716Y CN 2404716 Y CN2404716 Y CN 2404716Y CN 99241250 CN99241250 CN 99241250 CN 99241250 U CN99241250 U CN 99241250U CN 2404716 Y CN2404716 Y CN 2404716Y
- Authority
- CN
- China
- Prior art keywords
- brush
- dust
- housing
- utility
- model
- 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 dust absorbing brush for a blackboard. The utility model comprises housings, a brush head, a brush holder, an accumulator 1 which is arranged in the housing of the brush head, a rectifying transformer 2, and a DC motor 4 which is arranged in the housing of the brush holder and is supported by a bracket. The utility model is characterized in that the brush head is a scrubbing brush 5 which uses bristles, and the circumference of the brush head is provided with a baffle edge 6 which is made of fiber floss felt. The center of the scrubbing brush and the inner side of the baffle edge 6 which is made of fiber floss felt are provided with a plurality of dust absorbing holes 7, and the dust absorbing holes 7 are communicated with a dust absorbing cavity in the housing of the brush head. The inner part of the brush holder is provided with a screw impeller 3 which is connected with a rotating shaft of a motor, and both sides of the screw impeller are respectively provided with an air outlet window 8. The inner side of the air outlet window is provided with a dust baffling net 9. The back end of the brush holder is provided with a cover 10 of a dust outlet door. The utility model has the advantages of simple structure and convenient operation; the utility model is favorable for ensuring teachers' and students' body health, and can be used as a brush for clothes, bed mats, furniture, etc.
Description
The utility model relates to dust-absorbing blackboard brush.
Dust from flying behind the general blackboard brush erasing blackboard of the prior art influences the healthy of teachers and students.Though there has been the blackboard brush of dust suction, there is the brushing difficulty, dust suction deficiency not to the utmost.
Purpose of the present utility model is to provide a kind of brushing convenience, the clean dust-absorbing blackboard brush of dust suction.
Above-mentioned purpose of the present utility model is to realize by such technical scheme, and promptly a kind of dust-absorbing blackboard brush comprises housing, brush, brush holder and is positioned at battery, the rectifier transformer of brush housing and is positioned at the direct current generator of brush handle shell by stent support; It is characterized in that: brush adopts the bristles scrub-brush, has fiber carpet rib around it, and the inboard of the centre of hairbrush and fiber carpet rib has some air suction openings that are communicated with vacuum chamber in the brush housing; Have the screw impeller that is connected with machine shaft in brush holder, the both sides of impeller have air outlet window, and the window inboard has the dust-break net; In the rear end of brush holder, has the door closure of dust.
Said structure of the present utility model can further specify by accompanying drawing.
Of the present utility model have a following accompanying drawing:
Accompanying drawing 1 is structure master's cutaway view of the present utility model;
Accompanying drawing 2 is the A-A cutaway view of accompanying drawing 1;
Accompanying drawing 2 is a right view of the present utility model.
Referring to accompanying drawing: dust-absorbing blackboard brush among the figure comprises housing, brush, brush holder and is positioned at battery 1, the rectifier transformer 2 of brush housing and is positioned at brush handle shell, by the direct current generator 4 of stent support; It is characterized in that: brush adopts bristles scrub-brush 5, has fiber carpet rib 6 around it, and the inboard of the centre of hairbrush and fiber carpet rib has some air suction openings 7 that are communicated with vacuum chamber in the brush housing; Have the screw impeller 3 that is connected with machine shaft in brush holder, the both sides of impeller have air outlet window 8, and the window inboard has dust-break net 9; In the rear end of brush holder, has the door closure 10 of dust.
An embodiment of the present utility model is: battery is a charging battery, and charging circuit is positioned at housing, and the top of brush housing has a foldable attaching plug.
Another embodiment of the present utility model is: the air outlet window of impeller 3 is the louvered air outlet window.
Operation principle of the present utility model is such: when using dust-absorbing blackboard brush, at first turn on the power switch, wheel rotation, at this moment, the dust that hairbrush is brushed enters vacuum chamber by air suction opening under taking out of impeller drawn, because stopping of dust-break net makes dust fall into the chamber inner bottom part, open door closure 10, just can pour out dust.
The utility model is because the effect of dust-break limit and dust-break net can make dust not escape.Simple in structure, easy to use, help guaranteeing that teachers and students' is healthy.The brushing tool that also can be used as clothing, bedding and furniture etc.
Claims (3)
1. dust-absorbing blackboard brush comprises housing, brush, brush holder and is positioned at battery (1), the rectifier transformer (2) of brush housing and is positioned at brush handle shell, by the direct current generator (4) of stent support; It is characterized in that: brush adopts bristles scrub-brushes (5), has fiber carpet rib (6) around it, and the inboard of the centre of hairbrush and fiber carpet rib has some air suction openings (7) that are communicated with vacuum chamber in the brush housing; Have the screw impeller 3 that is connected with machine shaft in brush holder, the both sides of impeller have air outlet window (8), and the window inboard has dust-break net (9); In the rear end of brush holder, has the door closure (10) of dust.
2. dust-absorbing blackboard brush according to claim 1 is characterized in that: battery is a charging battery, and charging circuit is positioned at housing, and the top of brush housing has a foldable attaching plug.
3. dust-absorbing blackboard brush according to claim 1 is characterized in that: the air outlet window of impeller (3) is the louvered air outlet window.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99241250 CN2404716Y (en) | 1999-09-28 | 1999-09-28 | Chock-dust absorbing wiper for blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99241250 CN2404716Y (en) | 1999-09-28 | 1999-09-28 | Chock-dust absorbing wiper for blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2404716Y true CN2404716Y (en) | 2000-11-08 |
Family
ID=34028148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99241250 Expired - Fee Related CN2404716Y (en) | 1999-09-28 | 1999-09-28 | Chock-dust absorbing wiper for blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2404716Y (en) |
-
1999
- 1999-09-28 CN CN 99241250 patent/CN2404716Y/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 | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |