CN2137606Y - Dust-collecting eraser of blackboard - Google Patents
Dust-collecting eraser of blackboard Download PDFInfo
- Publication number
- CN2137606Y CN2137606Y CN 92219270 CN92219270U CN2137606Y CN 2137606 Y CN2137606 Y CN 2137606Y CN 92219270 CN92219270 CN 92219270 CN 92219270 U CN92219270 U CN 92219270U CN 2137606 Y CN2137606 Y CN 2137606Y
- Authority
- CN
- China
- Prior art keywords
- dust
- wiping
- erasing
- blackboard
- roller
- 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
Links
Abstract
The utility model relates to a dust sucking eraser of a blackboard, which is composed of a casing, a cover, erasing rollers, a supporting bracket, a roller shaft, erasing strips and a dust collecting box. The dust sucking eraser of a blackboard, which is considered as an erasing component, is composed of the two erasing rollers and the two erasing strips. Powder dust erased by the erasing rollers and the erasing strips falls off along gaps between the erasing rollers and the erasing strips and enters the dust collecting box. When the powder dust in the dust collecting box is accumulated to certain quantity, a dust discharging cover of the dust collecting box is opened for discharging the powder dust. When the dust sucking eraser of a blackboard of the utility model is used, the powder dust is reduced when the blackboard is erased, which is helpful to the physical and mental health of students and teachers.
Description
The utility model relates to blackboard eraser, relates in particular to dust-sucking eraser.
The blackboard eraser of prior art, no matter be to adopt bristle brush form or felt scopiform formula, all can dust from flying when erasing the board, contaminated environment influences teachers and students' physical and mental health.
The purpose of this utility model is, overcomes the deficiencies in the prior art part, and a kind of employing rolling dust absorbing structure is provided, and reduces the dust-sucking eraser of flying dust.
Dust-sucking eraser described in the utility model is made four parts with the wiping board face branch of blackboard eraser.Intermediate vertical arranges two row's felt rugs or similar cleaning piece makes to wipe bar.Width of reservation is 2 to 5 millimeters slit in the middle of this two rows felt rug.The outside at described two row's felt rugs separates under the condition in 2 to 5 millimeters slits, and a wiping roller free to rotate respectively is set.End at described wiping bar and wiping roller promptly at an end of dust-sucking eraser described in the utility model, is provided with a dust collection box.The opening subtend of dust collection box is wiped bar and is wiped roller, and dust collection box is provided with the lid of falling dirt.
Use dust-sucking eraser described in the utility model, two bar shaped polishing pieces and two rolling polishing piece blackboard wipings are arranged, if especially when erasing the board, adopt the inclination form, make two of wiping in the roller be inside rolling form, it is motionless that another wipes roller, and like this, dust will interiorly effectively be received.Dust agglutination preferably can be played between the wiping bar and the slit between wiping bar and wiping roller.The dust of income falls naturally, falls in the dust collection box.The income dust can be opened the lid of falling dirt of dust collection box to some, and dust is outwelled.Dust-sucking eraser described in the utility model, pick-up performance is obvious, and is economical and practical.
Accompanying drawing is the schematic diagram that meets dust-sucking eraser theme described in the utility model.
Fig. 1 is the structural representation of dust-sucking eraser described in the utility model.
Fig. 2 is a dust-sucking eraser side-looking structural representation described in the utility model.
1～housing, 2～guard shield 3～wiping roller 4～bearing support
5～roll shaft 6～wiping bar 7～dust collection box
Referring now to accompanying drawing 1 and accompanying drawing 2, be described as follows in conjunction with the embodiments:
Dust-sucking eraser described in the utility model, the handgrip part of housing (1) is made the boss shape, is suitable for hand-held being advisable.Housing (1) is the main component of dust-sucking eraser described in the utility model., divide and make four parts as board wiper plane in a side of housing (1) and boss symmetry, two middle parts are wiped bar (6) and can be made with the similar material of felt rug or suitable blackboard wiping for wiping bar (6).The slit of establishing 2 to 5 mm wides in the centre of two wiping bars (6).Two both sides of wiping bars (6), respectively be set up in parallel one and wipe roller (3), wiping and establishing width between bar (6) and the wiping roller (3) is 2 to 5 millimeters slit.The length of wiping bar (6) and wiping roller (3) is slightly less than the main part of housing (1).Wipe roller (3) and be two and be placed in free rolling member on the bearing support (4) with roll shaft (5).Wiping roller (3) adopts roll shaft core external application Wiping material to make.During use, dust-sucking eraser described in the utility model can be lain in wiping on the blackboard preferably adopts two of wiping in the rollers (3) to roll on blackboard, and another is unsettled, when wiping back, roll on the blackboard of the wiping roller (3) that last time is unsettled, the wiping roller (3) that rolled on blackboard last time is then unsettled, so that make by wiping bar (6) and wiping roller (3) dust under being wiped to fall naturally along the slit, enters in the dust collection box (7).For preventing to occur flying dust when roller (3) rolls wiping, around the polishing piece of dust-sucking eraser, be provided with guard shield (2).
Claims (3)
1, a kind of dust-sucking eraser, include housing (1), guard shield (2), wiping roller (3), bearing support (4), roller bearing (5), wipe bar (6) and dust collection box (7) composition, with housing (1) is main component, wiping roller (3) and wiping bar (6) are separately positioned on the housing (1), it is characterized in that being provided with two wiping bars (6) two centres of wiping rollers (3).
2, dust-sucking eraser according to claim 1, it is characterized in that described wiping bar (6) and wipe roller (3) each mutually compartment be provided with 2 to 5 millimeters slit.
3, dust-sucking eraser according to claim 1 is characterized in that being provided with dust collection box (7) at an end of described dust-sucking eraser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92219270 CN2137606Y (en) | 1992-07-04 | 1992-07-04 | Dust-collecting eraser of blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92219270 CN2137606Y (en) | 1992-07-04 | 1992-07-04 | Dust-collecting eraser of blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2137606Y true CN2137606Y (en) | 1993-07-07 |
Family
ID=33766541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92219270 Expired - Fee Related CN2137606Y (en) | 1992-07-04 | 1992-07-04 | Dust-collecting eraser of blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2137606Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100577444C (en) * | 2008-06-13 | 2010-01-06 | 深圳职业技术学院 | Multi-brush type blackboard eraser apparatus |
| CN111361334A (en) * | 2020-03-31 | 2020-07-03 | 吕梁学院 | Teaching is with blackboard device that can deash |
-
1992
- 1992-07-04 CN CN 92219270 patent/CN2137606Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100577444C (en) * | 2008-06-13 | 2010-01-06 | 深圳职业技术学院 | Multi-brush type blackboard eraser apparatus |
| CN111361334A (en) * | 2020-03-31 | 2020-07-03 | 吕梁学院 | Teaching is with blackboard device that can deash |
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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 |