CN2218090Y - Blackboard eraser with dust collector - Google Patents
Blackboard eraser with dust collector Download PDFInfo
- Publication number
- CN2218090Y CN2218090Y CN 95236158 CN95236158U CN2218090Y CN 2218090 Y CN2218090 Y CN 2218090Y CN 95236158 CN95236158 CN 95236158 CN 95236158 U CN95236158 U CN 95236158U CN 2218090 Y CN2218090 Y CN 2218090Y
- Authority
- CN
- China
- Prior art keywords
- dust
- blackboard eraser
- frames
- ash disposal
- lath
- 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
Landscapes
- Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
Abstract
The utility model relates to a blackboard eraser with dust collector, which can remove the accumulated chalk dust on the blackboard eraser without causing dust nuisance. The device is the box type and is provided with two movable dust removing frames, and the frame is provided with dust removing strips supported on the same plane by a four-link mechanism. The blackboard eraser is held by hands to press the dust removing frames, and two frames do the parallel translation of the relatively opening and closing, in order to complete the dust scraping action and collect the dust in the lower box.
Description
The utility model relates to a kind of device that can remove the chalk dust that accumulates on the blackboard eraser.
After blackboard eraser uses a period of time, can't continue to use owing to accumulated more chalk dust on the felt, the way of ash disposal only at the blackboard edge to or with the method for beating, very inconvenient, main is to cause dust from flying, influences teachers and students' health.
The purpose of this utility model is exactly that a kind of device of removing the chalk dust on the blackboard eraser specially will be provided, and can prevent flying upward of chalk dust.
The purpose of this utility model is achieved like this: two ash disposal frames are arranged in a box, and each is supported on the same plane by a cover quadric chain, scrapes lath on the ash disposal frame, during use, blackboard eraser is placed on the ash disposal frame, during with subordinate the pressure, two ash disposal frames separate relatively, when hand loosened, two ash disposal frames closed up under the pulling force effect of spring, and hand one is pressed a pine, the ash disposal frame closed in one minute one, do the opposing parallel motion, the grey scraping with on the blackboard eraser felt drops in the following box.
The utility model adopts box structure, so the flying upward of dust on prevent, quadric chain can guarantee that the ash disposal frame does parallel motion, so scrape grey effectively, presses with hand, need not power set, so simple in structure, easy to use.
Structure of the present utility model is provided by following example and accompanying drawing thereof, figure one is the profile of this device, be equipped with two movable ash disposal frames (2) in shell (1), each is supported ash disposal frame (2) by a cover quadric chain (3), and by spring (4) place of drawing over to one's side at grade
Figure two is vertical views of this device, and this figure has clearly illustrated the arrangement situation of scraping lath (5) on the ash disposal frame (2).Scrape lath for laterally being arranged in parallel.
Figure three is vertical views of another example, scrapes lath and becomes circular array.
Claims (3)
1, can remove the device of chalk dust on the blackboard eraser; This device external form is box-like, it is characterized in that having in the box two ash disposal frames, and each is supported at grade by a cover quadric chain, between the two ash disposal frames tension spring is arranged.
2, device according to claim 1 is characterized in that scraping lath on the dedusting frame, scrapes lath and is laterally and is arranged in parallel.
3, device according to claim 1 is characterized in that scraping lath on the ash disposal frame, is circular array to lath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95236158 CN2218090Y (en) | 1995-01-27 | 1995-01-27 | Blackboard eraser with dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95236158 CN2218090Y (en) | 1995-01-27 | 1995-01-27 | Blackboard eraser with dust collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2218090Y true CN2218090Y (en) | 1996-01-24 |
Family
ID=33879236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95236158 Expired - Fee Related CN2218090Y (en) | 1995-01-27 | 1995-01-27 | Blackboard eraser with dust collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2218090Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105082839A (en) * | 2015-09-30 | 2015-11-25 | 乔辉 | Inverted-Y-shaped elastic dust eraser |
-
1995
- 1995-01-27 CN CN 95236158 patent/CN2218090Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105082839A (en) * | 2015-09-30 | 2015-11-25 | 乔辉 | Inverted-Y-shaped elastic dust eraser |
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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 |