CN2871234Y - Dust-collecting blackboard eraser - Google Patents
Dust-collecting blackboard eraser Download PDFInfo
- Publication number
- CN2871234Y CN2871234Y CN 200520088014 CN200520088014U CN2871234Y CN 2871234 Y CN2871234 Y CN 2871234Y CN 200520088014 CN200520088014 CN 200520088014 CN 200520088014 U CN200520088014 U CN 200520088014U CN 2871234 Y CN2871234 Y CN 2871234Y
- Authority
- CN
- China
- Prior art keywords
- dust
- blackboard eraser
- eraser
- proper
- erasing device
- 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 discloses a dust-collecting blackboard eraser which comprises an eraser proper and a wiping unit fixed on the eraser proper, the eraser proper is provided with flange around the wiping unit; a ring-shape dust collecting slot is arranged between the flange and the wiping unit, the height of the flange is lower than that of the wiping unit. The eraser proper is equipped with a dust storage box which is connected with the said ring-shape dust collecting slot and located under the eraser proper in use. On both sides of the eraser proper are provided with recess which is convenient for user to hold. The dust-collecting blackboard eraser has the advantages of simple structure, low cost and easy operation, the utility model can prevent dust from floating so that ensure the healthy condition of teachers and students.
Description
Technical field
The utility model relates to the teacher wipes chalk writing in the classroom instrument, relates in particular to a kind of dust absorption blackboard eraser.
Background technology
At present, each teacher of middle and primary schools employed blackboard eraser on the classroom, the blackboard eraser that great majority still are made of simple wiping board and felt.Use it when the chalk writing on the blackboard is wiped, can cause dust to fly upward everywhere, stain academics and students's article such as clothing, desk, books, have a strong impact on the environmental sanitation in classroom, bring no small harm for the physical and mental health of Faculty and Students.In order to solve above-mentioned dust problem, people attempt to design a kind of blackboard eraser of dust-collecting type, but its member too much, complex manufacturing, need to be equipped with battery, not only its use cost is high, and its pick-up performance also can't guarantee when the electric weight deficiency.Also the someone attempts blackboard eraser wiping face is designed to the felt of half wet type, with the dust of absorption chalk, but usually leaves the vestige of wet smear on the blackboard again, and is not easy its wiped clean.In addition, traditional blackboard eraser is shorter, and the teacher is often needing health is attached on the blackboard far away local time on the blackboard wiping, easier like this pollution clothes, also easier inspiration chalk dust and influence teachers ' health.
The utility model content
Technical problem to be solved in the utility model is: provide a kind of simple in structure, with low cost, can effectively stop dust from flying, guarantee the anti-dust eraser of teachers and students' health.
For solving the problems of the technologies described above, the technical solution of the utility model is: dust absorption blackboard eraser, comprise blackboard eraser body and the erasing device that is fixed in the blackboard eraser body, described blackboard eraser body is provided with and is centered around erasing device flange on every side, have annular dust collecting trough between described flange and the erasing device, the height of described flange is lower than the height of erasing device.
Have annular dust collecting trough between described flange and the erasing device, can effectively utilize the chalk dust that the absorption affinity of erasing device gets off wiping and be collected in wherein; Outwards overflow and be centered around the chalk dust that the flange around the erasing device can stop wiping to be got off effectively; So this blackboard eraser can prevent that chalk dust from flying upward everywhere, avoid chalk ash pollution clothing and classroom article, also the space of a cleaning of Faculty and Students guarantees that teachers and students' body and mind is healthy.The height of described flange is lower than the height of erasing device, can guarantee in wiping process, avoids flange and blackboard panel friction and makes a noise.
As a kind of improvement, a dust storehouse of detachable connection box on the blackboard eraser body, described dust storehouse box are connected with described annular dust collecting trough and are positioned at the downside of blackboard eraser body in use.In wiping process, enter the interior dust of dust collecting trough under the effect of gravity, fall into dust storehouse box, save bit by bit to a certain degree, dust storehouse box is pulled down, concentrate cleaning, avoid dust to cause secondary pollution.
Improve as another kind, described blackboard eraser body both sides are respectively equipped with is convenient to the pit that the user hands.It is hand-held that this pit is convenient to the user, and hand is not easy not landing in use.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the stereogram of the utility model embodiment;
Fig. 2 is the cutaway view of the utility model embodiment.
The specific embodiment
Dust absorption blackboard eraser, shown in Fig. 1 and Fig. 2 are common, comprise blackboard eraser body 1 and be fixed in the bristle 2 of blackboard eraser body 1 that described blackboard eraser body 1 is provided with the flange 12 around bristle 2, have the dust collecting trough of annular between described flange 12 and the bristle 2, the height of described flange 12 is lower than the height of erasing device.Dust storehouse box 3 and 1 clamping of blackboard eraser body.Described dust storehouse box 3 is connected with described annular dust collecting trough and is positioned at the downside of blackboard eraser body 1 in use.During use, only make dust storehouse box 3 be positioned at the downside of blackboard eraser body 1, the dust that is adsorbed in the dust collecting trough just can fall in the dust storehouse box 3.Hand-held for the ease of the user, described blackboard eraser body 1 both sides are respectively equipped with pit 11.
Described bristle 2 is preferentially selected the bristle of static electrification for use, and it not only can increase the adsorption capacity of bristle, and is convenient to the water flushing.Other is convenient to wipe the erasing device of writing the also replaceable one-tenth of bristle 2 sponge, felt etc.
Blackboard eraser body 1 usefulness plastic material is made, and hollow-core construction is adopted in the Handheld Division, with weight reduction, reduces cost.
This dust absorption blackboard eraser is simple in structure, and is with low cost, easy to use, can effectively stop dust from flying, guarantees teachers and students' health.
Claims (7)
1, dust absorption blackboard eraser, comprise blackboard eraser body (1) and be fixed in the erasing device of blackboard eraser body (1), it is characterized in that: described blackboard eraser body (1) is provided with and is centered around erasing device flange (12) on every side, have the dust collecting trough of annular between described flange (12) and the erasing device, the height of described flange (12) is lower than the height of erasing device.
2, dust absorption blackboard eraser as claimed in claim 1, it is characterized in that: it also comprise one with the detachable dust storehouse box (3) that is connected of blackboard eraser body (1), described dust storehouse box (3) is connected with described annular dust collecting trough and is positioned at the downside of blackboard eraser body (1) in use.
3, dust absorption blackboard eraser as claimed in claim 2 is characterized in that: described dust storehouse box (3) and blackboard eraser body (1) clamping.
4, as claim 1 or 2 or 3 described dust absorption blackboard erasers, it is characterized in that: described blackboard eraser body (1) both sides are respectively equipped with the pit (11) of being convenient to the user and handing.
5, dust absorption blackboard eraser as claimed in claim 4 is characterized in that: described erasing device is bristle (2).
6, dust absorption blackboard eraser as claimed in claim 5 is characterized in that: described bristle (2) is the bristle of static electrification.
7, dust absorption blackboard eraser as claimed in claim 4 is characterized in that: described erasing device is a sponge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520088014 CN2871234Y (en) | 2005-10-21 | 2005-10-21 | Dust-collecting blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520088014 CN2871234Y (en) | 2005-10-21 | 2005-10-21 | Dust-collecting blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2871234Y true CN2871234Y (en) | 2007-02-21 |
Family
ID=37739582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520088014 Expired - Fee Related CN2871234Y (en) | 2005-10-21 | 2005-10-21 | Dust-collecting blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2871234Y (en) |
-
2005
- 2005-10-21 CN CN 200520088014 patent/CN2871234Y/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 |