CN201186565Y - Blackboard eraser with dust-separation plate - Google Patents
Blackboard eraser with dust-separation plate Download PDFInfo
- Publication number
- CN201186565Y CN201186565Y CNU2008200215198U CN200820021519U CN201186565Y CN 201186565 Y CN201186565 Y CN 201186565Y CN U2008200215198 U CNU2008200215198 U CN U2008200215198U CN 200820021519 U CN200820021519 U CN 200820021519U CN 201186565 Y CN201186565 Y CN 201186565Y
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- CN
- China
- Prior art keywords
- plate
- dust
- blackboard eraser
- bristle holder
- proof plate
- 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 provides a blackboard eraser with a dustproof plate, which belongs to the technical field of teaching aids. The blackboard eraser includes a blackboard eraser holder, a brush fixing plate and a brush, wherein the brush penetrates the brush fixing plate and is fixed on the brush fixing plate; a rubber sleeve is arranged on the brush fixing plate; the brush fixing plate is fixedly connected with the blackboard eraser holder; structurally, a dustproof plate is arranged on the brush fixing plate; a convex edge is arranged on the outer edge of the brush fixing plate; a hole with shape and size the same as the brush fixing plate is formed in the central position of the dustproof plate; the dustproof plate is nested between the convex edge of the brush fixing plate and the blackboard eraser holder; and a dust adsorption layer is adhered on the bottom surface of the dustproof plate. The dustproof plate is additionally arranged on the basis of the blackboard eraser so as to effectively isolate dust, and the dust adsorption layer on the bottom surface of the dustproof plate can adsorb the dust and reduce the influence and the irritation of the escaped dust on the respiratory tract of the user. Additionally, the dustproof plate is simple and convenient in assembly, disassembly and use.
Description
Technical field
The utility model relates to the teaching aid technical field, specifically a kind of blackboard eraser that has dust-proof plate.
Background technology
Employed blackboard eraser is of all kinds really in the educational aid of present school, and the effect of blackboard eraser only is that the chalk writing on the blackboard is wiped out, make things convenient for teacher again on blackboard writing on the blackboard so that teaching.The general easy blackboard eraser of Shi Yonging, the reciprocating motion of arm in blackboard wiping, can locate to be infected with and to adhere to a lot of chalk dusts, especially hand at user's hand, wrist place, coat-sleeve etc., can occur the be full of cracks on hand surface for the more sensitive people of hand skin; In blackboard wiping, the dust that comes of kicking up also can bring stimulation to respiratory tract simultaneously, even can be unhealthful.The blackboard eraser on the market that can address this problem at present has electric dust absorption, dedusting function, its structure is comparatively complicated, include parts such as motor or blower fan mostly, these parts not only assembly and disassembly are loaded down with trivial details, and use operation inconvenience, and cleaning process is numerous and diverse, and many parts are prone to fault, the production and processing cost should not use and promote than higher.
Summary of the invention
Technical assignment of the present utility model is to solve the deficiencies in the prior art, and a kind of blackboard eraser that has dust-proof plate is provided.
The technical solution of the utility model realizes in the following manner, this has the blackboard eraser of dust-proof plate, comprise that blackboard eraser holds plate, bristle holder plate and bristle, the bristle cross-under also is fixed on the bristle holder plate, bristle holder plate is provided with rubber sleeve, bristle holder plate is held plate with blackboard eraser and is fixedlyed connected, bristle holder plate is provided with dust-proof plate, the outer rim of bristle holder plate is provided with flange, the centre of dust-proof plate has the hole identical with the bristle holder plate size shape, dust-proof plate is nested in the flange and the blackboard eraser of bristle holder plate and holds between the plate, and cementation has the dust adsorption layer on the bottom surface of dust-proof plate.
Dust-proof plate adopts the hyalomitome plastic plate.
The flange that the thickness of dust-proof plate equals bristle holder plate is held the distance of plate bottom surface to blackboard eraser.
The dust adsorption layer adopts dust absorption glass fibre.
The top edge in the hole of dust-proof plate is a curved edge.
The beneficial effect that the utility model produced is:
This blackboard eraser that has dust-proof plate adds a dust-proof plate on the basis of original blackboard eraser, dust-proof plate mainly is to stop that chalk dust overflows and stick on user's the hand and arm to the external world; Dust-proof plate is nested in the flange and the blackboard eraser of bristle holder plate and holds between the plate and can split easily and install with bristle holder plate, can arbitrarily pull down or install dust-proof plate when the use of blackboard eraser.The fastening of nested type makes the fractionation of dust-proof plate and installs also very convenient.Dust absorption glass fibre on the bottom surface of dust-proof plate can further adsorb dust, reduce dust to greatest extent and overflow to the external world, thereby minimizing is to the stimulation of user's respiratory tract.
Description of drawings
Accompanying drawing 1 is a structural representation of the present utility model;
Accompanying drawing 2 is plan structure schematic diagrames of dust-proof plate of the present utility model.
Mark in the accompanying drawing is represented respectively;
1, blackboard eraser is held plate, and 2, bristle holder plate, 3, bristle, 4, rubber sleeve, 5, dust-proof plate, 6, flange, 7, the hole, 8, the dust adsorption layer.
The specific embodiment
Do following detailed description the in detail below in conjunction with 1,2 pairs of blackboard erasers that have dust-proof plate of the present utility model of accompanying drawing.
Shown in accompanying drawing 1,2, the blackboard eraser that has dust-proof plate of the present utility model, comprise that blackboard eraser holds plate 1, bristle holder plate 2 and bristle 3, bristle 3 cross-under also are fixed on the bristle holder plate 2, bristle holder plate 2 is provided with rubber sleeve 4, bristle holder plate 2 is held plate 1 with blackboard eraser and is fixedlyed connected, and bristle holder plate 2 is provided with dust-proof plate 5, and dust-proof plate adopts the hyalomitome plastic plate.The outer rim of bristle holder plate 2 is provided with flange 6.The flange that the thickness of dust-proof plate equals bristle holder plate is held the distance of plate bottom surface to blackboard eraser.The centre of dust-proof plate 5 has the hole 7 identical with bristle holder plate 2 size shape, and the top edge in hole 7 is curved edges.Dust-proof plate 5 is nested in the flange 6 and the blackboard eraser of bristle holder plate and holds between the plate 1, and cementation has the dust adsorption layer 8 that adopts dust absorption glass fibre to be made on the bottom surface of dust-proof plate 5.
Claims (5)
1, the blackboard eraser that has dust-proof plate, comprise that blackboard eraser holds plate, bristle holder plate and bristle, the bristle cross-under also is fixed on the bristle holder plate, bristle holder plate is provided with rubber sleeve, bristle holder plate is held plate with blackboard eraser and is fixedlyed connected, it is characterized in that bristle holder plate is provided with dust-proof plate, the outer rim of bristle holder plate is provided with flange, the centre of dust-proof plate has the hole identical with the bristle holder plate size shape, dust-proof plate is nested in the flange and the blackboard eraser of bristle holder plate and holds between the plate, and cementation has the dust adsorption layer on the bottom surface of dust-proof plate.
2, the blackboard eraser that has dust-proof plate according to claim 1 is characterized in that dust-proof plate adopts the hyalomitome plastic plate.
3, the flange that the blackboard eraser that has dust-proof plate according to claim 1, the thickness that it is characterized in that dust-proof plate equal bristle holder plate is held the distance of plate bottom surface to blackboard eraser.
4, the blackboard eraser that has dust-proof plate according to claim 1 is characterized in that the dust adsorption layer adopts dust absorption glass fibre.
5, the blackboard eraser that has dust-proof plate according to claim 1, the top edge that it is characterized in that the hole of dust-proof plate is a curved edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200215198U CN201186565Y (en) | 2008-04-29 | 2008-04-29 | Blackboard eraser with dust-separation plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200215198U CN201186565Y (en) | 2008-04-29 | 2008-04-29 | Blackboard eraser with dust-separation plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201186565Y true CN201186565Y (en) | 2009-01-28 |
Family
ID=40309580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200215198U Expired - Fee Related CN201186565Y (en) | 2008-04-29 | 2008-04-29 | Blackboard eraser with dust-separation plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201186565Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103072412A (en) * | 2013-01-31 | 2013-05-01 | 冯凯 | Replaceable blackboard eraser |
| CN113500870A (en) * | 2021-07-01 | 2021-10-15 | 海南经贸职业技术学院 | Computer application teaching device |
| CN116020783A (en) * | 2022-12-23 | 2023-04-28 | 安徽天工标识标牌股份有限公司 | Intelligent signboard |
-
2008
- 2008-04-29 CN CNU2008200215198U patent/CN201186565Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103072412A (en) * | 2013-01-31 | 2013-05-01 | 冯凯 | Replaceable blackboard eraser |
| CN113500870A (en) * | 2021-07-01 | 2021-10-15 | 海南经贸职业技术学院 | Computer application teaching device |
| CN116020783A (en) * | 2022-12-23 | 2023-04-28 | 安徽天工标识标牌股份有限公司 | Intelligent signboard |
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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: 20090128 |