CN2543722Y - Dust free blackboard eraser - Google Patents
Dust free blackboard eraser Download PDFInfo
- Publication number
- CN2543722Y CN2543722Y CN 02236603 CN02236603U CN2543722Y CN 2543722 Y CN2543722 Y CN 2543722Y CN 02236603 CN02236603 CN 02236603 CN 02236603 U CN02236603 U CN 02236603U CN 2543722 Y CN2543722 Y CN 2543722Y
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- CN
- China
- Prior art keywords
- dust
- warehouse
- holder
- brush body
- mentioned
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- 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 free blackboard eraser, in particular to a blackboard eraser which can collect the dust, mainly consisting of a holding element and a brush body. The utility model is characterized in that the brush body is arranged inside the holding element; a cavity which can move upwards and downwards is arranged between the holding element and the brush body; a compressing spring is arranged between the cavity and the holding element; and a glue strip is arranged on the periphery of the cavity. The cavity automatically adjusts through the compressing spring, so that the glue strip is remained to be contacted with the blackboard, and the dust produced is automatically contained inside the cavity, thereby effectively preventing the dust from flying, and avoiding the dust pollution. The utility model has the advantages of simple structure, easy use and convenient for cleaning.
Description
Technical field
The utility model belongs to the blackboard eraser field, particularly a kind of blackboard eraser of collecting dust.
Background technology
The use amount of blackboard eraser is very big, now used generally speaking wiping blackboard structure is simpler, mainly form by a panel, fixedly felt or body brush on the panel, owing to there are not safeguard procedures, cause a large amount of dust from flying during use, teachers and students' health is caused very big harm, simultaneously also contaminated environment.
For adapting to this situation, the novel blackboard eraser of dust has now also appearred collecting, as notification number is the utility model patent of CN2257768, dust-free black board eraser, mainly form by filter bag, wind wheel, motor and felt, wind wheel has an annular air draught road to communicate with filter bag by driven by motor around wind wheel, can absorb the dust that produces in the process of erasing the board effectively.But the blackboard eraser of this kind structure since use direct current or alternating current as power, noise is big in the use, cost is high, uses loaded down with trivial detailsly, very difficultly applies in practice.
Summary of the invention
The purpose of this utility model is to provide a kind of new no-dust blackboard eraser that prevents flour dust overflow.
The utility model is achieved in that
Dust-free black board eraser mainly is made up of holder and brush body, is a cavity in the holder, it is characterized in that: this brush body is installed in the cavity of holder; Also be provided with a warehouse movable up and down between above-mentioned holder and brush body, be provided with the compression spring between this warehouse and the holder, warehouse is a hollow housing, is provided with adhesive tape in the periphery, top of warehouse; Above-mentioned brush body is positioned at warehouse.
After the utility model adopts said structure, owing to increase and adorned a warehouse that is exclusively used in the splendid attire dust, the warehouse periphery is provided with adhesive tape, simultaneously warehouse is adjusted automatically by the compression spring, make adhesive tape keep with blackboard between contact, the dust of generation is wrapped in the warehouse automatically, prevented flying upward of dust effectively, avoid the pollution of dust, had effect simple in structure, practical, easy to use, cleaning.Using method is the same with former ordinary blackboard eraser, and cost is low, is applicable to the school of various conditions.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model, and Fig. 2 is an overall structure schematic diagram of the present utility model.
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated.
The specific embodiment
In the accompanying drawing, 1 be holder, 2 for brush body, 3 for warehouse, 4 for the compression spring, 5 for adhesive tape, 6 for fixed head, 7 for track strip, 8 for groove, 9 for column, 10 for shrinkage pool, 11 for barrier rib, 12 for holding plate, 13 for conical bore.
As shown in drawings, the utility model is a kind of novel dust-free black board eraser, mainly is made up of holder 1, warehouse 3 and brush body 2.Be a cavity in the holder 1, also be provided with a circle fixed head 6 in this cavity, fixed head 6 is formed an exocoel with the outer wall of holder 1.Also be provided with two convenient special-purpose holding plates 12 that grip in the bottom of holder 1,, be provided with reinforcement between this holding plate 12 and the holder 1 for increasing fastness.Above-mentioned warehouse 3 is a hollow housing, and this warehouse 3 is positioned at the exocoel of holder 1.Be respectively equipped with a column 9 on four angles in above-mentioned exocoel, be set with a compression spring 4 on each column 9; Also be respectively equipped with corresponding shrinkage pool 10 on four angles of warehouse 3 correspondences, above-mentioned compression spring 4 and column 9 may contract in the shrinkage pool 10; Be provided with six vertical track strips 7 on the lateral surface of fixed head 6, be provided with groove 8 correspondingly in the inboard of warehouse 3, track strip 7 is positioned at this groove 8, thereby makes that warehouse 3 can be up and down along track strip 7.Be provided with sealing in the periphery, top of warehouse 3 with adhesive tape 5, during use adhesive tape 5 keep with blackboard between contact, make warehouse 3 form a gas-tight silo.Above-mentioned brush body 2 mainly is made up of panel and supporting walls, respectively is provided with corresponding bayonet unit in the outside of supporting walls and the inboard of said fixing plate 6, is used for brush body 2 is installed on holder 1, and this brush body 2 also is positioned at above-mentioned warehouse 3 simultaneously.Also be provided with the barrier rib 11 that extends internally in the bottom of above-mentioned warehouse 3, after brush body 2 was installed on the holder 1, the outer eaves of above-mentioned panel was used to stop this barrier rib 11, stoped warehouse 3 to come off, and did not influence the up and down of warehouse 3.
Above-mentioned brush body 2 can adopt two kinds of forms, and a kind of is that the special-purpose felt of brushing directly is installed on brush body 2; Another kind is to set up a plurality of regularly arranged holes on the panel of brush body 2, and this hole is designed to big, following young conical bore 13 suitable for reading.Can directly bristle be installed on the brush body 2 by conical bore 13.
During installation, suit compression spring 4 on the column 9 of holder 1 is at first put into the exocoel of holder 1 to warehouse 3 along the track strip 7 of fixed head 6 again, compresses this moment in the shrinkage pool 10 that spring 4 just in time stretches into warehouse 3.Mounted brush body 2 is snapped in the holder 1, this moment, brush body 2 just in time was positioned at warehouse 3 again.At last in the periphery of warehouse 3 sticking dress adhesive tape 5.
During use, compression spring 4 is upspring warehouse 3, and warehouse 3 is up and down in holder 1 along track strip 7.The height of warehouse 3 is parallel with the height of bristle, and adhesive tape 5 is a little more than the height of bristle.When erasing the board, the adhesive tape 5 on the warehouse 3 is the contact blackboard earlier, under the effect of compression spring 4, warehouse 3 shrinks, and bristle and adhesive tape 5 all are attached on the blackboard, makes warehouse 3 form a gas-tight silo, dust under being wiped by bristle just is collected in the warehouse 3 by adhesive tape 5, avoided dust excessive, fly upward.
Claims (9)
1, dust-free black board eraser mainly is made up of holder (1) and brush body (2), and holder is a cavity in (1), it is characterized in that: this brush body (2) is installed in the cavity of holder (1); Between above-mentioned holder (1) and brush body (2), also be provided with a warehouse movable up and down (3), be provided with compression spring (4) between this warehouse (3) and the holder (1), warehouse (3) is a hollow housing, is provided with adhesive tape (5) in the periphery, top of warehouse (3); Above-mentioned brush body (2) is positioned at warehouse (3).
2, dust-free black board eraser according to claim 1 is characterized in that: also be provided with a circle fixed head (6) in the cavity of holder (1), fixed head (6) is formed an exocoel with the outer wall of holder (1), and above-mentioned warehouse (3) is positioned at this exocoel.
3, dust-free black board eraser according to claim 1 and 2 is characterized in that: be provided with vertical rail bar (7) on the lateral surface of fixed head (6), be provided with groove (8) correspondingly in the inboard of warehouse (3).
4, dust-free black board eraser according to claim 3 is characterized in that: establish a column (9) respectively on four angles of holder (1) exocoel, above-mentioned compression spring (4) is positioned on this column (9); Also be respectively equipped with corresponding shrinkage pool (10) on four angles of warehouse (3), above-mentioned compression spring (4) and column (9) may contract in the shrinkage pool (10).
5, dust-free black board eraser according to claim 4 is characterized in that: above-mentioned brush body (2) mainly is made up of panel and supporting walls, and the inboard of the outside of supporting walls and said fixing plate (6) respectively is provided with corresponding bayonet unit.
6, dust-free black board eraser according to claim 5 is characterized in that: be provided with barrier rib (11) in the bottom of warehouse (3), the outer eaves of above-mentioned panel stops this barrier rib (11).
7, dust-free black board eraser according to claim 6 is characterized in that: be provided with special-purpose holding plate (12) in the bottom of holder (1), be provided with reinforcement between this holding plate (12) and the holder (1).
8, dust-free black board eraser according to claim 7 is characterized in that: above-mentioned brush body (2) is provided with the special-purpose felt of brushing.
9, dust-free black board eraser according to claim 7 is characterized in that: also be provided with the hole that is used for fixing bristle on the panel of brush body (2), this hole is big, a following young conical bore (13) suitable for reading.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02236603 CN2543722Y (en) | 2002-05-28 | 2002-05-28 | Dust free blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02236603 CN2543722Y (en) | 2002-05-28 | 2002-05-28 | Dust free blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2543722Y true CN2543722Y (en) | 2003-04-09 |
Family
ID=33710834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02236603 Expired - Fee Related CN2543722Y (en) | 2002-05-28 | 2002-05-28 | Dust free blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2543722Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108045136A (en) * | 2018-01-10 | 2018-05-18 | 西安航空学院 | A kind of novel blackboard eraser |
| CN108725048A (en) * | 2018-05-30 | 2018-11-02 | 戴上 | A kind of writing on the blackboard processing teaching aid |
-
2002
- 2002-05-28 CN CN 02236603 patent/CN2543722Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108045136A (en) * | 2018-01-10 | 2018-05-18 | 西安航空学院 | A kind of novel blackboard eraser |
| CN108725048A (en) * | 2018-05-30 | 2018-11-02 | 戴上 | A kind of writing on the blackboard processing teaching aid |
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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 |