CN2551479Y - Dust-proof blackboard eraser - Google Patents
Dust-proof blackboard eraser Download PDFInfo
- Publication number
- CN2551479Y CN2551479Y CN 02211920 CN02211920U CN2551479Y CN 2551479 Y CN2551479 Y CN 2551479Y CN 02211920 CN02211920 CN 02211920 CN 02211920 U CN02211920 U CN 02211920U CN 2551479 Y CN2551479 Y CN 2551479Y
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- CN
- China
- Prior art keywords
- utility
- dust
- model
- chalk
- baffle 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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- Drawing Aids And Blackboards (AREA)
Abstract
The utility model relates to a dust free blackboard eraser, and belongs to the technical field of the cleaning device of the blackboard or the stone plate, the writing supplies or the drawing supplies, the writing supplies or the drawing auxiliary supplies sub subclass, the writing appliance or the drawing appliance or the office appliance class, the printing subpart, and the operation and the transportation part according to the division of the international patent classification (IPC). The utility model aims at solving the problem that chalk dust can not be sucked when a blackboard is cleaned, and the utility model mainly comprises a chalk eraser body, an upper baffle plate, an axle, a roller, hairs, a hair felt and a lower baffle plate. The utility model is characterized in that the upper baffle plate and the lower baffle plate are connected and installed on the chalk eraser body through screws, the hairs are adhered and installed on the surface layer of the roller, and the hair felt is adhered and installed on the upper surface of the chalk eraser body. The utility model has the optimal mode for realizing the proposal that the plastic is performed as material, basic equipment in a plastic factory is used, the bulk production is adopted to satisfy the demands of the teaching field, therefore the use value and the economic value of the multifunctional stationery is realized.
Description
(1) technical field:
The utility model relates to dust-free black board eraser, belongs to operation Department of Transportation, printing branch by International Patent Classification (IPC) (IPC) classification, write or drawing appliance, the big class of office appliance is write or drawing article, the assistant product group of writing or draw, the cleaning device technical group field of blackboard or slabstone.
At present, the technology about the cleaning device of blackboard or slabstone existing and that once had was all done very fruitful effort to the demand of dust-free black board eraser, also once designed many outstanding technical schemes.As being declared by Xu Jiangming of the Decree of Patent Office of China in 1996, Granted publication number is CN2221502Y, and China Patent No. (ZL) is: No. 95201652.4 utility model title is the utility model patent of " control of dust blackboard eraser ", the technical scheme that is adopted.Cleaning device technical elements at blackboard or slabstone is a routine of great value invention, and it has solved the technical problem that blackboard eraser can control of dust effectively.But still have some deficits, it also is difficult to solve the technical problem that can inhale chalk dust when erasing the board.
The purpose of this utility model is to provide a kind of dust-free black board eraser.Can inhale the technical problem of chalk dust when erasing the board with solution.
The technical scheme that the technical problems to be solved in the utility model adopted is achieved in that this utility model dust-free black board eraser.Mainly constitute by chalk rub body, overhead gage, axle, roller, palm fiber, felt, lower baffle plate.Its major part palm fiber, felt are by selecting for use on the market.Its chalk rub body is a rectangular shape, makes material with plastics, through the hot forming processing and manufacturing.Its overhead gage, lower baffle plate are rectangular shape, make material with plastics, through the hot forming processing and manufacturing.Its roller is a cylindrical shape, makes material with plastics, through the hot forming processing and manufacturing.
In shape, textural, the total essential features of dust-free black board eraser of the present utility model and immediate prior art is: roller axle connects and is installed between overhead gage and the lower baffle plate, the shaft coupling structure of formation cylindrical shape, and function has been a roller action.In shape, textural, the dust-free black board eraser of the present utility model technical characterictic different with immediate prior art is: overhead gage and lower baffle plate screw attachment are installed on the chalk rub body, constitute the screw attachment structure of rectangular shape, and function has been a baffle effect.The palm fiber bonding is installed in position, roller top layer, constitutes the adhesive structure of cylindrical shape, and function has been the palm fiber effect.Felt is pasted the upper surface position that is installed in the chalk rub body, constitutes the sticking structure of rectangular shape, and function has been the effect of erasing the board.So just realized separating of dust-free black board eraser of the present utility model can be inhaled chalk dust when erasing the board technical problem purpose.
The beneficial effect of the dust-free black board eraser of utility model is that to be the solution technical scheme that technical problem adopted that can inhale chalk dust when erasing the board compared three place's advantage and improvement with existing with the technology about the cleaning device of blackboard or slabstone that once had to the utility model:
The first, owing to designed overhead gage and lower baffle plate in the technical scheme of dust-free black board eraser of the present utility model, so easier solution can be blocked the technical problem of chalk dust.
The second, owing to designed palm fiber in the technical scheme of dust-free black board eraser of the present utility model, easier solution sucks the technical problem of chalk dust.
The 3rd, owing to designed felt in the technical scheme of dust-free black board eraser of the present utility model, so the technical problem of chalk dust is wiped in easier solution.
(4) description of drawings:
Accompanying drawing provides the structural representation of dust-free black board eraser of the present utility model:
Fig. 1: the general structure schematic diagram that is dust-free black board eraser of the present utility model:
Fig. 2: the plan structure schematic diagram that is dust-free black board eraser of the present utility model:
The label declaration of parts in the schematic diagram: 34 rollers of 1 chalk rub body, 2 overhead gages, 5 palm fibers, 6 felts, 7 lower baffle plates
(5) specific embodiment:
Below in conjunction with accompanying drawing, be that the optimal way that realization solves the technical scheme that the technical problem can inhale chalk dust when erasing the board takes is described further to dust-free black board eraser of the present utility model:
Its static structure: see also Fig. 1: as shown in the figure, dust-free black board eraser of the present utility model mainly is made of chalk rub body 1, overhead gage 2, axle 3, roller 4, palm fiber 5, felt 6, lower baffle plate 7.Its major part palm fiber 5, felt 6 are by selecting for use on the market.Its chalk rub body 1 is a rectangular shape, makes material with plastics, through the hot forming processing and manufacturing.Its overhead gage 2, lower baffle plate 7 are rectangular shape, make material with plastics, through the hot forming processing and manufacturing.Its roller 4 is cylindrical shapes, makes material with plastics, through the hot forming processing and manufacturing.
In shape, textural, the total essential features of dust-free black board eraser of the present utility model and immediate prior art is: 4 of rollers connect and are installed between overhead gage 2 and the lower baffle plate 7, constitute the shaft coupling structure of cylindrical shape, function has been a roller action.In shape, textural, the dust-free black board eraser of the present utility model technical characterictic different with immediate prior art is: overhead gage and lower baffle plate screw attachment are installed on the chalk rub body, constitute the screw attachment structure of rectangular shape, and function has been a baffle effect.The palm fiber bonding is installed in position, roller top layer, constitutes the adhesive structure of cylindrical shape, and function has been the palm fiber effect.Felt is pasted the upper surface position that is installed in the chalk rub body, constitutes the sticking structure of rectangular shape, and function has been the effect of erasing the board.
Its dynamic structure: in the optimal way of implementing, in use, if wipe letter written with chalk on the blackboard, can hand powder blackboard eraser body 1, remove to wipe letter written with chalk with felt 6, chalk dust is by palm fiber 5 stick on top simultaneously, and roller 4 turning handle chalk dusts are brought the inside of powder blackboard eraser body 1 into, chalk dust falls in the blackboard eraser 1, thereby reduces aerial chalk dust in a large number.
Its dynamic structure: in the optimal way of implementing, in use, if the chalk dust of powder blackboard eraser body 1 inside is too many or palm fiber 5 on chalk dust too many, influence is used, can pour out the chalk dust in the powder blackboard eraser body 1, the chalk dust on the palm fiber 5 is washed, can reuse.The purpose that can inhale chalk dust when so just having realized the erasing the board of dust-free black board eraser of the present utility model.
Realize that preferred plan of the present utility model is is material with plastics, utilize the basic equipment of plastic products factory, take hot forming to produce in batch,, so just can realize the practical value and the economic worth of dust-free black board eraser of the present utility model better with the demand on supply teaching circle.
Claims (3)
1. dust-free black board eraser, it is to be made of chalk rub body (1), overhead gage (2), axle (3), roller (4), palm fiber (5), felt (6), lower baffle plate (7), in the total essential features of shape, textural the utility model and immediate prior art is that roller (4) axle connects and is installed between overhead gage (2) and the lower baffle plate (7), the utility model is different from it is characterized in that of immediate prior art in shape, textural: overhead gage (2) and lower baffle plate (7) screw attachment are installed on the chalk rub body (1).
2. dust-free black board eraser according to claim 1 is characterized in that palm fiber (5) bonding is installed in roller (4) position, top layer.
3. dust-free black board eraser according to claim 1 is characterized in that felt (6) stickup is installed in the upper surface position of chalk rub body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02211920 CN2551479Y (en) | 2002-05-23 | 2002-05-23 | Dust-proof blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02211920 CN2551479Y (en) | 2002-05-23 | 2002-05-23 | Dust-proof blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2551479Y true CN2551479Y (en) | 2003-05-21 |
Family
ID=33691697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02211920 Expired - Fee Related CN2551479Y (en) | 2002-05-23 | 2002-05-23 | Dust-proof blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2551479Y (en) |
-
2002
- 2002-05-23 CN CN 02211920 patent/CN2551479Y/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 |