CN2414924Y - Blackboard eraser - Google Patents
Blackboard eraser Download PDFInfo
- Publication number
- CN2414924Y CN2414924Y CN 99258221 CN99258221U CN2414924Y CN 2414924 Y CN2414924 Y CN 2414924Y CN 99258221 CN99258221 CN 99258221 CN 99258221 U CN99258221 U CN 99258221U CN 2414924 Y CN2414924 Y CN 2414924Y
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- utility
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- cylinder
- cylindrical shape
- blackboard eraser
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Abstract
The utility model relates to a novel blackboard eraser, which belongs to the technical field of the group of cleaning devices of blackboards or stone boards of the subclass of articles for writing or drawing; auxiliary articles for writing or drawing of the class of office supplies; writing or drawing devices under the subsection of printing in the section of performing operations and transporting according to the International Patent Classification (IPC). The utility model has the number of B43L21/00 and is composed of a friction cylinder, a control box, a button, a blackboard, a bottom groove, erasing hair, a telescopic cylinder, a telescopic body, a rotating shaft and a blackboard edge. The utility model is characterized in that the cylinder-shaped friction cylinder is arranged on the cylinder-shaped rotating shaft by adopting an assembly method. The utility model is the novel blackboard eraser with practical value.
Description
The utility model relates to a kind of novel blackboard eraser.(IPC) belongs to operation Department of Transportation by International Patent Classification (IPC), and printing branch is write or drawing appliance, and 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.Be numbered, B43L 21/00
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 novel blackboard eraser, also once designed many outstanding technical schemes.As declaring of the Decree of Patent Office of China on the 25th July in 1996 by Cai Shangzhe, Granted publication number is CN2267953Y, China Patent No. (ZL) is: No. 96215793.7 utility model title is the utility model patent of " blackboard eraser rub body device ", 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 problem of blackboard eraser rub body device effectively.But still have some deficits, it also is difficult to solve when erasing the board, the cost manpower, and chalk dust is disorderly flown, the people is as sucking the disadvantageous problem of health.
The purpose of this utility model is to provide a kind of novel blackboard eraser.When erasing the board with solution, the cost manpower, and chalk dust is disorderly flown, the people is as sucking the disadvantageous problem of health.
The purpose of this utility model is achieved in that a kind of novel blackboard eraser of this utility model.Mainly constitute by friction cylinder, control box, button, blackboard, kerve, snag, telescoping cylinder, extrusome, rotating shaft, blackboard edge.Its major part friction cylinder is a cylindrical shape, makes material with plastics, through the machined manufacturing.Its telescoping cylinder, extrusome are cylindrical shapes, make material with steel, through the machined manufacturing.The control box of its rectangular shape adopts assemble method to be installed on the kerve of groove shape, form the combining structure of a nested shape, the friction cylinder of its cylindrical shape adopts assemble method to be installed in the rotating shaft of cylindrical shape, form the combining structure of a cylindrical shape, the rotating shaft of its cylindrical shape adopts assemble method to be installed on the extrusome of cylindrical shape, form the combining structure of a rectangular shaped, the extrusome of its cylindrical shape adopts assemble method to be installed on the telescoping cylinder of cylindrical shape, form the combining structure of a stairstepping, its extrusome is used to change friction cylinder by transferring to, thereby makes this novel satisfied requirement that erases the board.So just realized the purpose of this utility model.
The utility model has been compared three advantages and improvement with the original blackboard or the cleaning device technology of slabstone;
The first, because the utility model has designed friction cylinder in technical scheme, so solved the problem that snag erases the board;
The second, because the utility model designed telescoping cylinder in technical scheme, so solved extrusome forward and the problem of the power that retreats;
The 3rd, because the utility model designed extrusome in technical scheme, promote friction cylinder forward or the problem that retreats so solved.Thereby just can more effectively solve when erasing the board, the cost manpower, and chalk dust is disorderly flown, the people is as sucking the disadvantageous problem of health.
Accompanying drawing provides structural representation of the present utility model:
Fig. 1 is the main TV structure schematic diagram of a kind of novel blackboard eraser of the utility model;
Fig. 2 is the partial structurtes schematic diagram of the friction cartridge of a kind of novel blackboard eraser of the utility model;
The numbering of parts explanation in the schematic diagram: 1 friction cylinder, 2 control boxes, 3 buttons, 4 blackboards, 5 kerves, 6 snags, 7 telescoping cylinders, 8 extrusomes, 9 rotating shafts, 10 blackboard edge
Below in conjunction with accompanying drawing, the utility model is described further:
As shown in the figure, a kind of novel blackboard eraser of the utility model.Mainly constitute by friction cylinder 1, control box 2, button 3, blackboard 4, kerve 5, snag 6, telescoping cylinder 7, extrusome 8, rotating shaft 9, blackboard edge 10.Its major part friction cylinder 1 is a cylindrical shape, makes material with plastics, through the machined manufacturing.Its telescoping cylinder 7, extrusome 8 are cylindrical shapes, and 3 usefulness steel are made material, through the machined manufacturing.The control box 2 of its rectangular shape adopts assemble method to be installed on the kerve 5 of groove shape, form the combining structure of a nested shape, the friction cylinder 1 of its cylindrical shape adopts assemble method to be installed in the rotating shaft 9 of cylindrical shape, form the combining structure of a cylindrical shape, the rotating shaft 9 of its cylindrical shape adopts assemble method to be installed on the extrusome 8 of cylindrical shape, form the combining structure of a rectangular shaped, the extrusome 8 of its cylindrical shape adopts assemble method to be installed on the telescoping cylinder 7 of cylindrical shape, form the combining structure of a stairstepping, its extrusome 8 is used for friction cylinder 1 by transferring to, thereby makes this novel satisfied requirement that erases the board.So just realized the purpose of this utility model, thereby just can solve when erasing the board, the cost manpower, and chalk dust is disorderly flown, the people is as sucking the disadvantageous problem of health.
Below by embodiment, the utility model is done more detailed description:
Embodiment 1, in force, if press on the control box 2 button 3 then, telescoping cylinder 7 adopts pressure technologies to promote extrusomes 8 and travels forward, thereby drives rotating shaft 9 and friction cylinder 1 also travels forward, snag is just started working, thereby finishes the work that erases the board.
Realize that preferred plan of the present utility model is is material with plastics, steel, utilize the basic equipment of machined factory, take assembling to produce by batch, the demand with supply educational circles so just can realize practical value of the present utility model and economic worth better.
Claims (3)
1. novel blackboard eraser, it is to be made of friction cylinder (1), control box (2), button (3), blackboard (4), kerve (5), snag (6), telescoping cylinder (7), extrusome (8), rotating shaft (9), blackboard edge (10), the control box of its rectangular shape (2) is installed on the kerve (5) of groove shape, it is characterized in that the friction cylinder (1) of its cylindrical shape is installed in the rotating shaft (9) of cylindrical shape.
2. a kind of novel blackboard eraser according to claim 1 is characterized in that the rotating shaft (9) of its cylindrical shape is installed on the extrusome (8) of cylindrical shape.
3. a kind of novel blackboard eraser according to claim 1 is characterized in that the extrusome (8) of its cylindrical shape is installed on the telescoping cylinder (7) of cylindrical shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99258221 CN2414924Y (en) | 1999-12-30 | 1999-12-30 | Blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99258221 CN2414924Y (en) | 1999-12-30 | 1999-12-30 | Blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2414924Y true CN2414924Y (en) | 2001-01-17 |
Family
ID=34040905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99258221 Expired - Fee Related CN2414924Y (en) | 1999-12-30 | 1999-12-30 | Blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2414924Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107310304A (en) * | 2017-07-11 | 2017-11-03 | 四川交通职业技术学院 | Auto-erasing formula teaching white board |
-
1999
- 1999-12-30 CN CN 99258221 patent/CN2414924Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107310304A (en) * | 2017-07-11 | 2017-11-03 | 四川交通职业技术学院 | Auto-erasing formula teaching white board |
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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 |