CN2460325Y - Eraser - Google Patents
Eraser Download PDFInfo
- Publication number
- CN2460325Y CN2460325Y CN 01200218 CN01200218U CN2460325Y CN 2460325 Y CN2460325 Y CN 2460325Y CN 01200218 CN01200218 CN 01200218 CN 01200218 U CN01200218 U CN 01200218U CN 2460325 Y CN2460325 Y CN 2460325Y
- Authority
- CN
- China
- Prior art keywords
- utility
- model
- fixed pulley
- blackboard eraser
- blackboard
- 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
Links
- 238000004140 cleaning Methods 0.000 abstract description 5
- 210000004209 hair Anatomy 0.000 abstract description 3
- 238000007639 printing Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 238000011982 device technology Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Images
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
The utility model relates to a novel blackboard eraser which belongs to the technical field of the group of cleaning devices for blackboards or slates of the subclass of writing or drawing auxiliary articles of the class of writing or drawing apparatuses and office supplies under the subsection of printing in the section of performing operations and transporting according to the International Patent Classification (IPC). The class number of the utility model is B43L21/00, and the utility model is composed of a first fixed pulley, a second fixed pulley, a pull wire, a third fixed pulley, a supporting base, a lever, a heavy object, a blackboard, brush hairs and a board eraser. The utility model is characterized in that the pull wire is installed in the outer side position of the first fixed pulley, and the utility model is a novel blackboard eraser with practical value.
Description
The utility model relates to novel blackboard eraser.Belong to operation Department of Transportation by International Patent Classification (IPC) (IPC) division, printing branch is write or drawing appliance, the big class of office appliance, the assistant product group of writing or draw, the cleaning device technical group field of blackboard or slabstone.Classification number is B43L21/00.
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 being declared by An Liwei of the Decree of Patent Office of China in 1996, Granted publication number is CN2236955Y, and China Patent No. (ZL) is: No. 94246269.6 utility model title is the utility model patent of " dustproof chalkboard 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 chalkboard eraser dustproof problem effectively.But still have some deficits, it also is difficult to solve erase the board effort and unhealthful problem.
The purpose of this utility model is to provide a kind of novel blackboard eraser.With solution erase the board the effort and unhealthful problem.
The purpose of this utility model is achieved in that the novel blackboard eraser of this utility model.Mainly constitute by fixed pulley I, fixed pulley II, draught line, fixed pulley III, bearing, lever, weight, blackboard, bristle, blackboard eraser.Its fixed pulley I, fixed pulley are put, the fixed pulley III is by selecting for use on the market.Its draught line is an elongated shape, uses the nylon rope material, through cutting off processing and manufacturing.Its bearing is a trapezoidal shape, uses wooden material, through the planing operation manufacturing.Its lever is a writing board shape, uses wooden material, through the planing operation manufacturing.Its weight is a cylindrical shape, and cylinder iron material passes through the casting processing and manufacturing.Its blackboard eraser is a rectangular shape, uses wooden material, through the planing operation manufacturing.Draught line adopts method for winding to be installed in the outer fix of fixed pulley I, constitutes round-shaped rotational structure, and function has been the effect of transmission power.Draught line adopts the method for connecting firmly to be installed in the upper position of blackboard eraser, constitutes rectangular shape blackboard eraser structure, and function has been the effect of moving up and down.Weight adopts the method for connecting firmly to be installed in the leftward position of draught line, constitutes the cylindrical shape counter weight construction, and function has been that dynamic action is provided.Lever adopts hinge method to be installed in the upper position of bearing, constitutes the writing board shape lever construction, and function has been laborsaving effect.Bristle adopts adhering method to be installed in the inner side of blackboard eraser, constitutes hair shape erasing structure, and function has been to wipe the writing effect.So just realized the purpose of this utility model.
The utility model has been compared two advantages and improvement with the original blackboard or the cleaning device technology of slabstone;
The first, because the utility model has designed draught line in technical scheme, so can operate away from blackboard;
The second, because the utility model has designed lever in technical scheme, so can be laborsaving; Thereby erase the board effort and unhealthful problem just can have more effectively been solved.
Accompanying drawing provides structural representation of the present utility model:
Fig. 1 is the agent structure schematic diagram of novel blackboard eraser of the present utility model;
Fig. 2 is the broken section structural representation of novel blackboard eraser of the present utility model;
The numbering of parts explanation in the schematic diagram: 1 fixed pulley I, 2 fixed pulley II, 3 draught lines, 4 fixed pulley III, 5 bearings, 6 levers, 7 weights, 8 blackboards, 9 bristles, 10 blackboard erasers
In the optimum implementation of novel blackboard eraser of the present utility model, its technical scheme is achieved in that and below in conjunction with accompanying drawing the utility model is described further:
Its static structure: as shown in the figure, novel blackboard eraser of the present utility model.Mainly constitute by fixed pulley I 1, fixed pulley II 2, draught line 3, fixed pulley III 4, bearing 5, lever 6, weight 7, blackboard 8, bristle 9, blackboard eraser 10.Draught line 1 adopts method for winding to be installed in the outer fix of fixed pulley I 1, constitutes round-shaped rotational structure, and function has been the effect of transmission power.Draught line 3 adopts the method for connecting firmly to be installed in the upper position of blackboard eraser 10, constitutes rectangular shape blackboard eraser structure, and function has been the effect of moving up and down.Weight 7 adopts the method for connecting firmly to be installed in the leftward position of draught line 3, constitutes the cylindrical shape counter weight construction, and function has been that dynamic action is provided.Lever 6 adopts hinge method to be installed in the upper position of bearing 5, constitutes the writing board shape lever construction, and function has been laborsaving effect.Bristle 9 adopts adhering method to be installed in the inner side of blackboard eraser 10, constitutes hair shape erasing structure, and function has been to wipe the writing effect.
Its dynamic structure: in force:
According to lever principle, its lever 6 acts on weight 7 by bearing 5, thereby finishes the labour-saving task.Its draught line 3 acts on blackboard eraser 10 by fixed pulley I 1, thereby finishes the task of avoiding sucking chalk dust.Its blackboard eraser 10 acts on blackboard 8 by bristle 9, thereby finishes the task of wiping.So just realized the purpose of this utility model.Thereby erase the board effort and unhealthful problem just can have been solved.
Below by using method, the utility model is done more detailed description:
The novel blackboard eraser of this utility model is work like this:
In use, when the need use erases the board, with foot-operated moving lever 6, because lever 6 principles, weight 7 is lifted, then blackboard eraser 10 moves downward along blackboard 8 in the effect of self gravitation, and bristle 9 is wiped the writing on the blackboard 8, after unclamping lever 6, weight 7 moves downward under the self gravitation effect, by draught line 3 blackboard eraser 10 is pulled upwardly simultaneously, removes writing once more.
Realize that preferred plan of the present utility model is is material with timber, utilize the basic equipment of teaching aid factory, take the single-piece manufacturing, unite to assemble and produce by batch, the demand with supply teaching circle so just can realize practical value of the present utility model and economic worth better.
Claims (4)
1. novel blackboard eraser, it is to be made of fixed pulley I (1), fixed pulley II (2), draught line (3), fixed pulley III (4), bearing (5), lever (6), weight (7), blackboard (8), bristle (9), blackboard eraser (10), it is characterized in that draught line (1) is installed in the outer fix of fixed pulley I (1).
2. novel blackboard eraser according to claim 1 is characterized in that draught line (3) is installed in the upper position of blackboard eraser (10).
3. novel blackboard eraser according to claim 1 is characterized in that lever (6) is installed in the upper position of bearing (5).
4. novel blackboard eraser according to claim 1 is characterized in that weight (7) is installed in the leftward position of draught line (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01200218 CN2460325Y (en) | 2001-01-08 | 2001-01-08 | Eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01200218 CN2460325Y (en) | 2001-01-08 | 2001-01-08 | Eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2460325Y true CN2460325Y (en) | 2001-11-21 |
Family
ID=33622538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01200218 Expired - Fee Related CN2460325Y (en) | 2001-01-08 | 2001-01-08 | Eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2460325Y (en) |
-
2001
- 2001-01-08 CN CN 01200218 patent/CN2460325Y/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 |