CN2539646Y - Retractable blackboard eraser - Google Patents
Retractable blackboard eraser Download PDFInfo
- Publication number
- CN2539646Y CN2539646Y CN 02203294 CN02203294U CN2539646Y CN 2539646 Y CN2539646 Y CN 2539646Y CN 02203294 CN02203294 CN 02203294 CN 02203294 U CN02203294 U CN 02203294U CN 2539646 Y CN2539646 Y CN 2539646Y
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- CN
- China
- Prior art keywords
- blackboard eraser
- utility
- model
- bar
- retractable
- 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 relates to a telescopic blackboard eraser, comprising a blackboard eraser, a connecting base, a thin rod, a thick rod, a spring and a button. For the technical proposal adopts the blackboard eraser with the rod, the utility model has novel concept, and strong practicability. The utility model is characterized in that the connecting base is arranged at the upper surface of the blackboard eraser, the thin rod is positioned at the upper end of the connecting base, and the thick rod is positioned at the external surface of the thin rod. The utility model is a telescopic blackboard eraser with practical value.
Description
(1) technical field:
The utility model relates to Retractable 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, writes or drawing article, the assistant product group of writing or draw, big group of the cleaning device of blackboard or slabstone, the little technical group field of wiping clamping device.
(2) background technology:
At present, existing and once had about big group of the cleaning device of blackboard or slabstone, the technology of the group of wiping clamping device was all done very fruitful effort to the demand of Retractable blackboard eraser, also once designed many outstanding technical schemes.As being declared by Gao Xiaoqing of order Decree of Patent Office of China December 15 in 1997, China Patent No. (ZL) is: No. 97239373.0 utility model title is the utility model patent of " a kind of blackboard brush ", the technical scheme that is adopted.At big group of the cleaning device of blackboard or slabstone, group's technical elements of wiping clamping device is a routine of great value invention, and it has solved the problem of blackboard brush effectively.But still have some deficits, it also is difficult to solve traditional blackboard and wipes the problem that is difficult to clip the eminence position.
(3) summary of the invention:
The purpose of this utility model is to provide a kind of Retractable blackboard eraser.Wipe the problem that is difficult to clip the eminence position to solve traditional blackboard.
The purpose of this utility model is achieved in that the Retractable blackboard eraser of this utility model.Mainly constitute by blackboard eraser, Connection Block, thin bar, thick bar, spring, button.Its blackboard eraser, spring, button are by selecting for use on the market.Its Connection Block is a square shape, uses metal material, through the turning processing and manufacturing.Its thin bar is a circular bar shape, uses metal material, through the turning processing and manufacturing.Its thick bar is hollow round-shaped, uses metal material, through the turning processing and manufacturing.Spring adopts rubbing method to be installed in the interior location of thick bar, constitutes integrative-structure, and function has been the elastic force effect.Button adopts screw method to be installed in the outer wall position of thick bar, constitutes the convex shape press-button structure, and function is to start to control to make to use.Connection Block adopts screw method to be installed in the upper surface position of blackboard eraser, constitutes the convex shape integrative-structure, and function has been the connection effect.Thin bar adopts welding method to be installed in the upper end position of Connection Block, constitutes supporting construction, and function is to play a supportive role.Thick bar adopts rubbing method to be installed in the outer surface position of thin bar, constitutes the cylindrical shape nested structure, and function has been the lengthening effect.So just realized the purpose of this utility model.
The advantage of utility model: big group of the cleaning device of the utility model and original blackboard or slabstone, group's technology of wiping clamping device has been compared an advantage and improvement;
The first, because the utility model has designed the blackboard eraser of band bar in technical scheme, so novel, practical; Thereby just can more effectively solve traditional blackboard and wipe the problem that is difficult to clip the eminence position.
(4) description of drawings:
Accompanying drawing provides structural representation of the present utility model:
Fig. 1 is the main TV structure schematic diagram of Retractable blackboard eraser of the present utility model;
The numbering of parts explanation in the schematic diagram: 1 blackboard eraser, 2 Connection Blocks, 3 thin bar 4 thick bar 5 springs 6 buttons
(5) specific embodiment:
In the optimum implementation of Retractable 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: see also Fig. 1: as shown in the figure, Retractable blackboard eraser of the present utility model.Mainly constitute by blackboard eraser 1, Connection Block 2, thin bar 3, thick bar 4, spring 5, button 6.Spring 5 adopts rubbing method to be installed in the interior location of thick bar 4, constitutes integrative-structure, and function has been the elastic force effect.Button 6 adopts screw method to be installed in the outer wall position of thick bar 4, constitutes the convex shape press-button structure, and function is to start to control to make to use.Connection Block 2 adopts screw method to be installed in the upper surface position of blackboard eraser 1, constitutes the convex shape integrative-structure, and function has been the connection effect.Thin bar 3 adopts welding method to be installed in the upper end position of Connection Block 2, constitutes supporting construction, and function is to play a supportive role.Thick bar 4 adopts rubbing method to be installed in the outer surface position of thin bar 3, constitutes the cylindrical shape nested structure, and function has been the lengthening effect.
Its dynamic structure: in force:
Its thick bar 4 acts on blackboard eraser 1 by thin bar 3, thereby finishes erasing the board of task.So just realized the purpose of this utility model.Thereby just can solve traditional blackboard and wipe the problem that is difficult to clip the eminence position.
Below by using method, the utility model is done more detailed description:
The Retractable blackboard eraser of this utility model is work like this:
In use, when erasing the board, suitably regulate the length of thick bar 4, its thick bar 4 acts on blackboard eraser 1 by thin bar 3, thereby finishes erasing the board of task.
Realize that preferred plan of the present utility model is is material with the metal, utilize the basic equipment of five metals factory, take to produce by batch in a large number, the demand with supply cultural and educational circles so just can realize practical value of the present utility model and economic worth better.
Claims (3)
1. Retractable blackboard eraser, it is to be made of blackboard eraser (1), Connection Block (2), thin bar (3), thick bar (4), spring (5), button (6), spring (5) is installed in the interior location of thick bar (4), button (6) is installed in the outer wall position of thick bar (4), it is characterized in that Connection Block (2) is installed in the upper surface position of blackboard eraser (1).
2. Retractable blackboard eraser according to claim 1 is characterized in that thin bar (3) is installed in the upper end position of Connection Block (2).
3. Retractable blackboard eraser according to claim 1 is characterized in that thick bar (4) is installed in the outer surface position of thin bar (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02203294 CN2539646Y (en) | 2002-01-31 | 2002-01-31 | Retractable blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02203294 CN2539646Y (en) | 2002-01-31 | 2002-01-31 | Retractable blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2539646Y true CN2539646Y (en) | 2003-03-12 |
Family
ID=33685541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02203294 Expired - Fee Related CN2539646Y (en) | 2002-01-31 | 2002-01-31 | Retractable blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2539646Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103950330A (en) * | 2014-04-04 | 2014-07-30 | 深圳市福田区青少年科技教育协会 | Telescopic blackboard eraser |
| CN106379092A (en) * | 2016-09-12 | 2017-02-08 | 芜湖能盟信息技术有限公司 | Multifunctional blackboard eraser |
| CN108081834A (en) * | 2017-12-12 | 2018-05-29 | 郑州赫恩电子信息技术有限公司 | A kind of telescopic automatic dust-absorption blackboard eraser of middle and primary schools |
-
2002
- 2002-01-31 CN CN 02203294 patent/CN2539646Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103950330A (en) * | 2014-04-04 | 2014-07-30 | 深圳市福田区青少年科技教育协会 | Telescopic blackboard eraser |
| CN106379092A (en) * | 2016-09-12 | 2017-02-08 | 芜湖能盟信息技术有限公司 | Multifunctional blackboard eraser |
| CN108081834A (en) * | 2017-12-12 | 2018-05-29 | 郑州赫恩电子信息技术有限公司 | A kind of telescopic automatic dust-absorption blackboard eraser of middle and primary schools |
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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 |