CN201366887Y - Magnetic sanitary blackboard eraser - Google Patents
Magnetic sanitary blackboard eraser Download PDFInfo
- Publication number
- CN201366887Y CN201366887Y CNU2009200019394U CN200920001939U CN201366887Y CN 201366887 Y CN201366887 Y CN 201366887Y CN U2009200019394 U CNU2009200019394 U CN U2009200019394U CN 200920001939 U CN200920001939 U CN 200920001939U CN 201366887 Y CN201366887 Y CN 201366887Y
- Authority
- CN
- China
- Prior art keywords
- magnet
- blackboard eraser
- housing
- vertical
- shell
- 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 magnetic sanitary blackboard eraser, which comprises a hair felt and a shell and is characterized in that square vertical barrels are respectively arranged on the sides of the two ends close to the shell, the vertical barrels and the hair felt are arranged on the same side of the shell, vertical grooves are arranged at the two ends of the vertical barrel close to the shell, sliding blocks are arranged on the vertical barrels, connecting rods connected with the sliding blocks penetrate through the vertical grooves, the other end of each connecting rod is connected with a magnet, the magnet is placed in the vertical barrel and the a spring is arranged between the magnet and the shell. The utility model has the advantages that the extension and the retraction of the magnet can be freely controlled through hand-holding the blackboard eraser, the blackboard eraser can be easily adsorbed on the blackboard and the operation is simple, convenient and sanitary.
Description
Technical field
The utility model relates to a kind of blackboard eraser, a kind of magnetic health blackboard eraser of more specifically saying so.
Background technology
Blackboard eraser is the aid that often uses in the daily teaching, people have wiped letter written with chalk and generally blackboard eraser will be placed on the dais later on, but the obvious inconvenience of blackboard eraser that is placed on the dais picks and places use at any time, a kind of blackboard eraser that has the magnet opposite with blackboard magnetic is overleaf arranged at present, can obsolete the time, blackboard eraser be sticked on any position of blackboard., this blackboard eraser will be adsorbed on the blackboard magnet at the back side its upset after having wiped blackboard, and in the process of upset, the felt hair that has chalk dust can directly contact palm portion, pollutes user's palm, brings a lot of inconvenience.
Summary of the invention
The purpose of this utility model provides a kind of simple in structure and can conveniently be adsorbed on magnetic health blackboard eraser on the blackboard.
The purpose of this utility model can realize in the following manner: magnetic health blackboard eraser, include felt hair and housing, be characterized in being respectively arranged with square column near the housing side faces at both ends, column and felt hair are in the same side of housing, have vertical slot at column near on the direction at housing two ends, and column is provided with slide block, the connecting rod that links to each other with slide block passes vertical slot, the other end of connecting rod is connected with magnet, and magnet places column inside, is connected with spring between magnet and the housing.
Described magnetic health blackboard eraser, magnet is opposite with blackboard magnetic.
Described magnetic health blackboard eraser has asperities on the slide block.
The utility model compared with prior art has following advantage: has the magnet that can slide, holds blackboard eraser stretching of controlling magnet freely, be convenient to very much be adsorbed on the blackboard, and simple to operate, convenient and healthy.
Description of drawings
Accompanying drawing 1 is a structural representation of the present utility model.
Accompanying drawing 2 is side views of the present utility model.
The specific embodiment
As follows with reference to accompanying drawing 1, Fig. 2: magnetic health blackboard eraser, include felt hair 1 and housing 2, be characterized in being respectively arranged with square column 3 near housing 2 side faces at both ends, column 3 and felt hair 1 are in the same side of housing 2, have vertical slot 4 at column 3 near on the directions at housing 2 two ends, and column 3 is provided with slide block 5, the connecting rod 6 that links to each other with slide block 5 passes vertical slot 4, the other end of connecting rod 6 is connected with magnet 7, and magnet 7 places column 3 inside, is connected with spring 8 between magnet 7 and the housing 2.
During use, finger is held the slide block of housing 2 both sides, and it is flexible that forefinger promotes that housing 2 promptly can sliding slider 5 controlling magnets 7, is adsorbed on the blackboard with blackboard eraser soon after having wiped letter written with chalk, and is simple to operate, easy to use.
Claims (3)
1, magnetic health blackboard eraser, include felt hair (1) and housing (2), it is characterized in that: be respectively arranged with square column (3) near housing (2) side faces at both ends, column (3) and felt hair (1) are in the same side of housing (2), have vertical slot (4) at column (3) near on the direction at housing (2) two ends, column (3) is provided with slide block (5), the connecting rod (6) that links to each other with slide block (5) passes vertical slot (4), the other end of connecting rod (6) is connected with magnet (7), magnet (7) places column (3) inside, is connected with spring (8) between magnet (7) and the housing (2).
2, magnetic health blackboard eraser according to claim 1, it is characterized in that: magnet (7) is opposite with blackboard magnetic.
3, magnetic health blackboard eraser according to claim 1, slide block has asperities on (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200019394U CN201366887Y (en) | 2009-01-03 | 2009-01-03 | Magnetic sanitary blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200019394U CN201366887Y (en) | 2009-01-03 | 2009-01-03 | Magnetic sanitary blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201366887Y true CN201366887Y (en) | 2009-12-23 |
Family
ID=41485786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200019394U Expired - Fee Related CN201366887Y (en) | 2009-01-03 | 2009-01-03 | Magnetic sanitary blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201366887Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102310695A (en) * | 2011-10-10 | 2012-01-11 | 李雪松 | Dust-proof blackboard eraser |
| CN102381113A (en) * | 2011-10-10 | 2012-03-21 | 邹宇航 | Absorption type blackboard eraser |
| CN106079984A (en) * | 2016-06-26 | 2016-11-09 | 钱煜琴 | A kind of dust-proof chalk eraser |
| CN111716945A (en) * | 2019-03-19 | 2020-09-29 | 安徽理工大学 | Blackboard eraser |
-
2009
- 2009-01-03 CN CNU2009200019394U patent/CN201366887Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102310695A (en) * | 2011-10-10 | 2012-01-11 | 李雪松 | Dust-proof blackboard eraser |
| CN102381113A (en) * | 2011-10-10 | 2012-03-21 | 邹宇航 | Absorption type blackboard eraser |
| CN106079984A (en) * | 2016-06-26 | 2016-11-09 | 钱煜琴 | A kind of dust-proof chalk eraser |
| CN106079984B (en) * | 2016-06-26 | 2017-11-10 | 季业卿 | A kind of dust-proof chalk eraser |
| CN111716945A (en) * | 2019-03-19 | 2020-09-29 | 安徽理工大学 | Blackboard eraser |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091223 Termination date: 20110103 |