CN2166020Y - Magnetic wiper for chalk - Google Patents
Magnetic wiper for chalk Download PDFInfo
- Publication number
- CN2166020Y CN2166020Y CN 93205721 CN93205721U CN2166020Y CN 2166020 Y CN2166020 Y CN 2166020Y CN 93205721 CN93205721 CN 93205721 CN 93205721 U CN93205721 U CN 93205721U CN 2166020 Y CN2166020 Y CN 2166020Y
- Authority
- CN
- China
- Prior art keywords
- chalk
- magnetic
- permanent magnet
- box cover
- upper box
- 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 chalk wiper, which comprises an upper box cover, a lower box bottom, a permanent magnet and friction material, wherein, the upper box cover and the lower box bottom are hinged together through a shaft and the permanent magnet and the friction material are arranged on the magnetic wiper. The permanent magnet is arranged in the upper box cover, and one surface of the lower box bottom has a closing iron block and the other surface of the lower box bottom is filled with felt wool material which is spaced by mane in middle. The utility model needs to be matched with special magnetic chalks, can effectively wipe chalk writings, can effectively absorb magnetic chalk dust and overcomes the disadvantages of the existing chalk wiper which can not absorb the wiped chalk dust to ensure the health of a user who often uses chalks.
Description
The utility model relates to a kind of culture and education articles for use, and particularly a kind of magnetic chalk is wiped.
Present widely used chalkboard eraser, mostly being rectangle plank or plastics is the friction material that material is fixed felt hair and so in its lower section, armrest is moving during use is wiped the chalk writing of blackboard or other body surface, yet, this chalkboard eraser can only adhere to chalk dust seldom in use, most chalk dust but flies upward in air, not only influences indoor environment, and influences the healthy of people.
The utility model provides a kind of magnetic chalk to wipe according to above-mentioned situation, and it is simple in structure, easy to use, it can remove the magnetic chalk writing on blackboard or other body surface effectively, absorption magnetic chalk dust, it is not flown upward in room air, reduce pollution environment.
The utility model is realized by following manner: a kind of magnetic chalk is wiped, comprise by at the bottom of hinged upper box cover of axle and the play box and go up the permanent magnet and the friction material of setting, in the upper box cover that magnetic chalk is wiped permanent magnet is housed, one side at the bottom of the following box is equipped with closed iron block, in the middle of being equipped with, its another side, on the limit around at the bottom of the following box dustproof retaining is set by mane felt batt material at interval.
Said dustproof retaining is to down-open recess.
The utility model is compared with prior art, has rational in infrastructurely, easy to use, and excellent its is to match with magnetic chalk when using, and under the effect of the electrostatic field that permanent magnet produces, the magnetic chalk dust can be adsorbed on magnetic chalk and smear.
Further specify below in conjunction with embodiment shown in the drawings.
Fig. 1 is the utility model general structure schematic diagram.
Fig. 2 is the A-A cutaway view.
Among the figure: at the bottom of 1 closed iron block, 2 upper box covers, 3 permanent magnets, the 4 times boxes, 5 mane materials, 6 felt batt material, 7 anti-retainings, 8 coupling spindles.
Best enforcement of the present utility model:
Shown in Fig. 1～2; A kind of magnetic chalk is wiped, comprise by axle hinge knot together upper box cover and play box at the bottom of and go up the permanent magnet and the friction material of setting, in the upper box cover of the present utility model permanent magnet is housed, the one side at the bottom of the following box is equipped with closed iron block, band mane felt batt material at interval in the middle of another side is equipped with.
Two ringshaped magnets are housed in the said upper box cover, said closed iron, available common iron rectangle iron block inlays on the end relative with coupling spindle at the bottom of the following box, when using, close at the bottom of the following box that upper box cover is hinged by axle, closed iron block on the electrostatic field that permanent magnet on the upper box cover produces holds down at the bottom of the box, with upper box cover with at the bottom of box, be combined into one, prevent the displacement rock.
Be provided with on the surrounding at the bottom of the said down box to recessed dustproof retaining, because permanent magnet produces the effect of electrostatic field magnetic chalk is adsorbed on the chalkboard eraser, but because the recessed anti-retaining that is provided with that Open Side Down, the magnetic chalk dust can not be crossed dustproof retaining, and the user keeps clean, health.
Said felt batt material by the mane interval has adsorbs the effect of magnetic dust preferably, full fashionable when magnetic chalkboard eraser absorption magnetic chalk dust, the magnetic chalk wiping is placed on the magnetic chalk ash receives in the grey box, open upper box cover, the magnetic chalk ash comes off automatically in receiving grey box.Said coupling spindle, promptly instantly the friction material at the bottom of the box by abrasion to can not re-use the time, coupling spindle is extracted out, at the bottom of the following box that more renews again, can reuse, save material, cost is reduced.
Claims (2)
1, a kind of magnetic chalk is wiped, comprise by at the bottom of hinged upper box cover of axle and the play box and go up the permanent magnet and the friction material of setting, the utility model feature is: permanent magnet is housed in the upper box cover, on the one side at the bottom of the following box closed iron block is housed, another side is equipped with middle by mane felt batt material at interval.Dustproof retaining is set on the limit around at the bottom of the following box.
2, magnetic chalk according to claim 1 is wiped, and it is characterized in that: the dustproof retaining that is provided with on the surrounding at the bottom of the following box is the groove under shed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93205721 CN2166020Y (en) | 1993-03-13 | 1993-03-13 | Magnetic wiper for chalk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93205721 CN2166020Y (en) | 1993-03-13 | 1993-03-13 | Magnetic wiper for chalk |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2166020Y true CN2166020Y (en) | 1994-05-25 |
Family
ID=33788919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93205721 Expired - Fee Related CN2166020Y (en) | 1993-03-13 | 1993-03-13 | Magnetic wiper for chalk |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2166020Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106864107A (en) * | 2012-05-18 | 2017-06-20 | 马鞍山市金潮橡胶技术研发科技有限公司 | A kind of magnetic dustless environment protecting clipboard（Blackboard) instrument |
| CN107297977A (en) * | 2017-08-04 | 2017-10-27 | 丁玉清 | A kind of blackboard of children education |
-
1993
- 1993-03-13 CN CN 93205721 patent/CN2166020Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106864107A (en) * | 2012-05-18 | 2017-06-20 | 马鞍山市金潮橡胶技术研发科技有限公司 | A kind of magnetic dustless environment protecting clipboard（Blackboard) instrument |
| CN106864109A (en) * | 2012-05-18 | 2017-06-20 | 马鞍山市金潮橡胶技术研发科技有限公司 | A kind of magnetic dustless environment protecting clipboard (blackboard) instrument |
| CN106864108A (en) * | 2012-05-18 | 2017-06-20 | 马鞍山市金潮橡胶技术研发科技有限公司 | A kind of magnetic dustless environment protecting clipboard (blackboard) instrument |
| CN107089075A (en) * | 2012-05-18 | 2017-08-25 | 马鞍山市金潮橡胶技术研发科技有限公司 | A kind of magnetic dustless environment protecting clipboard (blackboard) instrument |
| CN107089074A (en) * | 2012-05-18 | 2017-08-25 | 马鞍山市金潮橡胶技术研发科技有限公司 | A kind of magnetic dustless environment protecting clipboard (blackboard) instrument |
| CN107089076A (en) * | 2012-05-18 | 2017-08-25 | 马鞍山市金潮橡胶技术研发科技有限公司 | A kind of magnetic dustless environment protecting clipboard (blackboard) instrument |
| CN107297977A (en) * | 2017-08-04 | 2017-10-27 | 丁玉清 | A kind of blackboard of children education |
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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 |