CN201201418Y - Chalk sleeve - Google Patents
Chalk sleeve Download PDFInfo
- Publication number
- CN201201418Y CN201201418Y CNU2008201205403U CN200820120540U CN201201418Y CN 201201418 Y CN201201418 Y CN 201201418Y CN U2008201205403 U CNU2008201205403 U CN U2008201205403U CN 200820120540 U CN200820120540 U CN 200820120540U CN 201201418 Y CN201201418 Y CN 201201418Y
- Authority
- CN
- China
- Prior art keywords
- chalk
- chalk sleeve
- groove
- dust
- negative
- 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
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- Percussive Tools And Related Accessories (AREA)
Abstract
The utility model relates to a chalk sleeve capable of effectively sucking in chalk dust. The chalk sleeve has a groove jacket structure; the front end of a groove jacket is provided with dust suction holes; a negative-pressure fan is arranged in the groove jacket; the front end of the negative-pressure fan is provided with a filter membrane; a cavity between the filter membrane and the dust suction holes is a dust storage cavity; and the back end of the groove jacket is provided with a handle. The chalk sleeve has the advantages that the chalk sleeve can ensure the cleanliness of using chalks and effectively prevent the chalk dust from flying all over, and is simple, practical and low in manufacturing cost.
Description
Technical field
The utility model relates to a kind of chalk sleeve that can effectively chalk dust be sucked in the chalk sleeve, belongs to chalk sleeve and makes the field.
Background technology
At present, no matter be teacher, or the student, when writing with chalk word, dust from flying is unfavorable for that the people's is healthy; Secondly, the chalk that breaks uses very inconvenient, has caused waste.
Summary of the invention
Purpose of design: avoid the weak point in the background technology, design and a kind ofly can effectively prevent dust is drawn into the cleaning powder pen cap in the chalk sleeve.
Design: to achieve these goals.1, chalk sleeve is the jacket structured and groove chuck front end of groove and has air suction opening, and suction port with the design that dust sucks, filters, is one of technical characterictic of the present utility model by negative-pressure air fan.The purpose of doing like this is: both can avoid staff contact chalk, the dust that is produced in the time of chalk can being write again is drawn in the chalk sleeve, has not only avoided flying upward of dust, and has guaranteed Writer's healthy.
Technical scheme: chalk sleeve, it is jacket structured that described chalk sleeve is groove, and groove chuck front end has air suction opening, the cover of groove chuck is built-in with negative-pressure air fan, the negative-pressure air fan front end is equipped with filter membrane, and the cavity between filter membrane and air suction opening is a dust-collecting cavity, and groove chuck rear end is equipped with handle.
The utility model is compared with background technology, and the one, both can effectively chalk dust be drawn in the chalk chuck, avoid flying upward of dust everywhere, utilize Writer's healthy; The 2nd, simple, practical, low cost of manufacture.
Description of drawings
Fig. 1 is the structural representation of chalk sleeve.
The specific embodiment:
Embodiment 1: with reference to Fig. 1, chalk sleeve, it is jacket structured that described chalk sleeve is groove, groove chuck front end has air suction opening 3, and the cover of groove chuck 2 is built-in with negative-pressure air fan 6, and the negative-pressure air fan front end is equipped with filter membrane 5, cavity between filter membrane and air suction opening is a dust-collecting cavity 4, groove chuck rear end is equipped with handle 7, and chalk 1 places in the groove of groove chuck, and the rear end cap of negative-pressure air fan has steam vent.That is to say, be cavity body in the chalk sleeve, be built-in with negative-pressure air fan 6, the chalk sleeve front end has clip slot 2, on have and inhale hole 3, inhale hole 3 and link to each other with storage chamber 4, storage chamber 4 one sides have filter membrane 5, chalk is with handle 7, chalk 1 places in the clip slot 2.Clip slot 2 has up and down inhales hole 3, inhales hole 3 rounded structures, and negative-pressure air fan 6 is positioned at handle 7 front ends.The relative production of chalk sleeve and negative-pressure air fan occurring principle all are prior art, so be not described herein at this.
What need understand is; though above-mentioned fact Example is to the utility model detailed text description of contrasting; but these text descriptions; it is simple description to the utility model mentality of designing; rather than to the restriction of mentality of designing of the present utility model; any combination, increase or modification that is no more than the utility model mentality of designing all falls in the protection domain of the present utility model.
Claims (3)
1, a kind of chalk sleeve is characterized in that: it is jacket structured that described chalk sleeve is groove, and groove chuck front end has air suction opening, the cover of groove chuck is built-in with negative-pressure air fan, the negative-pressure air fan front end is equipped with filter membrane, and the cavity between filter membrane and air suction opening is a dust-collecting cavity, and groove chuck rear end is equipped with handle.
2, chalk sleeve according to claim 1 is characterized in that: chalk places in the groove of groove chuck.
3, chalk sleeve according to claim 1 is characterized in that: the rear end cap of negative-pressure air fan has steam vent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201205403U CN201201418Y (en) | 2008-06-29 | 2008-06-29 | Chalk sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201205403U CN201201418Y (en) | 2008-06-29 | 2008-06-29 | Chalk sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201201418Y true CN201201418Y (en) | 2009-03-04 |
Family
ID=40423730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201205403U Expired - Fee Related CN201201418Y (en) | 2008-06-29 | 2008-06-29 | Chalk sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201201418Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109291694A (en) * | 2018-10-22 | 2019-02-01 | 重庆三峡学院 | A kind of chalk auxiliary writing device |
-
2008
- 2008-06-29 CN CNU2008201205403U patent/CN201201418Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109291694A (en) * | 2018-10-22 | 2019-02-01 | 重庆三峡学院 | A kind of chalk auxiliary writing device |
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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: 20090304 |