CN102825946A - Chalk with telescopic chalk sleeve - Google Patents
Chalk with telescopic chalk sleeve Download PDFInfo
- Publication number
- CN102825946A CN102825946A CN 201110160517 CN201110160517A CN102825946A CN 102825946 A CN102825946 A CN 102825946A CN 201110160517 CN201110160517 CN 201110160517 CN 201110160517 A CN201110160517 A CN 201110160517A CN 102825946 A CN102825946 A CN 102825946A
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- Prior art keywords
- chalk
- annular object
- sleeve
- annular
- annular material
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- 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.)
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Abstract
The invention discloses a chalk with a telescopic chalk sleeve. The chalk with the telescopic chalk sleeve comprises a chalk, and further comprises a chalk sleeve, wherein the chalk sleeve is formed by overlapping a plurality of annular materials which are different in size, the inner diameter, which is the smallest, of the first annular material is equal to the diameter of the top end of the chalk; one end of the first annular material is properly sleeved on the top end of the chalk; the inner diameter of the second annular material is properly equal to the outer diameter of the first annular material; the second annular material is properly sleeved at the other end of the first annular material; and moreover, the first annular material can be moved up and down in the second annular material. According to the chalk with the telescopic chalk sleeve, the chalk sleeve is arranged on the chalk, so the chalk can be conveniently used, and the problems that the chalk dust is adhered caused by directly contacting the chalk, and the chalk dust are hardly cleaned can be solved; and moreover, the chalk sleeve is arranged on the chalk, so that the chalk can be conveniently taken, and the problem that short chalks cannot be taken to use can be solved; and meanwhile the waste can be reduced.
Description
Technical field
The present invention relates to a kind of study article, relate in particular to a kind of chalk that has the scalable pen cap.
Background technology
In the daily teaching or in the office, when using chalk, always on hand, speckle with a large amount of chalk dusts on the clothes, at this moment; When touching other things, will be infected with everywhere all be chalk dust, inconvenience very, and be unfavorable for health; And chalk always runs into such puzzlement: can't be affectedly bashful because chalk is too little when using last little section; At last, have to abandon serious waste phenomenon.
Summary of the invention
To the problem of above-mentioned existence, the purpose of this invention is to provide a kind of chalk that has the scalable pen cap.
The objective of the invention is to realize through following technical proposals:
A kind of chalk that has scalable chalk sleeve comprises chalk, wherein; Also comprise a pen cap, the said pen cap is by if annular object stack becomes, and said annular object is not of uniform size; Size according to diameter is arranged in order, and the annular object of said minimum is the first annular object, secondly; Less annular object is the second annular object, and wherein, the internal diameter of the first annular object of said minimum is identical with the diameter on said chalk top; One end of the said first annular object is enclosed within the top of said chalk just; The internal diameter of the said second annular object equals the external diameter of the said first annular object just, and the said second annular object is enclosed within the other end of the said first annular object just, and the said first annular object can move up and down in the said second annular object.
Above-mentioned a kind of chalk that has scalable chalk sleeve; Wherein, The said pen cap also comprises the 3rd annular object, and the internal diameter of said the 3rd annular object equals the external diameter of the said second annular object just; The said the 3rd annular object is enclosed within the other end of the said second annular object just, and the said second annular object can move up and down in the said the 3rd annular object.
Above-mentioned a kind of chalk that has scalable chalk sleeve, wherein, said chalk sleeve is to be made of plastics.
Above-mentioned a kind of chalk that has scalable chalk sleeve wherein, also comprises some bands on the said chalk sleeve.
Compared with present technology, beneficial effect of the present invention is: the present invention has installed a pen cap on chalk, and convenient the use avoided being infected with chalk dust because directly contact chalk; Be difficult for cleaning, and, the pen cap is installed on chalk, conveniently be affectedly bashful chalk; Reduced because chalk is too short, and the embarrassing phenomenon that can't use cuts the waste, simultaneously; This chalk sleeve has scalability, the convenient use.
Description of drawings
Fig. 1 is the structural representation that the present invention has the chalk of the scalable pen cap.
The specific embodiment
Below in conjunction with schematic diagram and concrete operations embodiment the present invention is described further.
As shown in Figure 1, the present invention has the chalk of the scalable pen cap, comprises chalk 1; Wherein, also comprise a pen cap 2, the pen cap 2 is by becoming as if annular object stack; Said annular object is not of uniform size, is arranged in order according to the size of diameter, and the annular object of said minimum is the first annular object 21; Secondly, less annular object 22 is the second annular object, wherein; The internal diameter of the first annular object 21 of said minimum is identical with the diameter on chalk 1 top, and an end of the first annular object 21 is enclosed within the top of chalk 1 just, and the internal diameter of the second annular object 22 equals the external diameter of the first annular object 21 just; The second annular object 22 is enclosed within the other end of the said first annular object 21 just, and the first annular object 21 can move up and down in the second annular object 22.
Further; Also comprise the 3rd annular object 23; The internal diameter of the 3rd annular object 23 equals the external diameter of the second annular object 22 just, and the 3rd annular object 23 is enclosed within the other end of the second annular object 21 just, and the second annular object 22 can move up and down in the 3rd annular object 23.
In use, chalk sleeve in the pen cap 2, according to self needs push-and-pull pen cap 2, thereby can be adjusted the length of the pen cap 2, wherein,, can use different materials to process the pen cap 2 according to self needs, for example, plastics.In addition, be affectedly bashful for ease, can also scribe some bands, increase the friction between the pen 1 and the pen cap 2, thereby use easily, place landing in the inside of the pen cap 2.
More than specific embodiment of the present invention is described in detail, but the present invention is not restricted to the specific embodiment of above description, it is just as example.To those skilled in the art, any equivalent modifications that the present invention is carried out with substitute also all among category of the present invention.Therefore, not breaking away from impartial conversion and the modification of having done under the spirit and scope of the present invention, all should contain within the scope of the invention.
Claims (4)
1. a chalk that has scalable chalk sleeve comprises chalk, it is characterized in that; Also comprise a pen cap, the said pen cap is by if annular object stack becomes, and said annular object is not of uniform size; Size according to diameter is arranged in order, and the annular object of said minimum is the first annular object, secondly; Less annular object is the second annular object, and wherein, the internal diameter of the first annular object of said minimum is identical with the diameter on said chalk top; One end of the said first annular object is enclosed within the top of said chalk just; The internal diameter of the said second annular object equals the external diameter of the said first annular object just, and the said second annular object is enclosed within the other end of the said first annular object just, and the said first annular object can move up and down in the said second annular object.
2. a kind of chalk that has scalable chalk sleeve as claimed in claim 1; It is characterized in that; The said pen cap also comprises the 3rd annular object, and the internal diameter of said the 3rd annular object equals the external diameter of the said second annular object just; The said the 3rd annular object is enclosed within the other end of the said second annular object just, and the said second annular object can move up and down in the said the 3rd annular object.
3. a kind of chalk that has scalable chalk sleeve as claimed in claim 1 is characterized in that said chalk sleeve is to be made of plastics.
4. a kind of chalk that has scalable chalk sleeve as claimed in claim 1 is characterized in that, also comprises some bands in the said chalk sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110160517 CN102825946A (en) | 2011-06-15 | 2011-06-15 | Chalk with telescopic chalk sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110160517 CN102825946A (en) | 2011-06-15 | 2011-06-15 | Chalk with telescopic chalk sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102825946A true CN102825946A (en) | 2012-12-19 |
Family
ID=47329343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110160517 Pending CN102825946A (en) | 2011-06-15 | 2011-06-15 | Chalk with telescopic chalk sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102825946A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103754005A (en) * | 2014-01-07 | 2014-04-30 | 苏州市职业大学 | Crayon with changeable core |
| CN105946397A (en) * | 2015-10-02 | 2016-09-21 | 刘乐凝 | Chalk protection sleeve |
-
2011
- 2011-06-15 CN CN 201110160517 patent/CN102825946A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103754005A (en) * | 2014-01-07 | 2014-04-30 | 苏州市职业大学 | Crayon with changeable core |
| CN105946397A (en) * | 2015-10-02 | 2016-09-21 | 刘乐凝 | Chalk protection sleeve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121219 |