CN202702969U - Chalk end utilizing unit - Google Patents
Chalk end utilizing unit Download PDFInfo
- Publication number
- CN202702969U CN202702969U CN 201220306594 CN201220306594U CN202702969U CN 202702969 U CN202702969 U CN 202702969U CN 201220306594 CN201220306594 CN 201220306594 CN 201220306594 U CN201220306594 U CN 201220306594U CN 202702969 U CN202702969 U CN 202702969U
- Authority
- CN
- China
- Prior art keywords
- chalk
- piston
- push rod
- cylindrical shell
- chalk end
- 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 belongs to the technical field of daily supplies, particularly relates to a chalk end utilizing unit, and aims at solving the problem that chalk ends are seriously wasted. The chalk end utilizing unit comprises a cylinder body, a piston, a push rod and a seal ring. The piston is arranged on the cylinder body. The push rod is connected with the right end of the piston. The seal ring is arranged on the left end of the cylinder body. The right end of the push rod extends out of the cylinder body. The chalk end utilizing unit has the advantages of being simple in structure and convenient to use, saving cost and the like.
Description
Technical field
The utility model belongs to the articles for daily use technical field, is specifically related to a kind of chalk end using holder.
Background technology
Chalk is school's indispensable realia of giving lessons, and the use amount of chalk is very large, but all directly thrown away with remaining chalk end, has both polluted the cost that environment has also increased teaching, is the significant wastage of resource.
Summary of the invention
The utility model provides a kind of chalk end using holder mainly for the serious problem of chalk end waste.
The utility model is to address the above problem the technical scheme of taking to be:
A kind of chalk end using holder is comprised of cylindrical shell, the sealing ring that is located at the piston in the cylindrical shell, the push rod that is connected with the right-hand member of piston and is located at the cylindrical shell left end, and the right-hand member of described push rod extends to the outside of cylindrical shell.
The utility model adopts technique scheme, chalk end is contained in the cylindrical shell, adjust the position of chalk end by pulling push rod and piston, simultaneously in order to prevent that chalk end from accessing from the left end of cylindrical shell, left end at cylindrical shell is provided with sealing ring, sealing ring can also be used for fixedly chalk end, prevents from rocking when chalk end from using.Therefore, compared with prior art, the utlity model has simple in structure, easy to use, save the advantage such as cost.
Description of drawings
Fig. 1 is structural representation of the present utility model.
The specific embodiment
Embodiment 1
As shown in Figure 1, a kind of chalk end using holder, by cylindrical shell 1, be located at piston 2, the push rod 3 that is connected with the right-hand member of piston 2 in the cylindrical shell 1 and the sealing ring 4 that is located at cylindrical shell 1 left end forms, the right-hand member of described push rod 3 extends to the outside of cylindrical shell 1.
Using method of the present utility model: chalk end 5 is put in the cylindrical shell 1 from the left end of cylindrical shell 1, then adjusted the position of chalk end 5 by pulling push rod 3 and piston 2.
Claims (1)
1. chalk end using holder, it is characterized in that by cylindrical shell (1), be located at piston (2), the push rod (3) that is connected with the right-hand member of piston (2) in the cylindrical shell (1) and the sealing ring (4) that is located at cylindrical shell (1) left end forms, the right-hand member of described push rod (3) extends to the outside of cylindrical shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220306594 CN202702969U (en) | 2012-06-28 | 2012-06-28 | Chalk end utilizing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220306594 CN202702969U (en) | 2012-06-28 | 2012-06-28 | Chalk end utilizing unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202702969U true CN202702969U (en) | 2013-01-30 |
Family
ID=47583303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220306594 Expired - Fee Related CN202702969U (en) | 2012-06-28 | 2012-06-28 | Chalk end utilizing unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202702969U (en) |
-
2012
- 2012-06-28 CN CN 201220306594 patent/CN202702969U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20180628 |