CN202896021U - Chalk shell - Google Patents
Chalk shell Download PDFInfo
- Publication number
- CN202896021U CN202896021U CN 201220597691 CN201220597691U CN202896021U CN 202896021 U CN202896021 U CN 202896021U CN 201220597691 CN201220597691 CN 201220597691 CN 201220597691 U CN201220597691 U CN 201220597691U CN 202896021 U CN202896021 U CN 202896021U
- Authority
- CN
- China
- Prior art keywords
- chalk
- shell
- utility
- model
- slide block
- 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 relates to office supplies, in particular to a chalk shell. The chalk shell consists of a shell and a sliding block; the shell is provided with a tooth-shaped groove; and the sliding block is provided with convex and concave edges which are matched with the tooth-shaped groove for use. The chalk shell is simple in structure, reasonable in design and low in cost; and chalks can be effectively prevented from being broken in the using process.
Description
Technical field
The utility model relates to office accommodation, particularly a kind of Chalk casing.
Background technology
At present, school or office often can use chalk, but very easy section of chalk, and some hard chalks are to add grit just to be able to hardening in chalk, but this chalk is not easy clearly to write at blackboard because having added grit.And, in using the chalk process, the chalk foam often can be stained with people on hand with clothes on, be finished chalk at every turn and all will clean, these are all given in the studying and living and make troubles.
The utility model content
For the defective that exists in the prior art, the purpose of this utility model is to provide a kind of Chalk casing that prevents that chalk from use rupturing.
For reaching above purpose, the technical scheme that the utility model is taked is:
A kind of Chalk casing is comprised of shell and slide block, on the described shell serrate slot is set, and the concavo-convex rib that is used in conjunction with serrate slot is set on the described slide block.
The beneficial effects of the utility model: simple in structure, reasonable in design, cost is low, effectively prevents chalk fracture in use.
Description of drawings
The utility model has following accompanying drawing:
The structural representation of Fig. 1 the utility model Chalk casing
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
As shown in Figure 1, a kind of Chalk casing is comprised of shell 2 and slide block 3, and serrate slot 5 is set on the described shell, and the concavo-convex rib 4 that is used in conjunction with serrate slot 5 is set on the described slide block 3.
During use, chalk 1 is inserted in the shell 2, and the concavo-convex rib 4 on the slide block 3 is the position of chalk 1 fixedly, chalk 1 is slowly released along the movement of serrate slot 5 by slide block 3.Chalk casing of the present utility model also can be put into the chalk of segment together shell 1 and use, and so just can utilize fully little chalk end.
Claims (1)
1. a Chalk casing is comprised of shell (2) and slide block (3), it is characterized in that arranging on the described shell serrate slot (5), the upper concavo-convex rib (4) that is used in conjunction with described serrate slot (5) that arranges of described slide block (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220597691 CN202896021U (en) | 2012-11-07 | 2012-11-07 | Chalk shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220597691 CN202896021U (en) | 2012-11-07 | 2012-11-07 | Chalk shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202896021U true CN202896021U (en) | 2013-04-24 |
Family
ID=48116729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220597691 Expired - Fee Related CN202896021U (en) | 2012-11-07 | 2012-11-07 | Chalk shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202896021U (en) |
-
2012
- 2012-11-07 CN CN 201220597691 patent/CN202896021U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20131107 |