CN201211775Y - Chalk sleeve - Google Patents
Chalk sleeve Download PDFInfo
- Publication number
- CN201211775Y CN201211775Y CNU200820120643XU CN200820120643U CN201211775Y CN 201211775 Y CN201211775 Y CN 201211775Y CN U200820120643X U CNU200820120643X U CN U200820120643XU CN 200820120643 U CN200820120643 U CN 200820120643U CN 201211775 Y CN201211775 Y CN 201211775Y
- Authority
- CN
- China
- Prior art keywords
- chalk
- screw mandrel
- utility
- model
- chalk sleeve
- 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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- Pens And Brushes (AREA)
Abstract
The utility model discloses a chalk sleeve which comprises a rotary cover provided with a screw mandrel inside. The screw mandrel is connected with a chalk shell through screw threads. The utility model has the advantages that a piece of chalk can be load in the chalk sleeve so as to reduce the contact between a teacher and the chalk, and the chalk sleeve has simple and convenient use.
Description
Technical field
The utility model relates to a kind of chalk sleeve, particularly a kind of easy chalk sleeve.
Background technology
Chalk is indispensable on the teacher dais, the big and small chalk that has much broken of having put in the general chalk holder.The teacher directly takes chalk with hand, will be stained with chalk dust on hand, contacts other objects such as books after hand is made dirty, and make other objects also be with chalk dust, and skin is also had certain influence, be the problem of teacher's worries.And the chalk that has much broken takes up and is inconvenient to write, and often is dropped, and causes certain waste.
Summary of the invention
At the deficiencies in the prior art part, the purpose of this utility model provides the convenient again chalk sleeve that uses of a kind of environmental protection.
The purpose of this utility model is achieved through the following technical solutions: a kind of chalk sleeve, and it comprises that an inside has the swivelling cover of screw mandrel, screw mandrel is by the chalk housing that is threaded.
On at the bottom of the lid of described screw mandrel in swivelling cover.
The screw thread of screw thread corresponding to screw mandrel arranged in the described chalk housing.
The barrel that described chalk housing is made into by elastomeric material.
Advantage of the present utility model is: chalk can be loaded in the chalk sleeve, has reduced contacting of teacher and chalk, and chalk sleeve is easy to use.
Description of drawings
Fig. 1 is the cutaway view of the utility model embodiment.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is described in further detail:
Fig. 1 has provided a kind of chalk sleeve of the present utility model, and it comprises that an inside has the swivelling cover 2 of screw mandrel 1, and screw mandrel 1 is by the chalk housing 3 that is threaded.
Screw mandrel 1 is fixed in center at the bottom of the lid in the swivelling cover 2.
The screw thread of screw thread 4 corresponding to screw mandrel 1 arranged in the chalk housing 3.
The barrel that chalk housing 3 is made into by elastomeric material, chalk 5 can firmly be filled in the chalk housing 3 gently.
During use, chalk 5 is filled in the chalk housing 3, twisted swivelling cover 2 screw mandrel 1 is screwed in the chalk housing 3, along with constantly being screwed into of screw mandrel 1, chalk 5 is extruded thereupon outward, gets final product up to the length of needs, exposed parts uses up and can continue to twist swivelling cover 2, uses up up to whole chalk 5 and changes chalk 5.
At last, it is also to be noted that what more than enumerate only is specific embodiment of the utility model.Obviously, the utility model is not limited to above examples of implementation, and many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from the disclosed content of the utility model all should be thought protection domain of the present utility model.
Claims (4)
1, a kind of chalk sleeve is characterized in that, it comprises that an inside has the swivelling cover of screw mandrel, and screw mandrel is by the chalk housing that is threaded.
2, chalk sleeve according to claim 1 is characterized in that, at the bottom of the lid of described screw mandrel in swivelling cover on.
3, chalk sleeve according to claim 1 is characterized in that, the screw thread of screw thread corresponding to screw mandrel arranged in the described chalk housing.
4, chalk sleeve according to claim 1 is characterized in that, the barrel that described chalk housing is made into by elastomeric material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820120643XU CN201211775Y (en) | 2008-07-03 | 2008-07-03 | Chalk sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820120643XU CN201211775Y (en) | 2008-07-03 | 2008-07-03 | Chalk sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201211775Y true CN201211775Y (en) | 2009-03-25 |
Family
ID=40495934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820120643XU Expired - Fee Related CN201211775Y (en) | 2008-07-03 | 2008-07-03 | Chalk sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201211775Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109808346A (en) * | 2019-02-25 | 2019-05-28 | 马晨晓 | A kind of auxiliary initiation child learns to use appliance for holding pen |
| CN113232440A (en) * | 2021-05-24 | 2021-08-10 | 陈红炜 | Pen casing |
-
2008
- 2008-07-03 CN CNU200820120643XU patent/CN201211775Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109808346A (en) * | 2019-02-25 | 2019-05-28 | 马晨晓 | A kind of auxiliary initiation child learns to use appliance for holding pen |
| CN113232440A (en) * | 2021-05-24 | 2021-08-10 | 陈红炜 | Pen casing |
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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: 20090325 |