CN203864230U - Chalk sleeve - Google Patents
Chalk sleeve Download PDFInfo
- Publication number
- CN203864230U CN203864230U CN201420180654.2U CN201420180654U CN203864230U CN 203864230 U CN203864230 U CN 203864230U CN 201420180654 U CN201420180654 U CN 201420180654U CN 203864230 U CN203864230 U CN 203864230U
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- CN
- China
- Prior art keywords
- chalk
- cylinder
- chalk sleeve
- convenient
- 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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Abstract
The utility model relates to the field of teaching tools, in particular to a chalk sleeve. The chalk sleeve is characterized in that the chalk sleeve comprises a cylinder and a spherical surface which are mainly made of flexible plastic films or cloth or rubber materials, the cylinder and the spherical surface are a whole, the front end of the cylinder is provided with a circular ring with folds, and the spherical surface is located at the rear end of the cylinder and extends backwards. The chalk sleeve is simple in structure, convenient to use and practical. When a teacher writes with chalk, the hand does not make direct contact with the chalk, the situation that the skin of the hand is injured by the chalk is avoided, the teacher does not need to wash off chalk powder, the circular ring enables the chalk sleeve to be convenient to hold, and the chalk sleeve enables writing to be comfortable, and is cheap in raw material, low in cost, capable of being folded, convenient to carry and store and suitable for wide application and popularization.
Description
(1) technical field
The utility model relates to educational aid field, particularly a kind of chalk sleeve.
(2) background technology
The chalk that now teacher uses is all to write in directly hand held, the problem that it exists is, finger contacts meeting with chalk for a long time hand skin is damaged, and while teacher needs after class often to wash one's hands and removes chalk powder on hand, can reduce the interest that teacher uses chalk-writing.
(3) summary of the invention
The utility model, in order to make up the deficiencies in the prior art, provides a kind of simple in structure, convenient and practical chalk sleeve.
The utility model is achieved by the following technical solution:
A kind of chalk sleeve, it is characterized in that: comprise mainly cylinder and the sphere by soft plastic foil or cloth or elastomeric material, made, described cylinder and sphere are as a whole, drum diameter is 15-17mm, drum length is 50-100mm, sphere is positioned at cylinder rear end and extends backward, and spherical diameter is 15-17mm.
On the surface of described cylinder front end, being provided with length is the rubber rounding ring of 20-50mm, and annulus surface is provided with the convenient fold of holding of taking.
During use, in chalk sleeve, pack chalk into, a part for chalk is exposed in chalk sleeve outside, and the annulus that grasps chalk sleeve front end is write, after chalk exposed part writes, from the sphere of chalk sleeve rear end, push forward, make chalk again expose a part, can continue to write.
The beneficial effects of the utility model are: the utility model is simple in structure, convenient and practical, when teacher writes, hand does not directly contact with chalk, has removed the injury that hand skin is subject to chalk from, does not need to clean chalk powder, cylinder front end is provided with the annulus with fold, convenient taking held, comfortable writing, and raw material are cheap, cost is low, can fold, easy to carry and store, be suitable for wide popularization and application.
(4) accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is further described.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is expansion floor map of the present utility model.
In figure, 1 cylinder, 2 spheres, 3 annulus, 4 chalks, 5 folds, 6 cylinder developed surfaces, 7 development of a sphere faces.
(5) specific embodiment
Accompanying drawing is a kind of specific embodiment of the present utility model.This embodiment comprises cylinder 1 and the sphere 2 being made into integration, cylinder 1 and sphere 2 are made by soft plastic foil, cylinder 1 diameter is 15.5mm, cylinder 1 length is 70mm, on the surface of cylinder 1 front end, being provided with length is the rubber rounding ring 3 of 30mm, annulus 3 surfaces are provided with the convenient fold 5 of holding of taking, and sphere 2 is positioned at cylinder 1 rear end and extends backward, and sphere 2 diameters are 15.5mm.
During use, in chalk sleeve, pack chalk 4 into, a part for chalk 4 is exposed in chalk sleeve outside, and the annulus 3 that grasps chalk sleeve front end is write, after chalk 4 exposed parts write, from the sphere 2 of chalk sleeve rear end, push forward, make chalk 4 again expose a part, can continue to write.
The utility model is simple in structure, convenient and practical, when teacher writes, hand does not directly contact with chalk 4, has removed the injury that hand skin is subject to chalk from, does not need to clean chalk powder, cylinder 1 front end is provided with the annulus 3 with fold 5, convenient taking held, comfortable writing, and it is raw material that chalk sleeve be take cheap plastic foil and rubber, cost is low, can fold, easy to carry and store, be suitable for wide popularization and application.
Claims (2)
1. a chalk sleeve, it is characterized in that: comprise mainly cylinder (1) and the sphere (2) by soft plastic foil or cloth or elastomeric material, made, described cylinder (1) and sphere (2) are as a whole, cylinder (1) diameter is 15-17mm, cylinder (1) length is 50-100mm, sphere (2) is positioned at cylinder (1) rear end and extends backward, and sphere (2) diameter is 15-17mm.
2. chalk sleeve according to claim 1, is characterized in that: on the surface of above-mentioned cylinder (1) front end, being provided with length is the rubber rounding ring (3) of 20-50mm, and annulus surface is provided with the convenient fold (5) of holding of taking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420180654.2U CN203864230U (en) | 2014-04-15 | 2014-04-15 | Chalk sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420180654.2U CN203864230U (en) | 2014-04-15 | 2014-04-15 | Chalk sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203864230U true CN203864230U (en) | 2014-10-08 |
Family
ID=51645212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420180654.2U Expired - Fee Related CN203864230U (en) | 2014-04-15 | 2014-04-15 | Chalk sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203864230U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105196741A (en) * | 2015-10-02 | 2015-12-30 | 刘乐凝 | Chalk with protecting bushes |
| CN108656789A (en) * | 2018-05-24 | 2018-10-16 | 真彩文具股份有限公司 | It squeezes out core type solid and draws stick |
-
2014
- 2014-04-15 CN CN201420180654.2U patent/CN203864230U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105196741A (en) * | 2015-10-02 | 2015-12-30 | 刘乐凝 | Chalk with protecting bushes |
| CN105196741B (en) * | 2015-10-02 | 2016-11-16 | 刘乐凝 | A kind of chalk of band sheath |
| CN108656789A (en) * | 2018-05-24 | 2018-10-16 | 真彩文具股份有限公司 | It squeezes out core type solid and draws stick |
| CN108656789B (en) * | 2018-05-24 | 2023-11-21 | 真彩文具股份有限公司 | Extrusion core-out type solid drawing rod |
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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 |
Granted publication date: 20141008 Termination date: 20160415 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |