CN104669832A - Chalk sleeve - Google Patents
Chalk sleeve Download PDFInfo
- Publication number
- CN104669832A CN104669832A CN201310639966.5A CN201310639966A CN104669832A CN 104669832 A CN104669832 A CN 104669832A CN 201310639966 A CN201310639966 A CN 201310639966A CN 104669832 A CN104669832 A CN 104669832A
- Authority
- CN
- China
- Prior art keywords
- chalk
- sleeve
- inner sleeve
- chute
- present
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K19/00—Non-propelling pencils; Styles; Crayons; Chalks
- B43K19/14—Sheathings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K23/00—Holders or connectors for writing implements; Means for protecting the writing-points
- B43K23/016—Holders for crayons or chalks
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
The invention discloses a chalk sleeve, and relates to a teaching tool. The chalk sleeve is characterized in that the chalk sleeve comprises an outer sleeve, an inner sleeve and a lifting sleeve, the inner sleeve is pinned in the outer sleeve and can freely rotate, and the lifting sleeve is mounted in the inner sleeve. The chalk sleeve has the advantages of novel structure, processing simplicity and convenience, low cost, convenience in use, attractiveness, elegance and the like, and belongs to novel chalk sleeves integrating economical efficiency and practicability.
Description
Technical field
Chalk sleeve of the present invention, relates to a kind of teaching aid.
Background technology
Still old-fashioned blackboard during present most of school, needs to use chalk-writing.When teacher uses chalk-writing, a large amount of chalk bits can be stained with on hand, when hand touches the vestige that other article (books, lectern, clothes etc.) Shi Douhui leaves chalk bits, both unsightly also unhygienic, and chalk bits also pole not easy cleaning, giving lessons and living and bring great inconvenience to teacher.For problem existing in above-mentioned prior art, a kind of novel chalk sleeve of research and design, thus the problem existing for overcoming in prior art is very necessary.
Summary of the invention
In view of problem existing in above-mentioned prior art, the object of the invention is a kind of novel chalk sleeve of research and design.Exist in prior art in order to solve: be can speckle with a large amount of chalk bits with hand during chalk-writing writing on the blackboard, these chalk bits can touch other article along with teacher's hand and stay on these objects, both unsightly also unhygienic, to the problems such as bringing inconvenience greatly of giving lessons and live of teacher.
Technical solution of the present invention is achieved in that
Chalk sleeve of the present invention; It is characterized in that described chalk sleeve is made up of overcoat, inner sleeve and lifting cover; Inner sleeve is loaded in overcoat by pin, and free to rotate; Lifting is set in inner sleeve.
Outer casing inner wall of the present invention is processed with spiral slide.
Put in of the present invention and be processed with chute, the bottom position of chute is the bottom of spiral slide, and the top of chute is a little more than the top of spiral slide.
The external wall of upper portion of inner sleeve of the present invention is inside radian design.
Of the present invention lifting cover outer wall bottom be processed with slide block, slide block is loaded in chute, and with spiral slide with the use of.
Lifting cover top of the present invention is processed with ledge for chalk on blackboard, and the inwall of ledge for chalk on blackboard is equipped with cushion.
When using of the present invention, chalk is inserted in ledge for chalk on blackboard, owing to having cushion in ledge for chalk on blackboard, chalk as different thicknesses can be allowed; Relative rotation inner-outer sleeve, can make lifting be enclosed within spiral slide and rotate and move up and down in chute, is that lifting cover drives chalk rise or fall; Use is risen, and owing to not needing direct hand-held chalk, the chalk bits fallen within hand can be seldom; Chalk does not close in chalk sleeve by the used time, and protection chalk can not break.
Advantage of the present invention is apparent, is mainly manifested in:
1, employ the present invention, decrease the quantity that chalk bits fall within hand;
2, employing the present invention, can chalk be closed in chalk sleeve when not using, avoid chalk to rupture and cause waste;
3, because ledge for chalk on blackboard of the present invention is built with cushion, so the chalk being suitable for various thickness uses.
The present invention has novel structure, processes the advantages such as easy, with low cost, easy to use, elegant in appearance, and it puts goods on the market in enormous quantities and will produce positive social benefit and significant economic benefit.
Accompanying drawing explanation
The present invention has 1 width accompanying drawing, wherein:
Accompanying drawing 1 structural representation of the present invention.
In the drawings: 1, ledge for chalk on blackboard 2, cushion 3, lifting cover 4, inner sleeve 5, slide block 6, chute 7, spiral slide 8, overcoat 9, pin.
Detailed description of the invention
Specific embodiments of the invention as shown in drawings, is characterized in that described chalk sleeve is made up of overcoat 8, inner sleeve 4 and lifting cover 3; Inner sleeve 4 is loaded in overcoat 8 by pin 9, and free to rotate; Lifting cover 3 is loaded in inner sleeve 4.
Overcoat 8 inwall is processed with spiral slide 7.
Inner sleeve 4 is processed with chute 6, the bottom position of chute 6 is the bottom of spiral slide 7, and the top of chute 6 is a little more than the top of spiral slide 7.
The external wall of upper portion of inner sleeve 4 is inside radian design.
Lifting cover 3 outer wall bottom be processed with slide block 5, slide block 5 is loaded in chute 6, and with spiral slide 7 with the use of.
Lifting cover 3 top is processed with ledge for chalk on blackboard 1, and the inwall of ledge for chalk on blackboard 1 is equipped with cushion 2.
The above; be only preferably detailed description of the invention of the present invention; but protection scope of the present invention is not limited thereto; allly be familiar with those skilled in the art in technical scope disclosed by the invention, be equal to replace or change according to technical scheme of the present invention and design of the present invention thereof and all should be encompassed within protection scope of the present invention.
Claims (6)
1. a chalk sleeve; It is characterized in that described chalk sleeve is elevated cover (3) by overcoat (8), inner sleeve (4) and forms; Inner sleeve (4) is loaded in overcoat (8) by pin (9), and free to rotate; Lifting cover (3) is loaded in inner sleeve (4).
2. chalk sleeve according to claim 1, is characterized in that described overcoat (8) inwall is processed with spiral slide (7).
3. chalk sleeve according to claim 1, it is characterized in that described inner sleeve (4) is processed with chute (6), the bottom position of chute (6) is the bottom of spiral slide (7), and the top of chute (6) is a little more than the top of spiral slide (7).
4. chalk sleeve according to claim 1, is characterized in that the external wall of upper portion of described inner sleeve (4) is inside radian design.
5. chalk sleeve according to claim 1, it is characterized in that the outer wall bottom of described lifting cover (3) is processed with slide block (5), slide block (5) is loaded in chute (6), and with spiral slide (7) with the use of.
6. chalk sleeve according to claim 1, is characterized in that described lifting cover (3) top is processed with ledge for chalk on blackboard (1), the inwall of ledge for chalk on blackboard (1) is equipped with cushion (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310639966.5A CN104669832A (en) | 2013-11-29 | 2013-11-29 | Chalk sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310639966.5A CN104669832A (en) | 2013-11-29 | 2013-11-29 | Chalk sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104669832A true CN104669832A (en) | 2015-06-03 |
Family
ID=53305643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310639966.5A Pending CN104669832A (en) | 2013-11-29 | 2013-11-29 | Chalk sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104669832A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112706541A (en) * | 2020-12-22 | 2021-04-27 | 真彩文具股份有限公司 | Oil painting stick protective sleeve |
| CN113232440A (en) * | 2021-05-24 | 2021-08-10 | 陈红炜 | Pen casing |
-
2013
- 2013-11-29 CN CN201310639966.5A patent/CN104669832A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112706541A (en) * | 2020-12-22 | 2021-04-27 | 真彩文具股份有限公司 | Oil painting stick protective sleeve |
| CN113232440A (en) * | 2021-05-24 | 2021-08-10 | 陈红炜 | Pen casing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150603 |