CN107718938A - Chalk sleeve - Google Patents
Chalk sleeve Download PDFInfo
- Publication number
- CN107718938A CN107718938A CN201610658810.5A CN201610658810A CN107718938A CN 107718938 A CN107718938 A CN 107718938A CN 201610658810 A CN201610658810 A CN 201610658810A CN 107718938 A CN107718938 A CN 107718938A
- 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
- B43K23/00—Holders or connectors for writing implements; Means for protecting the writing-points
- B43K23/016—Holders for crayons or chalks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K24/00—Mechanisms for selecting, projecting, retracting or locking writing units
- B43K24/02—Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions
- B43K24/06—Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions operated by turning means
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
Chalk sleeve of the present invention, it is related to a kind of teaching aid.It is characterized in that described chalk sleeve is made up of overcoat, inner sleeve and lifting set；Inner sleeve is loaded in overcoat by pin, and free to rotate；Lifting is set in inner sleeve.The present invention has the characteristics that structure novelty, simple processing, cost are cheap, easy to use, elegant in appearance, therefore belongs to a kind of novel chalk casing for integrating economy and practicality.
Description
Technical field
Chalk sleeve of the present invention, it is related to a kind of teaching aid.
Background technology
During currently the majority school or old-fashioned blackboard is, it is necessary to use chalk-writing.Chalk-writing is used in teacher
When, substantial amounts of chalk bits can be stained with hand, when hand touches other articles（Books, lectern, clothes etc.）Shi Douhui leaves chalk bits
Vestige, it is both unsightly or unhygienic, and chalk bits also pole not easy cleaning, to teacher give lessons and live bring it is great not
Just.For it is above-mentioned the problems of in the prior art, a kind of new chalk sleeve of research and design, so as to overcome in the prior art
The problems of be very necessary.
The content of the invention
In view of it is above-mentioned the problems of in the prior art, the purpose of the present invention is a kind of new chalk of research and design
Set.To solve present in prior art：It is that can speckle with substantial amounts of chalk with hand during chalk-writing writing on the blackboard to consider to be worth doing, these chalks
Bits can touch other articles with teacher's hand and stay on these objects, both unsightly or unhygienic, to giving lessons for teacher
And life brings the problems such as great inconvenient.
What the technical solution of the present invention was realized in：
Chalk sleeve of the present invention；It is characterized in that described chalk sleeve is made up of overcoat, inner sleeve and lifting set；Inner sleeve is led to
Pin is crossed to be loaded in overcoat, and it is free to rotate；Lifting is set in inner sleeve.
Spiral slide is machined with outer casing inner wall of the present invention.
Put in of the present invention and be machined with chute, the bottom position of chute is the bottom of spiral slide, the top of chute
Portion is slightly above the top of spiral slide.
The external wall of upper portion of inner sleeve of the present invention designs for inside radian.
The outer wall bottom of lifting set of the present invention is machined with sliding block, and sliding block is loaded in chute, and is matched somebody with somebody with spiral slide
Close and use.
Lifting set top of the present invention is machined with ledge for chalk on blackboard, and cushion is housed on the inwall of ledge for chalk on blackboard.
During using the present invention, chalk is inserted into ledge for chalk on blackboard, due to having cushion in ledge for chalk on blackboard, can be allowed such as different thicknesses
Chalk；Inner-outer sleeve is rotated against, lifting can be made to be enclosed on spiral slide internal rotation and moved up and down in chute, is lifting set
Chalk is driven to rise or fall；Using being to rise, due to need not directly hold chalk, the chalk bits fallen within hand can be seldom；
The used time does not close at chalk in chalk sleeve, and protection chalk will not be broken.
It is an advantage of the invention that it will be apparent that it is mainly manifested in：
The present invention has been used, has reduced the quantity that chalk bits fall within hand；
The present invention has been used, chalk can have been closed at when not in use in chalk sleeve, has avoided chalk fracture from causing to waste；
Because ledge for chalk on blackboard of the present invention is built with cushion, so the chalk for being applicable various thicknesses uses.
The present invention has the advantages that structure novelty, simple processing, cost are cheap, easy to use, elegant in appearance, its high-volume
Positive social benefit and significant economic benefit will be produced by putting goods on the market.
Brief description of the drawings
The present invention shares 1 width accompanying drawing, wherein：
The schematic structural view of the invention of accompanying drawing 1.
In figure：1st, ledge for chalk on blackboard 2, cushion 3, lifting set 4, inner sleeve 5, sliding block 6, chute 7, spiral slide 8, outer
Set 9, pin.
Embodiment
The present invention specific embodiment as shown in drawings, it is characterised in that described chalk sleeve by overcoat 8, inner sleeve 4 and
Lifting set 3 is formed；Inner sleeve 4 is loaded in overcoat 8 by pin 9, and free to rotate；Lifting set 3 is loaded on inner sleeve
In 4.
Spiral slide 7 is machined with the inwall of overcoat 8.
Chute 6 is machined with inner sleeve 4, the bottom position of chute 6 is the bottom of spiral slide 7, chute 6
Top is slightly above the top of spiral slide 7.
The external wall of upper portion of inner sleeve 4 designs for inside radian.
The outer wall bottom of lifting set 3 is machined with sliding block 5, sliding block 5 loaded in chute 6, and with spiral slide 7
It is used cooperatively.
3 tops of lifting set are machined with ledge for chalk on blackboard 1, and cushion 2 is housed on the inwall of ledge for chalk on blackboard 1.
It is described above, it is only the preferable embodiment of the present invention, but protection scope of the present invention is not limited to
This, all those familiar with the art are in technical scope disclosed by the invention, technique according to the invention scheme
And its design of the present invention is subject to equivalent substitution or changed to be included within the scope of the present invention.
Claims (6)
- A kind of 1. chalk sleeve；It is characterized in that described chalk sleeve is by overcoat（8）, inner sleeve（4）Lifting set（3）Formed；It is interior Set（4）Pass through pin（9）Loaded on overcoat（8）It is interior and free to rotate；Lifting set（3）Loaded on inner sleeve（4）In.
- 2. the chalk sleeve according to claim 1, it is characterised in that described overcoat（8）Spiral slide is machined with inwall （7）.
- 3. the chalk sleeve according to claim 1, it is characterised in that described inner sleeve（4）On be machined with chute（6）, chute （6）Bottom position be spiral slide（7）Bottom, chute（6）Top be slightly above spiral slide（7）Top.
- 4. the chalk sleeve according to claim 1, it is characterised in that described inner sleeve（4）External wall of upper portion be inside arc Degree design.
- 5. the chalk sleeve according to claim 1, it is characterised in that described lifting set（3）Outer wall bottom be machined with cunning Block（5）, sliding block（5）Loaded on chute（6）It is interior, and and spiral slide（7）It is used cooperatively.
- 6. the chalk sleeve according to claim 1, it is characterised in that described lifting set（3）Top is machined with ledge for chalk on blackboard （1）, in ledge for chalk on blackboard（1）Inwall on cushion is housed（2）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610658810.5A CN107718938A (en) | 2016-08-12 | 2016-08-12 | Chalk sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610658810.5A CN107718938A (en) | 2016-08-12 | 2016-08-12 | Chalk sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107718938A true CN107718938A (en) | 2018-02-23 |
Family
ID=61200565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610658810.5A Pending CN107718938A (en) | 2016-08-12 | 2016-08-12 | Chalk sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107718938A (en) |
-
2016
- 2016-08-12 CN CN201610658810.5A patent/CN107718938A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204631827U (en) | A kind of portable handwriting pad | |
| CN107718938A (en) | Chalk sleeve | |
| CN104669832A (en) | Chalk sleeve | |
| CN203849684U (en) | Multifunctional computer keyboard | |
| CN202337158U (en) | Pen container | |
| CN204894845U (en) | Multifunctional pen remembers this | |
| CN205112765U (en) | Novel multi -functional compasses chi | |
| CN203142217U (en) | Practical pen container | |
| CN204904211U (en) | Modular folding keyboard suit | |
| CN201958165U (en) | Lift desk | |
| CN206141142U (en) | Can hold cell -phone note book | |
| CN205180736U (en) | Special desk of lawyer | |
| CN206718865U (en) | Magnetic drawing | |
| CN209257733U (en) | A kind of portable removable pen and ink seal box | |
| CN202680915U (en) | Multipurpose pen bag | |
| CN204245487U (en) | A kind of desk | |
| CN202463240U (en) | Simple book pocket | |
| CN205439719U (en) | Multifunctional correcting tape | |
| CN205913062U (en) | Multi -functional stationery box of folded cascade | |
| CN205125368U (en) | Easy -to -take chalk box | |
| CN209518691U (en) | A kind of portable spoon | |
| CN208452627U (en) | A kind of junior school student learns by oneself card holder in English | |
| CN208102723U (en) | A kind of Portable gift wine box | |
| CN205220130U (en) | Chalk cover is held to vase formula | |
| CN206548105U (en) | A kind of library's reading tables |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180223 |