CN107521257A - A kind of multi-function chalk casing - Google Patents
A kind of multi-function chalk casing Download PDFInfo
- Publication number
- CN107521257A CN107521257A CN201710588840.8A CN201710588840A CN107521257A CN 107521257 A CN107521257 A CN 107521257A CN 201710588840 A CN201710588840 A CN 201710588840A CN 107521257 A CN107521257 A CN 107521257A
- Authority
- CN
- China
- Prior art keywords
- chalk
- annular
- axially extending
- side wall
- 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.)
- 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
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
- A45C11/00—Receptacles for purposes not provided for in groups A45C1/00-A45C9/00
- A45C11/34—Pencil boxes; Pencil etuis or the like
Landscapes
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
The invention discloses a kind of multi-function chalk casing, including bottom plate, multiple size identical circle pits are uniformly provided with the bottom plate, memory cell is removably installed in each pit, the memory cell includes lower chalk sleeve and upper chalk sleeve, and upper chalk sleeve surrounds a storage chamber for being used to store chalk with lower chalk sleeve.The present invention can either prevent chalk from being damaged in transportation, improve the utilization rate of chalk, and and can enough makes the skin of teacher avoid directly contacting with chalk when in use, be advantageous to keep environmental sanitation.The present invention is simple in construction, has larger exploitativeness.
Description
Technical field
The present invention relates to chalk holder technical field, specifically a kind of multi-function chalk casing.
Background technology
Chalk is instrument widely used in daily life, is for general on blackboard and writes.The chalk in ancient times is generally used
Natural chalk is made, but uses other material substitutions now.The composition of chalk is a kind of white depositions of calcium sulfate, no
Easily it is decomposed, particle is bigger than dust.The chalk main component that the country uses is calcium carbonate (lime stone) and calcium sulfate (stone
Cream), or containing a small amount of calcium oxide.
Chalk is crisp, is very easy to fracture, and produces in transportation or easily and fractures during use, and uses
When, when teacher holds chalk-writing, many chalk dusts can be stained with hand, when the hand for speckling with chalk dust goes to touch other articles
When, it can also it is stained with chalk dust, very big puzzlement is brought to user.
The content of the invention
According to above the deficiencies in the prior art, the technical problems to be solved by the invention are to propose a kind of multifunctional chalk
Set, can either effectively prevent damage of the chalk in transportation, and can enough facilitates librarian use, avoids chalk dust from sticking in hand
On.
The present invention is solved its technical problem and realized using following technical scheme：
A kind of multi-function chalk casing, including bottom plate, multiple size identical circle pits are uniformly provided with the bottom plate, often
Memory cell is removably installed, the memory cell includes lower chalk sleeve and upper chalk sleeve, upper chalk sleeve in individual pit
A storage chamber for being used to store chalk is surrounded with lower chalk sleeve.
As preferable, the lower chalk sleeve includes first annular side wall, and first annular side wall can be entrenched in circular base
In hole, the bottom of first annular side wall is provided with the fixation bottom wall perpendicular with first annular side wall.
As preferable, the first annular side wall is integrally formed with fixed bottom wall.
As preferable, the upper chalk sleeve includes the second annular sidewall, and the top of the second annular sidewall is provided with removable
Movable bottom wall, the second annular sidewall is provided with multiple equally distributed second axially extending bores, and one end of the second axially extending bore is prolonged
The bottom of the second annular sidewall is reached, making the second axially extending bore, the bottom of the second annular sidewall is by the second axial direction in not closed form
Through hole is divided into multiple clamp clips.
As preferable, the movable bottom wall includes pushing plate, sliding block and slide block, and pushing plate is arranged on the second annular side
In wall, slide block is arranged on the outside of the second annular sidewall, and sliding block is used to connect pushing plate and slide block, is opened on the second annular sidewall
There is the first axially extending bore, sliding block is moveably mounted in the first axially extending bore.
As preferable, the thickness of the longitudinal cross-section of the clamp clip is gradually thickening from top to bottom, the second annular sidewall
Outside is also cased with the annular pushing block of the clamping degree for adjusting clamp clip, and the inwall of annular pushing block and the outer wall of clamp clip are affixed
Close.
As preferable, the top of the lower chalk sleeve is provided with internal thread, and the bottom of upper chalk sleeve is provided with and internal thread phase
The external screw thread of matching.
The beneficial effects of the invention are as follows：
The present invention can either prevent chalk from being damaged in transportation, improve the utilization rate of chalk, and can is enough when in use
Make the skin of teacher avoid directly contacting with chalk, be advantageous to keep environmental sanitation.The present invention is simple in construction, can with larger
Implementation.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is the front view of the embodiment of the present invention；
Fig. 2 is the dimensional structure diagram of the embodiment of the present invention；
Fig. 3 is the dimensional structure diagram of the upper chalk sleeve of the present invention；
Fig. 4 is the partial schematic diagram of the upper chalk sleeve and the connecting portion of lower chalk sleeve of the present invention.
In figure：1- bottom plates, the first annular side walls of 2-, the annular sidewalls of 3- second, the axially extending bores of 4- first, 5- activity bottom walls,
The axially extending bores of 6- second, 7- clamp clips, 8- annular pushing blocks.
Embodiment
Below by the description to embodiment, the shape of for example involved each component of embodiment of the invention, structure
Make, the mutual alignment between each several part and annexation, the effect of each several part and operation principle, manufacturing process and the side of operating with
Method etc., is described in further detail, completeer to help those skilled in the art to have inventive concept of the invention, technical scheme
Whole, accurate and deep understanding.
As shown in Figures 1 to 4, a kind of multi-function chalk casing, including bottom plate 1, it is identical that multiple sizes are uniformly provided with bottom plate 1
Circular pit, memory cell is removably installed in each pit, memory cell includes lower chalk sleeve and upper chalk sleeve,
Upper chalk sleeve surrounds a storage chamber for being used to store chalk with lower chalk sleeve, and the lower chalk sleeve includes first annular side wall 2,
First annular side wall 2 can be entrenched in circular pit, and the bottom of first annular side wall 2 is provided with hangs down with the first annular phase of side wall 2
Straight fixation bottom wall, first annular side wall 2 are integrally formed with fixed bottom wall, and the top of first annular side wall 2 is provided with interior spiral shell
Line.The upper chalk sleeve includes the second annular sidewall 3, and the bottom of the second annular sidewall 3 is provided with the outer spiral shell to match with internal thread
Line, the top of the second annular sidewall 3 are provided with moveable bottom wall 5, and movable bottom wall 5 includes pushing plate, sliding block and slide block,
Pushing plate is arranged in the second annular sidewall 3, and for promoting chalk to be moved in storage chamber, slide block is arranged on the second annular side
The outside of wall 3, sliding block are used to connect pushing plate and slide block, the first axially extending bore 4 are provided with the second annular sidewall 3, sliding block is removable
Dynamic is arranged in the first axially extending bore 4, and the second axial direction that the second annular sidewall 3 is provided with multiple equally distributed strips is logical
Hole 6, one end of the second axially extending bore 6 extend to the bottom of the second annular sidewall 3, make the second axially extending bore 6 in not closed form, the
The bottom of second ring side wall 3 is divided into multiple clamp clips 7, the thickness of the longitudinal cross-section of the clamp clip 7 by the second axially extending bore 6
It is gradually thickening from top to bottom, the outside of the second annular sidewall 3 is also cased with the annular of the clamping degree for adjusting clamp clip 7
Pushing block 8, the outer wall of the inwall and clamp clip 7 of annular pushing block 8 fit.
The present invention operation principle be：During manufacturer production, chalk is stored in upper chalk sleeve and what lower chalk sleeve surrounded deposits
In storage chamber, then the memory cell equipped with chalk is put into circular pit, can be good at preventing chalk in transportation
Fracture is produced, in use, taking out a memory cell, lower chalk sleeve is backed out, promotes annular pushing block 8, clamp clip 7 is clamped powder
Pen, when needing adjustment to expose the length of upper chalk sleeve, annular pushing block 8 is unclamped, section chalk is exposed in the adjustment of promotion activity bottom wall 5
Length, annular pushing block 8 is then promoted, clamp clip 7 is clamped chalk.The present invention can either prevent chalk from being damaged in transportation
It is bad, the utilization rate of chalk is improved, and can enough makes the skin of teacher avoid directly contacting with chalk, is advantageous to retaining ring when in use
Border health.The present invention is simple in construction, has larger exploitativeness.
The present invention is exemplarily described above, it is clear that present invention specific implementation is not subject to the restrictions described above,
As long as employing the improvement of the various unsubstantialities of inventive concept and technical scheme of the present invention progress, or not improved this is sent out
Bright design and technical scheme directly applies to other occasions, within protection scope of the present invention.The protection of the present invention
Scope should be determined by the scope of protection defined in the claims.
Claims (7)
- A kind of 1. multi-function chalk casing, it is characterised in that：Including bottom plate, multiple size identical circles are uniformly provided with the bottom plate Shape pit, memory cell being removably installed in each pit, the memory cell includes lower chalk sleeve and upper chalk sleeve, Upper chalk sleeve surrounds a storage chamber for being used to store chalk with lower chalk sleeve.
- 2. multi-function chalk casing according to claim 1, it is characterised in that：The lower chalk sleeve includes first annular side Wall, first annular side wall can be entrenched in circular pit, and the bottom of first annular side wall is provided with mutually hangs down with first annular side wall Straight fixation bottom wall.
- 3. multi-function chalk casing according to claim 2, it is characterised in that：The first annular side wall is with fixed bottom wall Integrally formed.
- 4. multi-function chalk casing according to claim 1, it is characterised in that：The upper chalk sleeve includes the second annular side Wall, the top of the second annular sidewall are provided with moveable bottom wall, and the second annular sidewall is provided with multiple equally distributed the Two axially extending bores, one end of the second axially extending bore extend to the bottom of the second annular sidewall, and it is in not close to make the second axially extending bore Shape, the bottom of the second annular sidewall are divided into multiple clamp clips by the second axially extending bore.
- 5. multi-function chalk casing according to claim 4, it is characterised in that：The movable bottom wall includes pushing plate, sliding block And slide block, pushing plate are arranged in the second annular sidewall, slide block is arranged on the outside of the second annular sidewall, and sliding block is used to connect Pushing plate and slide block, the first axially extending bore are provided with the second annular sidewall, sliding block is moveably mounted to the first axially extending bore It is interior.
- 6. multi-function chalk casing according to claim 4, it is characterised in that：The thickness of the longitudinal cross-section of the clamp clip is certainly Upper and lower gradually thickening, the outside of the second annular sidewall is also cased with the annular pushing block of the clamping degree for adjusting clamp clip, ring The inwall of shape pushing block and the outer wall of clamp clip fit.
- 7. multi-function chalk casing according to claim 1, it is characterised in that：The top of the lower chalk sleeve is provided with interior spiral shell Line, the bottom of upper chalk sleeve are provided with the external screw thread to match with internal thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710588840.8A CN107521257A (en) | 2017-07-19 | 2017-07-19 | A kind of multi-function chalk casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710588840.8A CN107521257A (en) | 2017-07-19 | 2017-07-19 | A kind of multi-function chalk casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107521257A true CN107521257A (en) | 2017-12-29 |
Family
ID=60748939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710588840.8A Pending CN107521257A (en) | 2017-07-19 | 2017-07-19 | A kind of multi-function chalk casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107521257A (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2277905A (en) * | 1993-05-11 | 1994-11-16 | Grogan John J | Sleeve for chalk |
| CN201304792Y (en) * | 2008-04-29 | 2009-09-09 | 深圳市翠北小学 | Chalk protector for teaching use |
| CN201456687U (en) * | 2009-05-20 | 2010-05-12 | 上海市黄浦区新凌小学 | Adjustable type chalk holder |
| CN201592584U (en) * | 2009-11-30 | 2010-09-29 | 李传永 | Full automatic chalk holding sleeve |
| CN201646086U (en) * | 2010-05-04 | 2010-11-24 | 王国香 | Chalk sleeve |
| CN201728943U (en) * | 2010-05-12 | 2011-02-02 | 朱涛 | Chalk sleeve |
| CN201824686U (en) * | 2010-09-15 | 2011-05-11 | 珠海市俊凯机械科技有限公司 | Dust-free chalk sleeve |
| CN202517903U (en) * | 2012-04-15 | 2012-11-07 | 王相来 | Chalk sleeve for teaching |
| CN202608321U (en) * | 2012-01-20 | 2012-12-19 | 浙江工商职业技术学院 | Chalk sleeve |
| CN203472335U (en) * | 2013-06-21 | 2014-03-12 | 宁波大学科学技术学院 | Chalk cover |
| CN204020300U (en) * | 2014-06-26 | 2014-12-17 | 李玲 | A kind of chalk economizing device |
| CN204169248U (en) * | 2014-06-28 | 2015-02-25 | 李麦莲 | A kind of Portable chalk accommodation device |
| CN204222449U (en) * | 2014-11-03 | 2015-03-25 | 杨子璇 | A kind of Manual adjustable chalk sleeve |
| CN204236061U (en) * | 2014-08-29 | 2015-04-01 | 中州大学 | A kind of Multipurpose chalk cover |
-
2017
- 2017-07-19 CN CN201710588840.8A patent/CN107521257A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2277905A (en) * | 1993-05-11 | 1994-11-16 | Grogan John J | Sleeve for chalk |
| CN201304792Y (en) * | 2008-04-29 | 2009-09-09 | 深圳市翠北小学 | Chalk protector for teaching use |
| CN201456687U (en) * | 2009-05-20 | 2010-05-12 | 上海市黄浦区新凌小学 | Adjustable type chalk holder |
| CN201592584U (en) * | 2009-11-30 | 2010-09-29 | 李传永 | Full automatic chalk holding sleeve |
| CN201646086U (en) * | 2010-05-04 | 2010-11-24 | 王国香 | Chalk sleeve |
| CN201728943U (en) * | 2010-05-12 | 2011-02-02 | 朱涛 | Chalk sleeve |
| CN201824686U (en) * | 2010-09-15 | 2011-05-11 | 珠海市俊凯机械科技有限公司 | Dust-free chalk sleeve |
| CN202608321U (en) * | 2012-01-20 | 2012-12-19 | 浙江工商职业技术学院 | Chalk sleeve |
| CN202517903U (en) * | 2012-04-15 | 2012-11-07 | 王相来 | Chalk sleeve for teaching |
| CN203472335U (en) * | 2013-06-21 | 2014-03-12 | 宁波大学科学技术学院 | Chalk cover |
| CN204020300U (en) * | 2014-06-26 | 2014-12-17 | 李玲 | A kind of chalk economizing device |
| CN204169248U (en) * | 2014-06-28 | 2015-02-25 | 李麦莲 | A kind of Portable chalk accommodation device |
| CN204236061U (en) * | 2014-08-29 | 2015-04-01 | 中州大学 | A kind of Multipurpose chalk cover |
| CN204222449U (en) * | 2014-11-03 | 2015-03-25 | 杨子璇 | A kind of Manual adjustable chalk sleeve |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171229 |