CN104802568A - Novel chalk - Google Patents
Novel chalk Download PDFInfo
- Publication number
- CN104802568A CN104802568A CN201510238620.3A CN201510238620A CN104802568A CN 104802568 A CN104802568 A CN 104802568A CN 201510238620 A CN201510238620 A CN 201510238620A CN 104802568 A CN104802568 A CN 104802568A
- Authority
- CN
- China
- Prior art keywords
- chalk
- sleeve
- novel
- novel chalk
- round boss
- 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
- B43K19/003—Chalks
Landscapes
- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
Abstract
The invention discloses a piece of novel chalk. The novel chalk comprises a cylindrical chalk body, wherein a round lug boss is arranged on the lower part of the cylindrical chalk body; external screw threads are formed on the round lug boss; the round lug boss is aligned to a sleeve with internal screw threads of a novel chalk sleeve; after being tightly screwed, the round lug boss can be moved upwards or downwards in the inner pipe of the chalk sleeve; the height size of the round lug boss is 0.5 to 1.0cm. After the novel chalk is matched with the novel chalk sleeve, the novel chalk is not easily broken and can be conveniently used for writing, and waste can also be reduced.
Description
Technical field
The present invention relates to chalk technical field, especially a kind of novel chalk.
Background technology
Existing chalk is generally the truncated cone-shaped that is thick, is thin, by calcium sulfate, calcium carbonate and a small amount of calcium chloride add water stir into pasty state, injection molding after drying form.Because chalk is hard and crisp, be easy to when writing fracture.Meanwhile, be difficult to pinch use during a remaining little budgust, cause the waste that chalk is larger.
On 05 12nd, 2015, inventor have submitted the patent application that is called " a kind of novel chalk casing ".The main technical schemes of this application is: the internal diameter of chalk sleeve outer tube lower end of pipe in chalk sleeve is radially provided with round turntable, is provided with screw rod in the screwed hole in the axle center of round turntable; Top and the tapped sleeve of screw rod are into a single integrated structure, and sleeve coordinates with the external screw thread of the round boss of the bottom of chalk body and connects; The outer, footpath of sleeve is axially arranged with two symmetries, uniform raised line, in the elongated slot that the inwall wall thickness part that raised line embeds pipe in chalk sleeve is respectively arranged vertically, elongated slot terminates in the interior pipe clamp ring place of the lower end of pipe in chalk sleeve, and elongated slot communicates with the top of pipe in chalk sleeve.After the present invention and novel chalk support the use, the round boss of novel chalk and sleeve are screwed, novel chalk can move up or down in pipe in chalk sleeve, not frangibility, conveniently writes, and can also cut the waste.
Summary of the invention
The object of this invention is to provide a kind of support the use with novel chalk casing after not frangibility, the chalk conveniently writing, can also cut the waste.
Technical scheme of the present invention is: a kind of novel chalk comprising cylindrical chalk body, the bottom of described cylindrical chalk body is provided with round boss, described round boss is provided with external screw thread, round boss is aimed at the tapped sleeve of novel chalk casing, can move up or down in pipe in chalk sleeve after screwing.
The height dimension of described round boss is 0.5-1.0cm.
Because the bottom of cylindrical chalk body is provided with round boss, round boss is provided with external screw thread, and after supporting the use with novel chalk casing, novel chalk is frangibility not, conveniently writes, and can also cut the waste.
Accompanying drawing explanation
Concrete structure of the present invention is provided by following embodiment and accompanying drawing thereof.
Fig. 1 is the structural representation of concrete structure of a kind of novel chalk proposed according to the present invention.
Fig. 2 is a kind of structural representation of concrete structure of novel chalk casing.
In figure, (1) is chalk body, and (3), for managing in chalk sleeve, (4) are sleeve, and (12) are round boss, and (13) are external screw thread.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described further.
Embodiment: as shown in Figure 1 and Figure 2, comprise a kind of novel chalk of cylindrical chalk body (1), the bottom of cylindrical chalk body (1) is provided with round boss (12), round boss (12) is provided with external screw thread (13), round boss (12) is aimed at the tapped sleeve (4) of novel chalk casing, can manage in (3) in chalk sleeve after screwing and move up or down.
The height dimension of round boss (12) is 0.8cm.
Working condition of the present invention is: aimed at by round boss of the present invention and screw with the sleeve of novel chalk casing, can move up or down in chalk sleeve.
Claims (2)
1. a novel chalk, comprise cylindrical chalk body (1), it is characterized in that: the bottom of described cylindrical chalk body (1) is provided with round boss (12), described round boss (12) is provided with external screw thread (13), round boss (12) is aimed at the tapped sleeve (4) of novel chalk casing, can manage in (3) in chalk sleeve after screwing and move up or down.
2. a kind of novel chalk according to claim 1, is characterized in that, the height dimension of described round boss (12) is 0.5-1.0cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510238620.3A CN104802568A (en) | 2015-05-12 | 2015-05-12 | Novel chalk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510238620.3A CN104802568A (en) | 2015-05-12 | 2015-05-12 | Novel chalk |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104802568A true CN104802568A (en) | 2015-07-29 |
Family
ID=53687926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510238620.3A Pending CN104802568A (en) | 2015-05-12 | 2015-05-12 | Novel chalk |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104802568A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004195671A (en) * | 2002-12-16 | 2004-07-15 | Pilot Precision Co Ltd | Solid drawing material delivering container |
| CN2858302Y (en) * | 2005-12-27 | 2007-01-17 | 高静 | Lifting chalk |
| CN2923348Y (en) * | 2006-06-19 | 2007-07-18 | 张添格 | Chalk cover |
| CN201350749Y (en) * | 2008-12-25 | 2009-11-25 | 上海市闸北区中小学科技指导站 | Precession type chalk sleeve |
| CN102310690A (en) * | 2010-06-30 | 2012-01-11 | 上海市嘉定区南翔小学 | Manufacture method for chalk with telescopic holding handle |
| CN202345107U (en) * | 2011-10-18 | 2012-07-25 | 陕西科技大学 | Pencil |
| JP2013094319A (en) * | 2011-10-31 | 2013-05-20 | Umajirushi:Kk | Delivery holder for stick-shaped solid |
| CN203032154U (en) * | 2012-12-14 | 2013-07-03 | 高芯莹 | Chalk cap |
| CN203254815U (en) * | 2013-04-12 | 2013-10-30 | 杜绍诗 | Multifunctional chalk coat |
| CN203876427U (en) * | 2014-06-20 | 2014-10-15 | 攀枝花学院 | Chalk holder |
| CN204263753U (en) * | 2014-11-27 | 2015-04-15 | 满敬涛 | A kind of chalk sleeve being convenient to write |
| CN204586203U (en) * | 2015-05-12 | 2015-08-26 | 罗福仲 | A kind of novel chalk |
-
2015
- 2015-05-12 CN CN201510238620.3A patent/CN104802568A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004195671A (en) * | 2002-12-16 | 2004-07-15 | Pilot Precision Co Ltd | Solid drawing material delivering container |
| CN2858302Y (en) * | 2005-12-27 | 2007-01-17 | 高静 | Lifting chalk |
| CN2923348Y (en) * | 2006-06-19 | 2007-07-18 | 张添格 | Chalk cover |
| CN201350749Y (en) * | 2008-12-25 | 2009-11-25 | 上海市闸北区中小学科技指导站 | Precession type chalk sleeve |
| CN102310690A (en) * | 2010-06-30 | 2012-01-11 | 上海市嘉定区南翔小学 | Manufacture method for chalk with telescopic holding handle |
| CN202345107U (en) * | 2011-10-18 | 2012-07-25 | 陕西科技大学 | Pencil |
| JP2013094319A (en) * | 2011-10-31 | 2013-05-20 | Umajirushi:Kk | Delivery holder for stick-shaped solid |
| CN203032154U (en) * | 2012-12-14 | 2013-07-03 | 高芯莹 | Chalk cap |
| CN203254815U (en) * | 2013-04-12 | 2013-10-30 | 杜绍诗 | Multifunctional chalk coat |
| CN203876427U (en) * | 2014-06-20 | 2014-10-15 | 攀枝花学院 | Chalk holder |
| CN204263753U (en) * | 2014-11-27 | 2015-04-15 | 满敬涛 | A kind of chalk sleeve being convenient to write |
| CN204586203U (en) * | 2015-05-12 | 2015-08-26 | 罗福仲 | A kind of novel chalk |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150729 |