CN204472227U - A kind of chalk holder - Google Patents
A kind of chalk holder Download PDFInfo
- Publication number
- CN204472227U CN204472227U CN201420827912.1U CN201420827912U CN204472227U CN 204472227 U CN204472227 U CN 204472227U CN 201420827912 U CN201420827912 U CN 201420827912U CN 204472227 U CN204472227 U CN 204472227U
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- China
- Prior art keywords
- chalk
- boost motor
- utility
- screw shell
- model
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- 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 discloses a kind of chalk holder, mainly comprise screw shell and chalk boost motor, it is characterized in that: inside described screw shell, be provided with internal thread, described chalk boost motor top is provided with boost motor cap, bottom is provided with external screw thread, the external screw thread of described chalk boost motor bottom matches with the internal thread inside screw shell, and described chalk boost motor is provided with center bottom outlet, and described center bottom outlet inwall is provided with the sheet metal of clamping chalk.The utility model structure is simple, easy to use, both improve the utilization rate of chalk end, and the hand of user does not directly contact chalk, reduces chalk to the stimulation of skin.
Description
Technical field
The utility model relates to schooling apparatus or teaching aid field, more particularly, relates to a kind of chalk holder.
Background technology
Tradition " writing on the blackboard " teaching has irreplaceable effect, and most of teacher be unable to do without chalk, but the existence of chalk own easily fractures, utilization rate is low, the shortcoming such as hand and clothing of very easily making dirty.At present, on market, existing chalk sleeve mainly adopts self-action pencil to send mode to, this pulsation send mode to, chalk is sent not smooth, easily stuck, during operation, needs chalk sleeve to touch the pillow pressing, use inconvenience, comfort level poor.Therefore, owing to there is above-mentioned technological deficiency in prior art, be those skilled in that art's technical problems urgently to be resolved hurrily.
Utility model content
The purpose of this utility model, for providing a kind of structure simple, easy to use, both improve the utilization rate of chalk end, and the hand of user does not directly contact chalk, reduces chalk to skin irritant chalk holder.
For achieving the above object, the utility model provides following technical scheme: a kind of chalk holder, mainly comprise screw shell and chalk boost motor, it is characterized in that: inside described screw shell, be provided with internal thread, described chalk boost motor top is provided with boost motor cap, and bottom is provided with external screw thread, and the external screw thread of described chalk boost motor bottom matches with the internal thread inside screw shell, described chalk boost motor is provided with center bottom outlet, and described center bottom outlet inwall is provided with the sheet metal of clamping chalk.
Usefulness of the present utility model is: the utility model structure is simple, easy to use, both improve the utilization rate of chalk end, and the hand of user does not directly contact chalk, reduces chalk to the stimulation of skin.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of chalk boost motor of the present utility model;
The structural representation of Fig. 3 screw shell of the present utility model.
In figure: 1 screw shell; 101 internal threads; 2 chalk boost motors; 201 sheet metals; 202 boost motor caps; 203 external screw threads.
Detailed description of the invention
It is simple that the utility model provides a kind of structure, easy to use, both improve the utilization rate of chalk end, and the hand of user directly do not contact chalk, reduces chalk to skin irritant chalk holder.
Below in conjunction with the accompanying drawing in the utility model embodiment, carry out clear and detailed description to the technical scheme in the utility model embodiment, obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making other embodiments all obtained under creative work prerequisite, all belong to the scope of the utility model protection.
A kind of chalk holder as shown in Figure 1, 2, 3, mainly comprise screw shell 1 and chalk boost motor 2, internal thread 101 is provided with inside described screw shell 1, described chalk boost motor 2 top is provided with boost motor cap 202, bottom is provided with external screw thread 203, the external screw thread 203 of described chalk boost motor 2 bottom matches with the internal thread 101 inside screw shell 1, and described chalk boost motor 2 is provided with center bottom outlet, and described center bottom outlet inwall is provided with the sheet metal 201 of clamping chalk.
The course of work of the present utility model: in use, inside the sheet metal 201 chalk or chalk end clip being held in the clamping chalk of the center bottom outlet inwall of chalk boost motor 2, external screw thread 203 on dependence chalk boost motor 2 coordinates with the internal thread 101 inside screw shell 1, chalk boost motor 2 is screwed in screw shell 1, until the other end of chalk from screw shell 1 is exposed, can write.
In this description, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.Be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (1)
1. a chalk holder, mainly comprise screw shell and chalk boost motor, it is characterized in that: inside described screw shell, be provided with internal thread, described chalk boost motor top is provided with boost motor cap, bottom is provided with external screw thread, the external screw thread of described chalk boost motor bottom matches with the internal thread inside screw shell, and described chalk boost motor is provided with center bottom outlet, and described center bottom outlet inwall is provided with the sheet metal of clamping chalk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420827912.1U CN204472227U (en) | 2014-12-23 | 2014-12-23 | A kind of chalk holder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420827912.1U CN204472227U (en) | 2014-12-23 | 2014-12-23 | A kind of chalk holder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204472227U true CN204472227U (en) | 2015-07-15 |
Family
ID=53628007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420827912.1U Expired - Fee Related CN204472227U (en) | 2014-12-23 | 2014-12-23 | A kind of chalk holder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204472227U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105346307A (en) * | 2015-11-27 | 2016-02-24 | 沈晶晶 | Chalk sleeve used for teaching |
| CN106427299A (en) * | 2016-09-12 | 2017-02-22 | 芜湖能盟信息技术有限公司 | Chalk clamping sleeve |
| CN108116102A (en) * | 2017-12-22 | 2018-06-05 | 温州习得教育科技有限公司 | A kind of chalk sleeve for being convenient for making full use of chalk |
-
2014
- 2014-12-23 CN CN201420827912.1U patent/CN204472227U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105346307A (en) * | 2015-11-27 | 2016-02-24 | 沈晶晶 | Chalk sleeve used for teaching |
| CN105346307B (en) * | 2015-11-27 | 2017-07-07 | 吴思奇 | A kind of teaching chalk set |
| CN107009784A (en) * | 2015-11-27 | 2017-08-04 | 盐城麦知汇科技有限公司 | A kind of application method of chalk sleeve |
| CN106427299A (en) * | 2016-09-12 | 2017-02-22 | 芜湖能盟信息技术有限公司 | Chalk clamping sleeve |
| CN108116102A (en) * | 2017-12-22 | 2018-06-05 | 温州习得教育科技有限公司 | A kind of chalk sleeve for being convenient for making full use of chalk |
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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: 20150715 Termination date: 20151223 |
|
| EXPY | Termination of patent right or utility model |