CN201800366U - Chalk sleeve - Google Patents
Chalk sleeve Download PDFInfo
- Publication number
- CN201800366U CN201800366U CN2010205340844U CN201020534084U CN201800366U CN 201800366 U CN201800366 U CN 201800366U CN 2010205340844 U CN2010205340844 U CN 2010205340844U CN 201020534084 U CN201020534084 U CN 201020534084U CN 201800366 U CN201800366 U CN 201800366U
- Authority
- CN
- China
- Prior art keywords
- chalk
- sleeve
- chalk sleeve
- outer sleeve
- section
- 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.)
- Expired - Fee Related
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- Pens And Brushes (AREA)
Abstract
A chalk sleeve comprises a hollow chalk sleeve and an outer sleeve with a locking function. An elastic gripping head with an open slot is arranged at one end of the chalk sleeve, an outer threaded section is arranged on an outer wall of the chalk sleeve, an inner wall of the outer sleeve comprises a conical section used for locking the elastic gripping head and an inner threaded section corresponding to the outer threaded section, and the outer sleeve is in threaded connection with the chalk sleeve. During usage, a chalk is inserted in the chalk sleeve, the outer sleeve is sleeved from the end of the elastic gripping head of the chalk sleeve and then screwed down, the elastic gripping head of the chalk sleeve deforms due to squeezing of the conical section of the inner wall of the outer sleeve along with screwing action of the outer sleeve, so that the chalk is clamped tightly. The chalk sleeve can not only effectively prevent the chalk from being broken but prevent fingers of users writing words on a blackboard with the chalk from being stained easily.
Description
Technical field
The utility model relates to the realia field, relates in particular to a kind of chalk sleeve that is enclosed within the chalk outside.
Background technology
Chalk is the instrument that widely uses in the daily life, generally is used for book and writes on the blackboard.
But chalk fractures easily, causes waste, and hand-held chalk writes on blackboard, the as easy as rolling off a log finger of making dirty, also health simultaneously.
The utility model content
In order to address the above problem, the utility model provides a kind of chalk sleeve, to solve the chalk sleeve that chalk fractures easily, makes dirty easily and points in the prior art.
To achieve these goals, the technical solution of the utility model is as follows:
A kind of chalk sleeve is characterized in that, comprises the chalk sleeve of hollow shape and the outer sleeve that has locking effect; One end of described chalk sleeve is the collet that has open slot, also is provided with one section external thread section on the outer wall of described chalk sleeve; The inwall of described outer sleeve comprises conical section and a section and the corresponding internal thread segment of described external thread section that is used to lock collet; Described outer sleeve is threaded with the chalk sleeve.
During use, chalk is inserted in the chalk sleeve, and then the collet end of outer sleeve from the chalk sleeve is inserted in and tightens, along with tightening of outer sleeve, deformation takes place down in the collet of the chalk sleeve extruding of the conical section of sleeve lining outside, thereby clamps chalk.
The utility model both can prevent effectively that chalk from fractureing, and when writing on blackboard with chalk, was not easy the finger of making dirty again.
The utlity model has characteristics simple in structure, easy to use.
Description of drawings
Describe the utility model in detail below in conjunction with the drawings and specific embodiments:
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is a user mode schematic diagram of the present utility model.
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Referring to Fig. 1 and 2, a kind of chalk sleeve comprises the chalk sleeve 100 of hollow shape and the outer sleeve 200 that has locking effect.
The left end of chalk sleeve 100 is the collet 110 that has open slot 111, also is provided with one section external thread section 120 on the outer wall of chalk sleeve.External thread section 120 is positioned at the right side of collet 110.
The inwall of outer sleeve 200 comprises conical section 210 and a section and the corresponding internal thread segment 220 of external thread section that is used to lock collet; Internal thread segment 220 is positioned at the right side of conical section 210.
During use, chalk 300 is inserted in the chalk sleeve 100, and then the collet end of outer sleeve 200 from the chalk sleeve is inserted in and tightens, along with tightening of outer sleeve 200, deformation takes place down in the collet of the chalk sleeve extruding of the conical section of sleeve lining outside, thereby clamps chalk.
The utility model both can prevent effectively that chalk from fractureing, and when writing on blackboard with chalk, was not easy the finger of making dirty again.
The utlity model has characteristics simple in structure, easy to use.
More than show and described basic principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what describe in the foregoing description and the specification is principle of the present utility model; the utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these changes and improvements all fall in the claimed scope of the present utility model.The protection domain that the utility model requires is defined by appending claims and equivalent thereof.
Claims (1)
1. a chalk sleeve is characterized in that, comprises the chalk sleeve of hollow shape and the outer sleeve that has locking effect; One end of described chalk sleeve is the collet that has open slot, also is provided with one section external thread section on the outer wall of described chalk sleeve; The inwall of described outer sleeve comprises conical section and a section and the corresponding internal thread segment of described external thread section that is used to lock collet; Described outer sleeve is threaded with the chalk sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205340844U CN201800366U (en) | 2010-09-17 | 2010-09-17 | Chalk sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205340844U CN201800366U (en) | 2010-09-17 | 2010-09-17 | Chalk sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201800366U true CN201800366U (en) | 2011-04-20 |
Family
ID=43869883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205340844U Expired - Fee Related CN201800366U (en) | 2010-09-17 | 2010-09-17 | Chalk sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201800366U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104960358A (en) * | 2015-07-08 | 2015-10-07 | 集美大学 | Changeable multifunctional chalk sleeve |
| CN105599492A (en) * | 2016-02-19 | 2016-05-25 | 刘乐凝 | Chalk shell |
| KR102696961B1 (en) * | 2023-12-20 | 2024-08-20 | 한국씨엠이엔지(주) | Length adjustable making device for safety diagnosis |
| KR102707551B1 (en) * | 2023-12-20 | 2024-09-19 | 한국씨엠이엔지(주) | Length-adjustable lighting device for safety diagnosis |
-
2010
- 2010-09-17 CN CN2010205340844U patent/CN201800366U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104960358A (en) * | 2015-07-08 | 2015-10-07 | 集美大学 | Changeable multifunctional chalk sleeve |
| CN105599492A (en) * | 2016-02-19 | 2016-05-25 | 刘乐凝 | Chalk shell |
| KR102696961B1 (en) * | 2023-12-20 | 2024-08-20 | 한국씨엠이엔지(주) | Length adjustable making device for safety diagnosis |
| KR102707551B1 (en) * | 2023-12-20 | 2024-09-19 | 한국씨엠이엔지(주) | Length-adjustable lighting device for safety diagnosis |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110420 Termination date: 20110917 |