CN202413037U - Telescopic chalk - Google Patents
Telescopic chalk Download PDFInfo
- Publication number
- CN202413037U CN202413037U CN2011204534029U CN201120453402U CN202413037U CN 202413037 U CN202413037 U CN 202413037U CN 2011204534029 U CN2011204534029 U CN 2011204534029U CN 201120453402 U CN201120453402 U CN 201120453402U CN 202413037 U CN202413037 U CN 202413037U
- Authority
- CN
- China
- Prior art keywords
- chalk
- inner sleeve
- sliding button
- slideway
- sliding
- 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
Links
Images
Landscapes
- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
Abstract
The utility model discloses a telescopic chalk comprising an outer sleeve, an inner sleeve, a chalk, a slideway, a sliding button, a sliding rod, an opening and a chalk outlet, wherein the inner sleeve is arranged in the outer sleeve, the chalk is placed in the inner sleeve, the chalk outlet is arranged at one ends of the outer and inner sleeves, the sliding rod is arranged in the other end of the inner sleeve, the chalk pushes against the sliding rod, the sliding rod is in screwed connection with the sliding button, and the sliding button passes through the opening on the wall of the inner sleeve and the slideway on the outer sleeve to extend out of the outer sleeve and is used for driving the chalk to extend out along the slideway. The telescopic chalk is simple in structure; when the chalk is used, a user presses the sliding button, and then the sliding button drives the chalk to extend out along the slideway, so that the hand of the user is prevented from directly contacting the chalk; after the chalk is used up, the sliding button is unscrewed, the inner sleeve is taken out, another chalk is arranged again, the sliding rod is pushed back again, and then the sliding button is screwed down; and the telescopic chalk is convenient to use and can be used for protecting the good health of teachers.
Description
Technical field
The utility model relates to a kind of telescopic chalk.
Background technology
In the winter of cold, air is dry, and teacher's hand is taken the chalk writing board book, and the time has been grown, and teacher's finger is itched, even breach and decortication phenomenon occur, has a strong impact on the healthy of teacher.
Summary of the invention
The utility model technical problem to be solved is, overcomes the shortcoming that prior art exists, and a kind of telescopic chalk is provided, and is simple in structure, avoids hand directly to contact chalk, reaches the healthy purpose of protection teacher.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of telescopic chalk is characterized in that; Comprise outer tube, inner sleeve, chalk, slideway, sliding button, slide bar, opening and chalk outlet, be provided with inner sleeve in the sleeve pipe outside, place chalk in the inner sleeve; Outer tube and inner sleeve one end are provided with chalk outlet; Be provided with slide bar in the other end of inner sleeve, chalk withstands slide bar, and slide bar is connected with the sliding button screw socket; Sliding button stretches out outer tube through the opening of inner sleeve wall and the slideway on the outer tube, and sliding button drives chalk along slideway and stretches out.
The beneficial effect of the utility model is: simple in structure, the user presses sliding button, and sliding button drives chalk along slideway and stretches out; Avoid hand directly to contact chalk, after chalk uses up, sliding button is screwed down; Take out inner sleeve and load onto chalk again, slide bar is rolled back again, sliding button is screwed on again; Easy to use, can protect the teacher healthy.
Description of drawings
Fig. 1 is telescopic chalk sketch map.
Among the figure:
1 outer tube, 2 inner sleeves
3 chalks, 4 slideways
5 sliding buttons, 6 slide bars
7 openings, 8 chalk outlets
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is done further explain: telescopic chalk, as shown in the figure, comprise outer tube, inner sleeve, chalk, slideway, sliding button, slide bar, opening and chalk outlet; Be provided with inner sleeve in the sleeve pipe outside; Place chalk in the inner sleeve, outer tube and inner sleeve one end are provided with chalk outlet, are provided with slide bar in the other end of inner sleeve; Chalk withstands slide bar; Slide bar is connected with the sliding button screw socket, and sliding button stretches out outer tube through the opening of inner sleeve wall and the slideway on the outer tube, and sliding button drives chalk along slideway and stretches out.
The utility model simple in structure, the user presses sliding button, and sliding button drives chalk along slideway and stretches out; Avoid hand directly to contact chalk, after chalk uses up, sliding button is screwed down; Take out inner sleeve from chalk outlet and load onto chalk again, slide bar is rolled back again, sliding button is screwed on again; Easy to use, can protect the teacher healthy.
Claims (1)
1. a telescopic chalk is characterized in that, comprises outer tube, inner sleeve, chalk, slideway, sliding button, slide bar, opening and chalk outlet; Be provided with inner sleeve in the sleeve pipe outside, place chalk in the inner sleeve, outer tube and inner sleeve one end are provided with chalk outlet; Be provided with slide bar in the other end of inner sleeve, chalk withstands slide bar, and slide bar is connected with the sliding button screw socket; Sliding button stretches out outer tube through the opening of inner sleeve wall and the slideway on the outer tube, and sliding button drives chalk along slideway and stretches out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204534029U CN202413037U (en) | 2011-11-16 | 2011-11-16 | Telescopic chalk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204534029U CN202413037U (en) | 2011-11-16 | 2011-11-16 | Telescopic chalk |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202413037U true CN202413037U (en) | 2012-09-05 |
Family
ID=46737825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204534029U Expired - Fee Related CN202413037U (en) | 2011-11-16 | 2011-11-16 | Telescopic chalk |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202413037U (en) |
-
2011
- 2011-11-16 CN CN2011204534029U patent/CN202413037U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| C56 | Change in the name or address of the patentee |
Owner name: SUN SHUOSHAN Free format text: FORMER NAME: SUN SHUOBIN |
|
| CB03 | Change of inventor or designer information |
Inventor after: Sun Shuoshan Inventor before: Sun Shuobin |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: SUN SHUOBIN TO: SUN SHUOSHAN |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 300120, Tianjin, Nankai District in the middle Camp No. 2, Tianjin, Nankai District primary school in the camp Patentee after: Sun Shuoshan Address before: 300120, Tianjin, Nankai District in the middle Camp No. 2, Tianjin, Nankai District primary school in the camp Patentee before: Sun Shuobin |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20141116 |
|
| EXPY | Termination of patent right or utility model |