CN202986467U - Chalk clip for teaching - Google Patents
Chalk clip for teaching Download PDFInfo
- Publication number
- CN202986467U CN202986467U CN 201220753997 CN201220753997U CN202986467U CN 202986467 U CN202986467 U CN 202986467U CN 201220753997 CN201220753997 CN 201220753997 CN 201220753997 U CN201220753997 U CN 201220753997U CN 202986467 U CN202986467 U CN 202986467U
- Authority
- CN
- China
- Prior art keywords
- chalk
- slide
- cylindrical shell
- backstay
- barrel
- 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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- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
- Clips For Writing Implements (AREA)
Abstract
The utility model discloses a chalk clip for teaching, which comprises a barrel, a sliding shaft fixed on the barrel along the axis direction of the barrel, and a sliding seat which is sleeved on the sliding shaft and capable of sliding along the sliding shaft, wherein a fixed cavity for fixing chalk is formed in the sliding seat; chalk is fixed inside the fixed cavity; a locating rod is hinged on the sliding seat; a button is arranged on the locating rod and extends out of the barrel; a spring is arranged between the locating rod and the sliding seat; a triangular bulge projecting outwards is arranged at the tail end of the locating rod; a rack is arranged on the inner wall, corresponding to the triangular bulge, of the barrel; and the rack is matched with the triangular bulge. The chalk clip for teaching has the beneficial effects of being simple in structure, being beneficial to physical and psychological health of teachers as being capable of preventing chalk powder from being left on hands of teachers, and being extremely convenient to use.
Description
Technical field
The utility model relates to a kind of teaching aid, particularly a kind of teaching chalk cover.
Background technology
Chalk is a kind of realia commonly used, the teacher will use a large amount of chalks every day, owing to needing to pinch chalk with hand in the process of using chalk, thereby have a large amount of chalk powders and remain in the teacher on hand, very unhygienic, in the course of time, can have a strong impact on teacher's physical and mental health.
Summary of the invention
Problem to be solved in the utility model is: provide a kind of simple in structure, be difficult for chalk powder is left over teacher's chalk clip for teaching on hand.
in order to solve the problems of the technologies described above, chalk clip for teaching of the present utility model, comprise cylindrical shell, be fixed on cylindrical shell along the slide-bar of tubular axis direction and be socketed in the slide that can slide along slide-bar on slide-bar, described slide is provided with the fixedly lock chamber of chalk, be fixed with chalk in described lock chamber, be hinged with a backstay on described slide, described fixed outer bar is provided with a button, described button stretches out in outside cylindrical shell, be provided with spring between described backstay and slide, the end of described backstay is provided with a triangular hill of outwards giving prominence to, the described cylinder inboard wall corresponding with triangular hill is provided with tooth bar, described tooth bar and triangular hill are complementary.
The beneficial effect that the utility model is obtained is: (1) is simple in structure; (2) cylindrical shell is provided with slide, and slide is provided with lock chamber, when using chalk, chalk is fixed in lock chamber on slide, thereby with chalk-writing the time, need not directly contacts chalk, thereby be difficult for leaving over chalk powder to the teacher on hand, be of value to teacher's physical and mental health; (3) be hinged with a backstay on slide, backstay is provided with a button, and button stretches out in outside cylindrical shell, is provided with spring between backstay and slide, the end of backstay is provided with a triangular hill of outwards giving prominence to, the cylinder inboard wall corresponding with triangular hill is provided with tooth bar, and tooth bar and triangular hill are complementary, thereby presses button, slide can move down along slide-bar together with chalk, release button, slide is just locked by tooth bar together with chalk, and is very easy to use.
Description of drawings
Fig. 1 is front view of the present utility model.
In figure: 1, cylindrical shell, 2, slide, 3, slide-bar, 4, backstay, 5, button, 6, spring,
7, triangular hill, 8, tooth bar, 9, chalk, 10, lock chamber.
The specific embodiment
as shown in Figure 1, chalk clip for teaching of the present utility model, comprise cylindrical shell 1, be fixed on cylindrical shell 1 along the slide-bar 3 of cylindrical shell 1 axis direction and be socketed in the slide 2 that can slide along slide-bar 3 on slide-bar 3, described slide 2 is provided with the fixedly lock chamber 10 of chalk, be fixed with chalk 9 in described lock chamber 10, be hinged with a backstay 4 on described slide 2, described backstay 4 is provided with a button 5, described button 5 stretches out in outside cylindrical shell 1, be provided with spring 6 between described backstay 4 and slide 2, the end of described backstay 4 is provided with a triangular hill 7 of outwards giving prominence to, the described cylindrical shell corresponding with triangular hill 71 inwall is provided with tooth bar 8, described tooth bar 8 is complementary with triangular hill 7.
Chalk clip for teaching of the present utility model, simple in structure, cylindrical shell 1 is provided with slide 2, slide 2 is provided with lock chamber 10, when using chalk 9, chalk 9 is fixed in lock chamber 10 on slide 2, thereby when writing with chalk 9, need not directly contact chalk 9, thereby be difficult for leaving over chalk powder to the teacher on hand, be of value to teacher's physical and mental health.
Be hinged with a backstay 4 on slide 2, backstay 4 is provided with a button 5, button 5 stretches out in outside cylindrical shell 1, be provided with spring 6 between backstay 4 and slide 2, the end of backstay 4 is provided with a triangular hill 7 of outwards giving prominence to, cylindrical shell 1 inwall corresponding with triangular hill 7 is provided with tooth bar 8, tooth bar 8 is complementary with triangular hill 7, thereby press button 5, slide 2 can move down along slide-bar 3 together with chalk 9, release button 5, slide 2 is just locked by tooth bar 8 together with chalk 9, and is very easy to use.
Claims (1)
1. chalk clip for teaching, it is characterized in that: comprise cylindrical shell (1), be fixed on cylindrical shell (1) along the slide-bar (3) of cylindrical shell (1) axis direction and be socketed in the slide (2) that can slide along slide-bar (3) on slide-bar (3), described slide (2) is provided with the fixedly lock chamber of chalk (10), be fixed with chalk (9) in described lock chamber (10), be hinged with a backstay (4) on described slide (2), described backstay (4) is provided with a button (5), described button (5) stretches out in outside cylindrical shell (1), be provided with spring (6) between described backstay (4) and slide (2), the end of described backstay (4) is provided with a triangular hill (7) of outwards giving prominence to, described cylindrical shell (1) inwall corresponding with triangular hill (7) is provided with tooth bar (8), described tooth bar (8) is complementary with triangular hill (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220753997 CN202986467U (en) | 2012-12-27 | 2012-12-27 | Chalk clip for teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220753997 CN202986467U (en) | 2012-12-27 | 2012-12-27 | Chalk clip for teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202986467U true CN202986467U (en) | 2013-06-12 |
Family
ID=48557679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220753997 Expired - Fee Related CN202986467U (en) | 2012-12-27 | 2012-12-27 | Chalk clip for teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202986467U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112706541A (en) * | 2020-12-22 | 2021-04-27 | 真彩文具股份有限公司 | Oil painting stick protective sleeve |
-
2012
- 2012-12-27 CN CN 201220753997 patent/CN202986467U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112706541A (en) * | 2020-12-22 | 2021-04-27 | 真彩文具股份有限公司 | Oil painting stick protective sleeve |
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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: 20130612 Termination date: 20131227 |