CN201989472U - Chalk clip for teaching - Google Patents
Chalk clip for teaching Download PDFInfo
- Publication number
- CN201989472U CN201989472U CN2011200743148U CN201120074314U CN201989472U CN 201989472 U CN201989472 U CN 201989472U CN 2011200743148 U CN2011200743148 U CN 2011200743148U CN 201120074314 U CN201120074314 U CN 201120074314U CN 201989472 U CN201989472 U CN 201989472U
- Authority
- CN
- China
- Prior art keywords
- chalk
- teaching
- sliding seat
- 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)
Abstract
The utility model provides a chalk clip for teaching, which belongs to the field of teaching tools. The chalk clip structurally comprises a barrel body; a chalk barrel is arranged in the barrel body; a chalk clip body is arranged in the chalk barrel and connected with the chalk barrel in a sliding way; the side wall of the chalk barrel is provided with a guide passage; a sliding seat is arranged in the guide passage and connected with the guide passage in a sliding way; the bottom of the sliding seat is connected with the chalk clip body; an upper end at the top of the sliding seat is provided with a positioning rod and hinged with one end of the positioning rod; an outer side surface at the other end of the positioning rod is provided with a positioning bulge; a button is arranged on the outer side surface of the positioning rod, namely above the positioning bulge; and a spring is arranged between the inner side surface of the positioning rod and the sliding seat. Compared with the prior art, the chalk clip has the advantages of reasonable design, simple structure, convenience in use, convenience for a teacher in teaching, improvement of the teaching efficiency in a classroom, and the like.
Description
Technical field
The utility model relates to a kind of teaching aid, and specifically a kind of teaching is pressed from both sides with chalk.
Background technology
Chalk is the instrument that widely uses in the daily life, generally is used for book and writes on the blackboard.Need be on blackboard when the teacher imparts knowledge to students at school a large amount of writing words all are that the hand-held chalk of teacher is write usually, point like this, palm directly contacts with chalk, makes skin directly accept the erosion of lime, and health is impacted; In addition, hand-held chalk writes and allows chalk fracture easily, and not only influence teaching has also increased the waste of chalk.This allows the teacher feel headache.
Summary of the invention
Technical assignment of the present utility model is at the deficiencies in the prior art, provides a kind of teaching reasonable in design, simple in structure to press from both sides with chalk.
The technical scheme that its technical problem that solves the utility model adopts is: comprise cylindrical shell, described inner barrel is provided with the chalk tube, be provided with the chalk clamp in the chalk tube and be slidingly connected with it, described chalk tube sidewall is provided with the guiding road, guiding is provided with sliding seat in the road and is slidingly connected with it, the sliding seat bottom is connected with the chalk clamp, upper end, sliding seat top is provided with backstay and hinged with the one end, backstay other end lateral surface is provided with positioning convex, be that the positioning convex top is provided with button on the backstay lateral surface, be provided with spring between backstay medial surface and the sliding seat.
Described cylinder inboard wall is provided with the draw-in groove that matches with positioning convex.
Chalk one end is placed in the chalk clamp, hand touches the button, this moment, positioning convex and draw-in groove were separated, the chalk clamp can be moved up and down, when moving to ad-hoc location, release button, backstay can make positioning convex be meshed with draw-in groove under the effect of spring again, and this moment, the position of chalk support body was fixed.
A kind of teaching of the present utility model is pressed from both sides compared with prior art with chalk, and the beneficial effect that is produced is:
Have characteristics such as reasonable in design, simple in structure, easy to use, function admirable, practicality, volume is little, and is easy to carry, makes things convenient for teachers ' teaching, improved classroom teaching efficiency.The hand-held chalk folder of teacher just can be write on blackboard.Avoided finger, palm directly to contact chalk, make its skin avoid the etch of lime, easy to use, comfortable feel, chalk is contained in the chalk folder and writes simultaneously, and chalk is frangibility not, greatly reduces the waste of chalk, for teaching provides a kind of civilized teaching aid, also provide a kind of health treatment for the teacher.
Description of drawings
Accompanying drawing 1 is a structural representation of the present utility model.
Among the figure, 1, cylindrical shell, 2, the chalk clamp, 3, sliding seat, 4, backstay, 5, button, 6, positioning convex, 7, spring, 8, draw-in groove, 9, the guiding road, 10, the chalk tube.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is done following detailed description the in detail.
As shown in drawings, a kind of teaching of the present utility model is pressed from both sides with chalk, its structure comprises cylindrical shell 1, described cylindrical shell 1 inside is provided with chalk tube 10, be provided with chalk clamp 2 in the chalk tube 10 and be slidingly connected with it, described chalk tube 10 sidewalls are provided with guiding road 9, guiding is provided with sliding seat 3 in the road 9 and is slidingly connected with it, sliding seat 3 bottoms are connected with chalk clamp 2, upper end, sliding seat 3 tops is provided with backstay 4 and hinged with the one end, backstay 4 other end lateral surfaces are provided with positioning convex 6, are that positioning convex 6 tops are provided with button 5 on backstay 4 lateral surfaces, are provided with spring 7 between backstay 4 medial surfaces and the sliding seat 3.
Described cylindrical shell 1 inwall is provided with the draw-in groove 8 that matches with positioning convex 6.
It is simple and convenient that a kind of teaching of the present utility model is pressed from both sides its processing and fabricating with chalk, and processing and fabricating gets final product shown in the by specification accompanying drawing.
Except that the described technical characterictic of specification, be those skilled in the art's known technology.
Claims (2)
1. a teaching is pressed from both sides with chalk, comprise cylindrical shell, it is characterized in that described inner barrel is provided with the chalk tube, be provided with the chalk clamp in the chalk tube and be slidingly connected with it, described chalk tube sidewall is provided with the guiding road, guiding is provided with sliding seat in the road and is slidingly connected with it, the sliding seat bottom is connected with the chalk clamp, upper end, sliding seat top is provided with backstay and hinged with the one end, backstay other end lateral surface is provided with positioning convex, be that the positioning convex top is provided with button on the backstay lateral surface, be provided with spring between backstay medial surface and the sliding seat.
2. a kind of teaching according to claim 1 is characterized in that with the chalk folder described cylinder inboard wall is provided with the draw-in groove that matches with positioning convex.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200743148U CN201989472U (en) | 2011-03-21 | 2011-03-21 | Chalk clip for teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200743148U CN201989472U (en) | 2011-03-21 | 2011-03-21 | Chalk clip for teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201989472U true CN201989472U (en) | 2011-09-28 |
Family
ID=44665971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200743148U Expired - Fee Related CN201989472U (en) | 2011-03-21 | 2011-03-21 | Chalk clip for teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201989472U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106626886A (en) * | 2017-03-05 | 2017-05-10 | 刘金凤 | Environment-friendly chalk clamp |
-
2011
- 2011-03-21 CN CN2011200743148U patent/CN201989472U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106626886A (en) * | 2017-03-05 | 2017-05-10 | 刘金凤 | Environment-friendly chalk clamp |
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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: 20110928 Termination date: 20120321 |