CN202528656U - Improved chalk writer - Google Patents
Improved chalk writer Download PDFInfo
- Publication number
- CN202528656U CN202528656U CN2012201659351U CN201220165935U CN202528656U CN 202528656 U CN202528656 U CN 202528656U CN 2012201659351 U CN2012201659351 U CN 2012201659351U CN 201220165935 U CN201220165935 U CN 201220165935U CN 202528656 U CN202528656 U CN 202528656U
- Authority
- CN
- China
- Prior art keywords
- chalk
- hollow cylinder
- hollow column
- push rod
- improved
- 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 relates to an improved chalk writer which comprises a hollow column, wherein a chalk fixing clamp is arranged at one end of the hollow column; an ejector rod is arranged at the other end of the hollow column; due to the arrangement of the hollow column, the chalk is held inside the hollow column, then a hand is not stained when the chalk is used; due to the arrangement of the chalk fixing clamp, the chalk is fixed inside the hollow column better; due to the arrangement of the ejector rod, the length of the chalk inside the hollow column is adjusted randomly by rotating the ejector rod, and the chalk is prevented from being fractured easily, and thus the cost is saved.
Description
Technical field
The utility model relates to a kind of teaching aid, relates to a kind of chalk Write specifically.
Background technology
Chalk is the important tool of teaching usefulness, but receives the influence of manufacturing materials, exists the shortcoming of dirty hand, frangible, influences teacher's health, the waste public expense.
The utility model content
The problem that the utility model will solve is to above problem, and is hand-dirtying-free when a kind of use is provided, and a kind of improved chalk Write of frangible not.
For addressing the above problem, the technical scheme that the utility model adopted is: a kind of improved chalk Write, comprise, and a hollow cylinder, an end of said hollow cylinder is provided with the chalk geometrical clamp, and the other end of said hollow cylinder is provided with push rod.
As a kind of improvement, said chalk geometrical clamp comprises, is fixedly mounted on first elastic clip and second elastic clip on the said hollow cylinder.
As further improvement, said hollow cylinder inner thread is connected with said push rod.
The utility model is taked above technical scheme, has the following advantages: a kind of improved chalk Write, comprise, and a hollow cylinder, an end of said hollow cylinder is provided with the chalk geometrical clamp, and the other end of said hollow cylinder is provided with push rod; Because the setting of hollow cylinder, chalk is contained in the hollow cylinder, can dirty hand during use; Because the setting of chalk geometrical clamp; The setting of push rod chalk better is fixed in the hollow cylinder, owing to can arbitrarily be adjusted the length of chalk in hollow cylinder through the rotation push rod; Prevent that chalk from fractureing easily, practiced thrift cost.
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Description of drawings
Accompanying drawing is the structural representation of the utility model embodiment.
Among the figure: the 1-hollow cylinder; 2-chalk geometrical clamp; The 3-push rod; 21-first elastic clip; 22-second elastic clip.
The specific embodiment
Embodiment: a kind of improved chalk Write; Comprise that a hollow cylinder 1, chalk are contained in the hollow cylinder 1; Can dirty hand during use; One end of said hollow cylinder 1 is provided with chalk geometrical clamp 2, and said chalk geometrical clamp 2 comprises, is fixedly mounted on first elastic clip 21 and second elastic clip 22 on the said hollow cylinder 1.Because the setting of chalk geometrical clamp 2 better is fixed in the hollow cylinder 1 chalk, the other end of said hollow cylinder 1 is provided with push rod 3, and said hollow cylinder 1 inner thread is connected with said push rod 3.Because the setting of push rod 3 can arbitrarily be adjusted the length of chalk in hollow cylinder 1 through rotation push rod 3, prevents that chalk from fractureing easily, practiced thrift cost.
Claims (3)
1. improved chalk Write is characterized in that: comprises, and a hollow cylinder, an end of said hollow cylinder is provided with the chalk geometrical clamp, and the other end of said hollow cylinder is provided with push rod.
2. a kind of improved chalk Write as claimed in claim 1 is characterized in that: said chalk geometrical clamp comprises, is fixedly mounted on first elastic clip and second elastic clip on the said hollow cylinder.
3. a kind of improved chalk Write as claimed in claim 1, it is characterized in that: said hollow cylinder inner thread is connected with said push rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201659351U CN202528656U (en) | 2012-04-11 | 2012-04-11 | Improved chalk writer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201659351U CN202528656U (en) | 2012-04-11 | 2012-04-11 | Improved chalk writer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202528656U true CN202528656U (en) | 2012-11-14 |
Family
ID=47129859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201659351U Expired - Fee Related CN202528656U (en) | 2012-04-11 | 2012-04-11 | Improved chalk writer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202528656U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105711293A (en) * | 2016-01-22 | 2016-06-29 | 孙硕 | Fracture-proof chalk clamp |
-
2012
- 2012-04-11 CN CN2012201659351U patent/CN202528656U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105711293A (en) * | 2016-01-22 | 2016-06-29 | 孙硕 | Fracture-proof 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: 20121114 Termination date: 20130411 |