CN204020301U - Knob dust-separation chalk device - Google Patents
Knob dust-separation chalk device Download PDFInfo
- Publication number
- CN204020301U CN204020301U CN201420475167.9U CN201420475167U CN204020301U CN 204020301 U CN204020301 U CN 204020301U CN 201420475167 U CN201420475167 U CN 201420475167U CN 204020301 U CN204020301 U CN 204020301U
- Authority
- CN
- China
- Prior art keywords
- chalk
- knob
- dust
- separation
- overcoat
- 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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- Drawing Aids And Blackboards (AREA)
Abstract
Assistant product when the utility model relates to a kind of use chalk-writing, particularly a kind of knob dust-separation chalk device.This knob dust-separation chalk device, comprises overcoat, it is characterized in that: described overcoat inside top is provided with boss, and boss center is provided with screwed hole, is equipped with screw rod in screwed hole, and jacket bottom is connected with clip.The beneficial effects of the utility model are: in the time using chalk to write, can prevent that chalk from contacting with hand skin; Simple in structure, easy to use, for people's health provides guarantee.
Description
(1) technical field
Assistant product when the utility model relates to a kind of use chalk-writing, particularly a kind of knob dust-separation chalk device.
(2) background technology
As everyone knows, the word that writes with chalk has very large injury to skin.Show according to investigations, the lighter makes dry skin, and severe one can cause wrinkled skin, folliculitis etc.Though have liquid chalk to come out, use first current cost high because writing uncomfortable meeting.
(3) summary of the invention
The utility model, in order to make up the deficiencies in the prior art, provides a kind of knob dust-separation chalk device simple in structure, easy to use.
The utility model is achieved by the following technical solution:
A kind of knob dust-separation chalk device, comprises overcoat, it is characterized in that: described overcoat inside top is provided with boss, and boss center is provided with screwed hole, is equipped with screw rod in screwed hole, and jacket bottom is connected with clip.
Described screw tip is provided with handle, and end is connected with chalk lid.
The beneficial effects of the utility model are: in the time using chalk to write, can prevent that chalk from contacting with hand skin; Simple in structure, easy to use, for people's health provides guarantee.
(4) brief description of the drawings
Below in conjunction with accompanying drawing, the utility model is further described.
Accompanying drawing 1 is structural representation of the present utility model;
In figure, 1 overcoat, 2 boss, 3 screwed holes, 4 screw rods, 5 clips, 6 handles, 7 chalk lids.
(5) detailed description of the invention
Accompanying drawing is a kind of specific embodiment of the present utility model.This embodiment comprises overcoat 1, and overcoat 1 inside top is provided with boss 2, and boss 2 centers are provided with screwed hole 3, are equipped with screw rod 4 in screwed hole 3, and overcoat 1 bottom is connected with clip 5.Screw rod 4 tops are provided with handle 6, and end is connected with chalk lid 7.
Adopt knob dust-separation chalk device of the present utility model, open clip 5, chalk is stretched into overcoat 1 inside, peaked on chalk lid 7, clamp chalk tail end with clip 5, when use, hold overcoat 1 and write.After exposed portions serve runs out respectively, can unclamp on the other hand clip 5, the handle 6 that turns clockwise on the other hand, makes screw rod 4 advance to overcoat 1 inside along screwed hole 3, can release required chalk length, is again sandwiched on clip 5.
Claims (2)
1. a knob dust-separation chalk device, comprise overcoat (1), it is characterized in that: described overcoat (1) inside top is provided with boss (2), boss (2) center is provided with screwed hole (3), in screwed hole (3), be equipped with screw rod (4), overcoat (1) bottom is connected with clip (5).
2. knob dust-separation chalk device according to claim 1, is characterized in that: described screw rod (4) top is provided with handle (6), and end is connected with chalk lid (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420475167.9U CN204020301U (en) | 2014-08-22 | 2014-08-22 | Knob dust-separation chalk device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420475167.9U CN204020301U (en) | 2014-08-22 | 2014-08-22 | Knob dust-separation chalk device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204020301U true CN204020301U (en) | 2014-12-17 |
Family
ID=52060207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420475167.9U Expired - Fee Related CN204020301U (en) | 2014-08-22 | 2014-08-22 | Knob dust-separation chalk device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204020301U (en) |
-
2014
- 2014-08-22 CN CN201420475167.9U patent/CN204020301U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141217 Termination date: 20150822 |
|
| EXPY | Termination of patent right or utility model |