CN204322812U - Chalk support - Google Patents
Chalk support Download PDFInfo
- Publication number
- CN204322812U CN204322812U CN201420728623.6U CN201420728623U CN204322812U CN 204322812 U CN204322812 U CN 204322812U CN 201420728623 U CN201420728623 U CN 201420728623U CN 204322812 U CN204322812 U CN 204322812U
- Authority
- CN
- China
- Prior art keywords
- inner sleeve
- neto
- chalk
- housing
- screw sheel
- 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
Abstract
The utility model provides a kind of chalk support, comprises housing, screw sheel, inner sleeve, Neto, and lid is characterized in that: enclosure interior is provided with inner sleeve, and housing bottom is connected with bottom inner sleeve, and Neto is arranged in inner sleeve, and Neto both sides are provided with projection; Screw sheel is arranged between inner sleeve and housing, and the inwall of screw sheel is provided with the helicla flute working in coordination with Neto Neto is moved up and down in inner sleeve, and inner sleeve one end is provided with projection, clamping lid.The utility model compared with prior art has significant advantage and beneficial effect: can be placed in chalk sleeve by chalk, and regulate chalk length by rotating, the hand of teacher need not encounter chalk, can not lime dirty, protection teacher hand skin.
Description
Technical field
The utility model belongs in a kind of chalk sleeve, particularly the rotatable chalk sleeve of one.
Background technology
At present, teacher at school time chalk-writing will be used a large amount of writing on the blackboard, because chalk is made up of lime, the corrosivity of opponent is very strong, one class gets off, teacher has sticked chalk foam on hand, and more piece class gets off, and the hand of teacher can be corroded by chalk foam, time one is long, the hand of teacher can be very dry, and What is more, can be burnt skin.
Summary of the invention
Problem to be solved in the utility model is, overcomes the deficiencies in the prior art, provides a kind of
The utility model solves its technical problem and takes following technical scheme to realize:
A kind of chalk support, comprise housing, screw sheel, inner sleeve, Neto, lid, it is characterized in that: enclosure interior is provided with inner sleeve, housing bottom is connected with bottom inner sleeve, and Neto is arranged in inner sleeve, and Neto both sides are provided with projection; Screw sheel is arranged between inner sleeve and housing, and the inwall of screw sheel is provided with the helicla flute working in coordination with Neto Neto is moved up and down in inner sleeve, and inner sleeve one end is provided with raised line, clamping lid.
The utility model compared with prior art has significant advantage and beneficial effect: can be placed in chalk sleeve by chalk, and regulate chalk length by rotating, the hand of teacher need not encounter chalk, can not lime dirty, protection teacher hand skin.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Wherein 1, housing, 2, raised line, 3, screw sheel, 4, chalk, 5, lid, 6, inner sleeve, 7, projection, 8, Neto.
Detailed description of the invention
Below in conjunction with accompanying drawing and preferred embodiment, to detailed description of the invention, structure, feature and effect thereof of providing according to the utility model, be described in detail as follows.
A kind of chalk support as shown in Figure 1, comprises housing 1, screw sheel 3, inner sleeve 6, Neto 8, lid 5, and enclosure interior is provided with inner sleeve 6, is connected bottom housing 1 with bottom inner sleeve 6, and Neto 8 is arranged in inner sleeve 6, and Neto both sides are provided with projection 2; Screw sheel 3 is arranged between inner sleeve 6 and housing 1, and the inwall of screw sheel is provided with the helicla flute working in coordination with Neto Neto is moved up and down in inner sleeve, and inner sleeve 6 one end is provided with raised line 2, for clamping lid 5.
Above an embodiment of the present utility model has been described in detail, but described content being only preferred embodiment of the present utility model, can not being considered to for limiting practical range of the present utility model.All equalizations done according to the utility model application range change and improve, and all should still belong within patent covering scope of the present utility model.
Claims (1)
1. a chalk support, comprises housing, screw sheel, inner sleeve, Neto, and lid is characterized in that: enclosure interior is provided with inner sleeve, and housing bottom is connected with bottom inner sleeve, and Neto is arranged in inner sleeve, and Neto both sides are provided with projection; Screw sheel is arranged between inner sleeve and housing, and the inwall of screw sheel is provided with the helicla flute working in coordination with Neto Neto is moved up and down in inner sleeve, and inner sleeve one end is provided with raised line, clamping lid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420728623.6U CN204322812U (en) | 2014-11-28 | 2014-11-28 | Chalk support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420728623.6U CN204322812U (en) | 2014-11-28 | 2014-11-28 | Chalk support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204322812U true CN204322812U (en) | 2015-05-13 |
Family
ID=53159205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420728623.6U Expired - Fee Related CN204322812U (en) | 2014-11-28 | 2014-11-28 | Chalk support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204322812U (en) |
-
2014
- 2014-11-28 CN CN201420728623.6U patent/CN204322812U/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: 20150513 Termination date: 20151128 |