CN204382891U - Dustproof chalk cover - Google Patents
Dustproof chalk cover Download PDFInfo
- Publication number
- CN204382891U CN204382891U CN201420780595.2U CN201420780595U CN204382891U CN 204382891 U CN204382891 U CN 204382891U CN 201420780595 U CN201420780595 U CN 201420780595U CN 204382891 U CN204382891 U CN 204382891U
- Authority
- CN
- China
- Prior art keywords
- chalk
- sleeve
- upper shield
- dust
- dustproof
- 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
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- Drawing Aids And Blackboards (AREA)
Abstract
The utility model discloses a kind of Dustproof chalk cover, comprise chalk block set, chalk sleeve and chalk upper shield, and in chalk sleeve, be provided with a dust-absorbing fan, and be arranged on chalk sleeve and cover, the top of chalk block set is formed with multiple dust suction aperture, dust-absorbing fan is made up of fan, motor, power supply and switch, and switch-linear hybrid covers at chalk sleeve, and chalk upper shield is installed fixing openably with chalk sleeve.The utility model has the advantages that: structure is simple, and easy to use, avoiding writing on blackboard with chalk is to causing a large amount of dust in air, the health affecting people is breathed.
Description
Technical field
The utility model relates to a kind of chalk sleeve, especially relates to a kind of Dustproof chalk cover with dust sucting motor.
Background technology
At present, in teaching process, generally use a kind of chalk sleeve that chalk can be inserted therein, but directly write on blackboard due to chalk, just have chalk foam when writing and fall thereupon, make writer suck in health, cause health hazard.
Utility model content
The utility model proposes to overcome above shortcoming, its objective is a kind of Dustproof chalk cover with dust sucting motor of design.
The technical solution of the utility model is: a kind of Dustproof chalk cover, comprise chalk block set, chalk sleeve and chalk upper shield, and in chalk sleeve, be provided with a dust-absorbing fan, and be arranged on chalk sleeve and cover, the top of chalk block set is formed with multiple dust suction aperture, dust-absorbing fan is made up of fan, motor, power supply and switch, and switch-linear hybrid covers at chalk sleeve, and chalk upper shield is installed fixing openably with chalk sleeve.
Described chalk upper shield is installed fixing by screw thread rotation ground and chalk sleeve.
Described chalk upper shield and chalk sleeve hinged.
The utility model has the advantages that: structure is simple, and easy to use, avoiding writing on blackboard with chalk is to causing a large amount of dust in air, the health affecting people is breathed.
Accompanying drawing explanation
Fig. 1 is the stereogram of the utility model Dustproof chalk cover;
Fig. 2 is the internal structure schematic diagram of the utility model Dustproof chalk cover.
In accompanying drawing, critical piece illustrates:
1 chalk block set 2 chalk sleeve 3 chalk upper shield
4 dust-absorbing fan 5 dust suction aperture 6 fans
7 motor 8 power supply 9 switches.
Detailed description of the invention
Detailed description of the invention of the present utility model is described in detail below in conjunction with accompanying drawing.
As shown in Figure 1-2,
A kind of Dustproof chalk cover, comprise chalk block set 1, chalk sleeve 2 and chalk upper shield 3, and in chalk sleeve 2, be provided with a dust-absorbing fan 4, and be arranged on chalk upper shield 3, the top of chalk block set 1 is formed with multiple dust suction aperture 5, dust-absorbing fan 4 is made up of fan 6, motor 7, power supply 8 and switch 9, and switch 9 is arranged on chalk upper shield 3, and chalk upper shield 3 is installed fixing openably with chalk sleeve 2.
Described chalk upper shield 3 is arranged on fixing by screw thread rotation with chalk sleeve 2.
Described chalk upper shield 3 is hinged with chalk sleeve 2.
The utility model has following beneficial effect: the utility model in use, opens switch, motor, fan running, chalk dust is sucked in chalk sleeve by dust suction aperture by dust-absorbing fan, after a procedure, and powered-down switch, open chalk upper shield, chalk dust is poured out in chalk sleeve.
Claims (3)
1. a Dustproof chalk cover, comprise chalk block set (1), chalk sleeve (2) and chalk upper shield (3), it is characterized in that: in chalk sleeve (2), be provided with a dust-absorbing fan (4), and be arranged on chalk upper shield (3), the top of chalk block set (1) is formed with multiple dust suction aperture (5), dust-absorbing fan (4) is made up of fan (6), motor (7), power supply (8) and switch (9), switch (9) is arranged on chalk upper shield (3), and chalk upper shield (3) is installed fixing openably with chalk sleeve (2).
2. Dustproof chalk cover according to claim 1, is characterized in that: described chalk upper shield (3) is installed fixing by screw thread rotation with chalk sleeve (2).
3. Dustproof chalk cover according to claim 1, is characterized in that: described chalk upper shield (3) is hinged with chalk sleeve (2).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201420780595.2U CN204382891U (en) | 2014-12-12 | 2014-12-12 | Dustproof chalk cover |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201420780595.2U CN204382891U (en) | 2014-12-12 | 2014-12-12 | Dustproof chalk cover |
Publications (1)
Publication Number | Publication Date |
---|---|
CN204382891U true CN204382891U (en) | 2015-06-10 |
Family
ID=53355640
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201420780595.2U Expired - Fee Related CN204382891U (en) | 2014-12-12 | 2014-12-12 | Dustproof chalk cover |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN204382891U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109605995A (en) * | 2018-11-21 | 2019-04-12 | 王晨娣 | A kind of teaching dust arrester installation having rotary adjustment structure |
-
2014
- 2014-12-12 CN CN201420780595.2U patent/CN204382891U/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109605995A (en) * | 2018-11-21 | 2019-04-12 | 王晨娣 | A kind of teaching dust arrester installation having rotary adjustment structure |
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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: 20150610 Termination date: 20151212 |
|
EXPY | Termination of patent right or utility model |