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CN204382891U - Dustproof chalk cover - Google Patents

Dustproof chalk cover Download PDF

Info

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
Application number
CN201420780595.2U
Other languages
Chinese (zh)
Inventor
袁闻婧
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201420780595.2U priority Critical patent/CN204382891U/en
Application granted granted Critical
Publication of CN204382891U publication Critical patent/CN204382891U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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

Dustproof chalk cover
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).
CN201420780595.2U 2014-12-12 2014-12-12 Dustproof chalk cover Expired - Fee Related CN204382891U (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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