CN204037184U - A kind of environmental protection type blackboard - Google Patents
A kind of environmental protection type blackboard Download PDFInfo
- Publication number
- CN204037184U CN204037184U CN201420527054.9U CN201420527054U CN204037184U CN 204037184 U CN204037184 U CN 204037184U CN 201420527054 U CN201420527054 U CN 201420527054U CN 204037184 U CN204037184 U CN 204037184U
- Authority
- CN
- China
- Prior art keywords
- blower fan
- flange
- powder
- powder groove
- connects
- 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
The utility model relates to a kind of environmental protection type blackboard, comprises blackboard body, it is characterized in that: the surrounding of described blackboard body is disposed with V-arrangement suction powder groove, taper shape connects powder groove, blower fan; Be provided with taper shape after described suction powder groove and connect powder groove, the one end connecing powder groove is provided with blower fan; The air inlet of described blower fan is provided with flange A, meets flange B powder groove having and complements one another with flange A at taper shape, blower fan is interconnected flange A and flange B by threaded rod; The air outlet of described blower fan is provided with and connects powder device; The described powder device that connects is ventilate and the fiber Composite of dirt penetration can be prevented to be made; The described edge connecing powder device is provided with circular hole, blackboard body is provided with the hook complemented one another with circular hole, connect powder device and be hung in blackboard body by hook.
Description
Technical field
The utility model relates to a kind of teaching aid, is specifically a kind of environmental protection type blackboard.
Background technology
To class hour on student, for ease of understanding and memory, for key content, teacher can write on blackboard with chalk every now and then, dust from flying when erasing the board, whether can suck inside the lung in human body, the lung of pupils can be subject to serious impact year in and year out, can solve and prevent when erasing the board students from sucking the dust flown upward.
Utility model content
The purpose of this utility model is to provide a kind of environmental protection type blackboard, and this blackboard can solve and prevent students from sucking the dust flown upward when erasing the board.
The technical scheme in the invention for solving the technical problem is: a kind of environmental protection type blackboard, comprises blackboard body, it is characterized in that: the surrounding of described blackboard body is disposed with V-arrangement suction powder groove, taper shape connects powder groove, blower fan; Be provided with taper shape after described suction powder groove and connect powder groove, the one end connecing powder groove is provided with blower fan; The air inlet of described blower fan is provided with flange A, meets flange B powder groove having and complements one another with flange A at taper shape, blower fan is interconnected flange A and flange B by threaded rod; The air outlet of described blower fan is provided with and connects powder device; The described powder device that connects is ventilate and the fiber Composite of dirt penetration can be prevented to be made; The described edge connecing powder device is provided with circular hole, blackboard body is provided with the hook complemented one another with circular hole, connect powder device and be hung in blackboard body by hook.
The beneficial effects of the utility model are: when connecting the power supply of blower fan, blower fan can inhale powder groove by V-arrangement successively the dust in blackboard body, taper shape connects powder groove and dust is sucked back into connects inside powder device, can effectively reduce and avoid the harm of dust on human body and the impact on environment, not affect carrying out smoothly of teaching; And it is simple to operate, easy to use.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
In figure: 1-blackboard body, 2-inhale powder groove, 3-connects powder groove, 4-blower fan, 5-air inlet, 6-flange A, 7-flange B, 8-air outlet, 9-connect powder device, 10-circular hole, 11-hook.
Detailed description of the invention
As shown in Figure 1: a kind of environmental protection type blackboard of the utility model, comprise blackboard body (1), it is characterized in that: the surrounding of described blackboard body (1) is disposed with V-arrangement suction powder groove (2), taper shape connects powder groove (3), blower fan (4); Be provided with taper shape after described suction powder groove (2) and connect powder groove (3), the one end connecing powder groove (3) is provided with blower fan (4); The air inlet (5) of described blower fan (4) is provided with flange A (6), meet the flange B (7) powder groove (3) having and complements one another with flange A (6) at taper shape, blower fan (4) is interconnected flange A (6) and flange B (7) by threaded rod; The air outlet (8) of described blower fan (4) is provided with and connects powder device (9); The described powder device (9) that connects is for ventilating and the fiber Composite of dirt penetration can being prevented to be made; The described edge connecing powder device (9) is provided with circular hole (10), blackboard body (1) is provided with the hook (11) complemented one another with circular hole (10), connects powder device (9) and be hung in blackboard body (1) by hook (11).
The beneficial effects of the utility model are: when connecting the power supply of blower fan (4), blower fan (4) can the dust in blackboard body (1) successively by V-arrangement inhale powder groove (2), taper shape connect powder groove (3) dust be sucked back into connect powder device (9) the inside, can effectively reduce and avoid the harm of dust on human body and the impact on environment, not affect carrying out smoothly of teaching; And it is simple to operate, easy to use.
Claims (1)
1. an environmental protection type blackboard, comprise blackboard body (1), it is characterized in that: the surrounding of described blackboard body (1) is disposed with V-arrangement suction powder groove (2), taper shape connects powder groove (3), blower fan (4); Be provided with taper shape after described suction powder groove (2) and connect powder groove (3), the one end connecing powder groove (3) is provided with blower fan (4); The air inlet (5) of described blower fan (4) is provided with flange A (6), meet the flange B (7) powder groove (3) having and complements one another with flange A (6) at taper shape, blower fan (4) is interconnected flange A (6) and flange B (7) by threaded rod; The air outlet (8) of described blower fan (4) is provided with and connects powder device (9); The described powder device (9) that connects is for ventilating and the fiber Composite of dirt penetration can being prevented to be made; The described edge connecing powder device (9) is provided with circular hole (10), blackboard body (1) is provided with the hook (11) complemented one another with circular hole (10), connects powder device (9) and be hung in blackboard body (1) by hook (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420527054.9U CN204037184U (en) | 2014-09-13 | 2014-09-13 | A kind of environmental protection type blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420527054.9U CN204037184U (en) | 2014-09-13 | 2014-09-13 | A kind of environmental protection type blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204037184U true CN204037184U (en) | 2014-12-24 |
Family
ID=52237887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420527054.9U Expired - Fee Related CN204037184U (en) | 2014-09-13 | 2014-09-13 | A kind of environmental protection type blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204037184U (en) |
-
2014
- 2014-09-13 CN CN201420527054.9U patent/CN204037184U/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: 20141224 Termination date: 20150913 |
|
| EXPY | Termination of patent right or utility model |