CN201824739U - Electric dust-collecting blackboard eraser - Google Patents
Electric dust-collecting blackboard eraser Download PDFInfo
- Publication number
- CN201824739U CN201824739U CN2010205113643U CN201020511364U CN201824739U CN 201824739 U CN201824739 U CN 201824739U CN 2010205113643 U CN2010205113643 U CN 2010205113643U CN 201020511364 U CN201020511364 U CN 201020511364U CN 201824739 U CN201824739 U CN 201824739U
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- CN
- China
- Prior art keywords
- brush
- electric dust
- dust absorption
- eraser
- absorption blackboard
- 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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Abstract
The utility model relates to an electric dust-collecting blackboard eraser, which comprises a box body equipped with a suction blower, and an eraser body with a dust collection opening, wherein an erasing part is arranged on the surface of the eraser body ; the box body is communicated with the eraser body through a dust-collecting pipe; an exhaust outlet for exhausting air by the suction blower is formed on the box body; the dust-collecting blackboard eraser further comprises an eraser base matched with the eraser body; the eraser body is arranged on the eraser base, a power supply circuit is switched on once the eraser body leaves the eraser base, and a switch of the power supply circuit is off once the eraser body is arranged on the eraser base. The utility model provides an instant-on electric dust-collecting blackboard eraser, which has the advantages of convenience in use, compact structure, and small noise.
Description
Technical field
The utility model relates to a kind of blackboard brush, especially relates to a kind of electric dust absorption blackboard brush.
Background technology
In the middle of teaching, generally use chalk to demonstrate, black and white brush commonly used only has wiping action, do not absorb the dust function, the chalk dust that flies away everywhere is very unfavorable to health, based on this, the electric dust absorption blackboard brush arises at the historic moment, existing electric dust absorption blackboard brush generally comprises the casing that induced-draught fan is housed, the brush body that has suction port, the brush body surface arrangement has the bristle of blackboard wiping, casing is communicated with brush body by flexible pipe, in the casing strainer filtering chalk dust can be set, and also has to establish dust collecting in addition outside casing.Usually, and in teaching process, the black and white brush uses very frequent, all wants manual operation switch at every turn, makes troubles to use.For for establishing dust collecting outside the casing in addition, complex structure not only, and produce noise probably because wind path is crooked.
The utility model content
At the deficiency that above-mentioned prior art exists, the purpose of this utility model provide a kind of promptly take promptly use, easy to use, compact conformation, electric dust absorption blackboard brush that noise is little.
To achieve these goals, the technical scheme that the utility model adopted is:
A kind of electric dust absorption blackboard brush comprises the casing that induced-draught fan is housed, the brush body that has suction port, and described brush body surface arrangement has wiping portion, and described casing is communicated with brush body by sweep-up pipe, and described casing is provided with the exhaust outlet for the induced-draught fan air draft; Described electric dust absorption blackboard brush also comprises the brush holder with brush body coupling, and described brush holder is provided with brush body and leaves brush holder and promptly connect current supply circuit, and brush body is inserted the switch that brush holder promptly disconnects current supply circuit.
Further, the filter screen that filters chalk dust is housed in the described casing, a side of filter screen is installed induced-draught fan, and opposite side forms the collecting chamber that is communicated with described sweep-up pipe.
Preferably, described switch is a travel switch.
Perhaps, described switch is a microswitch.
Preferably, described filter screen level or vertically layout.
Preferably, described casing comprise loam cake that induced-draught fan is housed, with the detachable lower box that is connected of loam cake, described filter screen is removably mounted on the lower box.The detachable structure of loam cake and filter screen is convenient to the cleaning of chalk dust.The big capacity of lower box also is convenient to the collection of chalk dust.
Preferably, described wiping portion is a bristle.
Preferably, described brush body is plugged on the brush holder.
Preferably, described loam cake is connected by trip and buckle are detachable with lower box.Like this, be convenient to open loam cake cleaning dust, maintain also very convenient.
Technical conceive of the present utility model is: the brush holder with the brush body coupling is set, the switch that is connected on the blackboard brush current supply circuit is set on the brush holder, this switch can be a travel switch, it also can be microswitch, after brush body is inserted, switch moves to the position that current supply circuit is disconnected, and the blackboard brush outage is no longer worked; When brush body took out, switch moved to the position that current supply circuit is connected, the blackboard brush dust suction of starting working.By the design of this switch on the brush holder, make brush body can promptly take i.e. usefulness, the inconvenience of having avoided the frequent operation switch to bring.
In addition, by the strainer filtering dust is set in casing, with respect to for connecing dust collecting outside the casing in addition, structure is simpler, compact, and, casing and and brush body between the wind path structure also simpler, unobstructed, therefore when effectively absorbing dust, can reduce noise.
After adopting said structure, the utility model is compared the advantage that is had with prior art and is: (1) brush body can promptly be taken i.e. usefulness, uses convenient; (2) compact conformation, wind path unimpeded, effectively absorb dust, noise is little; (3) cleaning dust, maintenance are conveniently; (4) the chalk dust collection space is big.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the rearview of Fig. 1.
Fig. 3 is the enlarged drawing of A portion among Fig. 2.
Fig. 4 is the decomposition texture schematic diagram of casing.
Among the figure: 11, induced-draught fan; 12, exhaust outlet; 13, filter screen; 14, lower box; 15, loam cake; 16, air inlet; 2, brush body; 21, suction port; 22, wiping portion; 3, sweep-up pipe; 4, brush holder.
The specific embodiment
The following stated only is preferred embodiment of the present utility model, does not therefore limit protection domain of the present utility model.
Embodiment one:
See that Fig. 1 is to shown in Figure 4: a kind of electric dust absorption blackboard brush, comprise the casing that induced-draught fan 11 is housed, the brush body 2 that has suction port 21, described brush body 2 surface arrangement have wiping portion 22, and in the present embodiment, described wiping portion 22 is a bristle.Described casing is communicated with brush body 2 by sweep-up pipe 3, sweep-up pipe 3 is connected in air inlet 16 places of casing, described casing is provided with the exhaust outlet 12 for induced-draught fan 11 air drafts, the filter screen 13 that filters chalk dust is housed in the described casing, one side of filter screen 13 is installed induced-draught fan 11, and opposite side forms the collecting chamber that is communicated with described sweep-up pipe 3.In the present embodiment, described filter screen 13 is horizontally disposed, with casing be isolated into loam cake 15 that induced-draught fan 11 is housed and with the loam cake 15 detachable lower boxes that are connected 14, lower box 14 uses as described collecting chamber, described filter screen 13 is removably mounted on the lower box 14, the detachable structure of loam cake 15 and filter screen 13 is convenient to the cleaning of chalk dust, and the big capacity of lower box 14 also is convenient to the collection of chalk dust.Be appreciated that filter screen 13 also can vertically arrange or be in tilted layout, the one side is provided with induced-draught fan 11, the collecting chamber that opposite side then is communicated with described sweep-up pipe 3.
Importantly, described electric dust absorption blackboard brush comprises also and the brush holder 4 of brush body 2 couplings that in the present embodiment, brush body 2 is plugged on the brush holder 4.Described brush holder 4 is provided with brush body 2 and leaves brush holder 4 and promptly connect current supply circuit, and brush body 2 is inserted the switch that brush holder 4 promptly disconnects current supply circuit.In the present embodiment, described switch is a travel switch.When brush body inserts brush holder, push travel switch to the position of connecting the blackboard brush current supply circuit, blackboard brush begins dust suction work; When brush body is extracted socket, travel switch springs back to the position that the blackboard brush current supply circuit disconnects, and blackboard brush quits work.By the design of the trip switch on the brush holder, make brush body can promptly take i.e. usefulness, the inconvenience of having avoided the frequent operation switch to bring.
Described loam cake is connected by trip and buckle are detachable with lower box.Like this, be convenient to open loam cake cleaning dust, maintain also very convenient.
During use, brush holder 4 can be contained in a side of blackboard, extracts brush body 2, and electric dust absorption blackboard brush current supply circuit is connected, induced-draught fan 11 work, along with the bristle blackboard wiping, the chalk dust under wiping sucks along the suction port 21 of brush body, enters along sweep-up pipe 3 in the lower box 14 of casing, and under the wind-force effect, move upward, under filter screen 13 effects, the chalk dust that sucks casing is isolated in the lower box 14, and the wind after filtering through filter screen 13 is discharged from the exhaust outlet 12 of loam cake 15.
In addition, by the strainer filtering dust is set in casing, with respect to for connecing dust collecting outside the casing in addition, structure is simpler, compact, and, casing and and brush body between the wind path structure also simpler, unobstructed, therefore when effectively absorbing dust, can reduce noise.
Embodiment two:
The difference of present embodiment and embodiment one is: described switch is a microswitch.In like manner, brush body pushes microswitch and moves to the position that current supply circuit is disconnected when inserting brush holder, and microswitch sprang back to the position of connecting current supply circuit when brush body was extracted brush holder.Other structures of present embodiment and implementation and embodiment one are identical.
The foregoing description only is that the utility model technology contents is realized enumerating of design; protection domain of the present utility model is not limited only to the foregoing description, and protection domain of the present utility model may extend to those skilled in the art according to the thinkable equivalent technologies means of technical conceive of the present utility model.
Claims (9)
1. electric dust absorption blackboard brush, comprise the casing that induced-draught fan (11) are housed, the brush body (2) that has suction port (21), described brush body (2) surface arrangement has wiping portion (22), described casing is communicated with brush body (2) by sweep-up pipe (3), and described casing is provided with the exhaust outlet (12) for induced-draught fan (11) air draft; It is characterized in that: described electric dust absorption blackboard brush also comprises the brush holder (4) with brush body (2) coupling, described brush holder (4) is provided with brush body (2) and leaves brush holder (4) and promptly connect current supply circuit, and brush body (2) is inserted the switch that brush holder (4) promptly disconnects current supply circuit.
2. electric dust absorption blackboard brush according to claim 1 is characterized in that: the filter screen (13) that filters chalk dust is housed in the described casing, and a side of filter screen (13) is installed induced-draught fan (11), and opposite side forms the collecting chamber that is communicated with described sweep-up pipe (3).
3. electric dust absorption blackboard brush according to claim 2 is characterized in that: described switch is a travel switch.
4. electric dust absorption blackboard brush according to claim 2 is characterized in that: described switch is a microswitch.
5. according to claim 3 or 4 described electric dust absorption blackboard brush, it is characterized in that: described filter screen (13) level or vertical the layout.
6. electric dust absorption blackboard brush according to claim 5, it is characterized in that: described casing comprise loam cake (15) that induced-draught fan (11) are housed, with the detachable lower box that is connected of loam cake (15) (14), described filter screen (15) is removably mounted on the lower box (14).
7. electric dust absorption blackboard brush according to claim 6 is characterized in that: described wiping portion (22) is a bristle.
8. electric dust absorption blackboard brush according to claim 7 is characterized in that: described brush body (2) is plugged on the brush holder (4).
9. electric dust absorption blackboard brush according to claim 6 is characterized in that: described loam cake (15) is connected by trip and buckle are detachable with lower box (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205113643U CN201824739U (en) | 2010-08-31 | 2010-08-31 | Electric dust-collecting blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205113643U CN201824739U (en) | 2010-08-31 | 2010-08-31 | Electric dust-collecting blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201824739U true CN201824739U (en) | 2011-05-11 |
Family
ID=43963293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205113643U Expired - Fee Related CN201824739U (en) | 2010-08-31 | 2010-08-31 | Electric dust-collecting blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201824739U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102728830A (en) * | 2012-07-05 | 2012-10-17 | 芜湖市华鑫精密铸件有限公司 | Sand sucking mechanism of casting pipe |
| CN103600608A (en) * | 2013-11-29 | 2014-02-26 | 夏征梅 | Dust collection blackboard eraser |
-
2010
- 2010-08-31 CN CN2010205113643U patent/CN201824739U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102728830A (en) * | 2012-07-05 | 2012-10-17 | 芜湖市华鑫精密铸件有限公司 | Sand sucking mechanism of casting pipe |
| CN103600608A (en) * | 2013-11-29 | 2014-02-26 | 夏征梅 | Dust collection blackboard eraser |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110511 Termination date: 20120831 |