CN202608369U - Dedusting blackboard eraser - Google Patents
Dedusting blackboard eraser Download PDFInfo
- Publication number
- CN202608369U CN202608369U CN 201220019109 CN201220019109U CN202608369U CN 202608369 U CN202608369 U CN 202608369U CN 201220019109 CN201220019109 CN 201220019109 CN 201220019109 U CN201220019109 U CN 201220019109U CN 202608369 U CN202608369 U CN 202608369U
- Authority
- CN
- China
- Prior art keywords
- blackboard eraser
- dust
- dedusting
- induced
- air intake
- 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 discloses a dedusting blackboard eraser which comprises a suction fan, an air intake duct, a dedusting bag, an exhaust vent, a switch and a battery; and the dedusting blackboard eraser is characterized in that dust produced in the process of cleaning the blackboard is sucked into the inside of the dedusting blackboard eraser by using the negative pressure generated when the suction fan is running, thereby avoiding dust flying. The dedusting blackboard eraser disclosed by the utility model has the beneficial effects that dust produced in the process of cleaning the blackboard is sucked into the dedusting bag in dedusting blackboard eraser, so that dust flying is avoided, and the physical health of teachers and students is protected.
Description
Technical field
The utility model relates to a kind of blackboard eraser, particularly a kind of dust-removing blackboard eraser that utilizes the dust catcher principle.
Background technology
When wiping the writing that chalk writes with blackboard eraser, cause dust to fly away aloft, numerous teachers of serious threat and classmate's is healthy.Though released dust-free chalk, only be to have reduced dust pollution to a certain extent, do not tackle the problem at its root.
Summary of the invention
The utility model provides a kind of can effectively the elimination to produce the dust-removing blackboard eraser that dust disperses when erasing the board in order to overcome the deficiency of above technology.
The utility model is realized through following measure:
A kind of dust-removing blackboard eraser includes induced-draught fan, air intake duct, dust settling pocket, steam vent, switch, battery; It is characterized in that: dust-removing blackboard eraser set inside one induced-draught fan, the positive air intake duct of induced-draught fan air intake duct and blackboard eraser closely links to each other, and the induced-draught fan muzzle front end of giving vent to anger has a removable dust settling pocket, and gas off-take is connected to the steam vent of blackboard eraser side; Except that steam vent one side, other three face of dust-removing blackboard eraser side has air intake duct.
Induced-draught fan is made battery or rechargeable battery dry up for power is provided.
The beneficial effect of the utility model is: the dust that produces when erasing the board sucks the inner dust settling pocket of dust-removing blackboard eraser, avoids dust to disperse, and protects that numerous teachers and classmates' is healthy.
Description of drawings
Fig. 1 is the plan structure figure of the utility model.
Fig. 2 is the design sketch of the utility model.
Wherein, 1, induced-draught fan; 2, air intake duct; 3, dust settling pocket; 4, steam vent; 5, switch; 6, battery.
The specific embodiment
Below in conjunction with embodiment the utility model is further described, but not as the qualification of the utility model:
Embodiment: a kind of dust-removing blackboard eraser as depicted in figs. 1 and 2 includes induced-draught fan 1, air intake duct 2, dust settling pocket 3, steam vent 4, switch 5, battery 6; Its special feature is: the negative pressure that produces when utilizing induced-draught fan 1 running, the dust that produces when erasing the board sucks dust-removing blackboard eraser inside, avoids dust to disperse.
The front of the dust-removing blackboard eraser of the utility model and common sponge blackboard eraser positive basic identical removes other three face of steam vent one side and has air intake duct 2.
Dust-removing blackboard eraser set inside one induced-draught fan 1 of the utility model, the positive air intake duct 2 of its air intake duct and blackboard eraser closely links to each other, and the blower fan muzzle front end of giving vent to anger has a removable dust settling pocket 3, and its gas off-take is connected to the steam vent 4 that is located at the blackboard eraser side.
The dust-removing blackboard eraser of the utility model makes battery dry up or rechargeable battery is that induced-draught fan 1 provides power.
During use, open switch 5 after, blower fan work, air intake duct 2 places positive at blackboard eraser produce negative pressure, the dust suction that produces when erasing the board; The gas that contains dust is during through dust settling pocket 3, and dust is stayed in the bag, and clean air is discharged; When dust settling pocket 3 is filled, can open blackboard eraser, take out dust settling pocket 3, pour the chalk powder of collecting into refuse bag, the dust settling pocket 3 after the cleaning is reusable, also can use disposable dust settling pocket 3.
The beneficial effect of the utility model is: the dust that produces when erasing the board sucks the inner dust settling pocket 3 of dust-removing blackboard eraser, avoids dust to disperse, and protects that numerous teachers and classmates' is healthy.
Above embodiment, the utility model specific embodiment a kind of preferably just is in the protection domain that common variation that those skilled in the art carry out in the utility model technical scheme scope and replacement are included in the utility model.
Claims (2)
1. a dust-removing blackboard eraser includes induced-draught fan (1), air intake duct (2), dust settling pocket (3), steam vent (4), switch (5), battery (6); It is characterized in that: dust-removing blackboard eraser set inside one induced-draught fan (1); Induced-draught fan (1) air intake duct closely links to each other with the positive air intake duct (2) of blackboard eraser; Induced-draught fan (1) the muzzle front end of giving vent to anger has a removable dust settling pocket (3), and gas off-take is connected to the steam vent (4) of blackboard eraser side; Except that steam vent (4) one sides, other three face of dust-removing blackboard eraser side has air intake duct (2).
2. a kind of dust-removing blackboard eraser according to claim 1 is characterized in that: battery made dry up by induced-draught fan (1) or rechargeable battery provides power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220019109 CN202608369U (en) | 2012-01-17 | 2012-01-17 | Dedusting blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220019109 CN202608369U (en) | 2012-01-17 | 2012-01-17 | Dedusting blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202608369U true CN202608369U (en) | 2012-12-19 |
Family
ID=47342096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220019109 Expired - Fee Related CN202608369U (en) | 2012-01-17 | 2012-01-17 | Dedusting blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202608369U (en) |
-
2012
- 2012-01-17 CN CN 201220019109 patent/CN202608369U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121219 Termination date: 20140117 |