CN201280015Y - Absorbent blackboard eraser convenient to discharge dust - Google Patents
Absorbent blackboard eraser convenient to discharge dust Download PDFInfo
- Publication number
- CN201280015Y CN201280015Y CNU200820075046XU CN200820075046U CN201280015Y CN 201280015 Y CN201280015 Y CN 201280015Y CN U200820075046X U CNU200820075046X U CN U200820075046XU CN 200820075046 U CN200820075046 U CN 200820075046U CN 201280015 Y CN201280015 Y CN 201280015Y
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- dust
- blackboard eraser
- housing
- dust collection
- storage chamber
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Abstract
A dust-absorption blackboard eraser with convenient dust exhaust comprises a power switch arranged on the upper part of a housing; a hollowed casing connected with the lower part of the housing; a brush arranged on the bottom of the housing; a rubber dust stopping frame fixed at the periphery of the brush; and a dust collection bag connected with the tail part of the blackboard, wherein a small motor, a battery and an arc-shaped blade are sequentially arranged inside the blackboard from top to bottom; and the arc-shaped blade is located in a dust collection chamber on the lower part of the housing. The blackboard eraser is mainly characterized in that the dust collection chamber has a hollowed casing, and filter cloths arranged at periphery of the hollowed casing; and a rotary air lock is arranged at the tail part of the dust collection chamber and is connected with the dust collection bag. The dust-absorption blackboard eraser is the improvement of the conventional dust-absorption blackboard eraser, the hollowed casing and the filter can solve the pressure balance problem in the dust collection chamber, and the rotary air lock can achieve automatic dust exhaust. In teaching activities, the dust-absorption blackboard eraser can be used conveniently to reduce indoor dust pollution and ensure health of teachers and students.
Description
Technical field
The utility model relates to a kind of dust absorption blackboard eraser of being convenient to dust discharge, belongs to the realia field.
Background technology
Blackboard eraser is the essential product in the teaching, the ordinary blackboard eraser small volume and less weight, and suitable teacher wipes writing on the blackboard or local the modification, but can cause chalk dust to fly upward, and pollutes indoor air environment, goes down for a long time, can influence the healthy of teacher and classmates.Therefore, a lot of people design the invention novel blackboard eraser and solve this problem, and electric dust absorption blackboard eraser is exactly common a kind of.But general electric dust absorption blackboard eraser is only paid attention to control of dust, and during driven by motor blade rotation dust suction, the dust storage chamber internal pressure can raise; If there is not an air outlet, the heavy indoor meeting of collection becomes malleation, and dust will be difficult to be inhaled into again, therefore should adopt the device that leaks out to come the balance collection to sink indoor pressure.
Summary of the invention
In order to solve the heavy indoor pressure balance problem of collection, the utility model has adopted the hollow out shell, can effectively keep the pressure balance in the dust storage chamber, and this blackboard eraser also improves dust exhaust, adopts the swinging flapper can realize automatic dust discharge.
The technical scheme that its technical problem that solves the utility model adopts is: housing top is equipped with power switch, the bottom connects the hollow out shell, and the bottom is equipped with hairbrush, has circular air inlet in the middle of the hairbrush, be fixed with the rubber ash blocking frame around the hairbrush, the blackboard eraser afterbody connects dust bag.Blackboard eraser inside is equipped with small-sized (3V) motor, battery, curved blade from the top down successively, and its middle-size and small-size (3V) motor and battery are positioned at housing top, and curved blade is positioned at the dust storage chamber of lower housing portion.Dust storage chamber adopts the hollow out shell, is furnished with filter cloth all around, and dust storage chamber (11) afterbody is equipped with swinging flapper (12) and is connected to dust bag (5).
Motor is by battery-operated, driving the blade rotation makes surrounding air form the swirling air stream that rises, dust is with air motion, enter dust storage chamber from the air inlet of outer casing bottom, the air-flow that breaks away from blade can be because of inertia diffusion and discharge from the hollow out shell around dust storage chamber, then can be blocked by filter cloth with the dust of air motion.Filter cloth can be selected materials such as RIPSTOP, terylene, Orlon for use, and its resistance is low, long service life, cost is low, efficient is higher.The dust storage chamber afterbody is equipped with the swinging flapper, when the dust of dust storage chamber afterbody accumulates to when a certain amount of, can oppress scraper plate and slowly rotate, and dust is sent to dust bag, thereby realizes automatic dust discharge.
The beneficial effects of the utility model are, the utility model improves the conventional electric dust absorption blackboard eraser, can be used for teaching more easily and dust is flown upward everywhere, guarantee that teachers and students' is healthy.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a front view of the present utility model.
Fig. 2 is a cross section of the present utility model structural map.
Fig. 3 is the structural map of swinging flapper.
1. housings among the figure, 2. power switch, 3. hollow out shell, 4. rubber ash blocking frame, 5. dust bag, 6. small-sized (3V) motor, 7. battery, 8. curved blade, 9. filter cloth, 10. hairbrush, 11. dust storage chamber, 12. swinging flappers, 13. air inlets, 14. dust discharge passages, 15. scraper plates.
The specific embodiment
In Fig. 1, housing (1) top is equipped with power switch (2), and the bottom connects hollow out shell (3), and bottom margin is fixed with rubber ash blocking frame (4), and the blackboard eraser afterbody connects dust bag (5).
In Fig. 2, blackboard eraser inside is equipped with small-sized (3V) motor (6), battery (7), curved blade (8) from the top down successively, and its middle-size and small-size (3V) motor (6) and battery (7) are positioned at housing (1), and curved blade (8) is positioned at dust storage chamber (11).Dust storage chamber (11) adopts hollow out shell (3), is furnished with filter cloth (9) all around; Dust storage chamber (11) bottom is equipped with hairbrush (10), has circular air inlet (13) in the middle of the hairbrush (10); Dust storage chamber (11) afterbody is equipped with swinging flapper (12) and is connected to dust bag (5).
In Fig. 3, dust is fallen in the groove between the scraper plate by dust discharge passage (14) by dust storage chamber (11), can promote scraper plate when a certain amount of and slowly rotates when running up to, thereby dust is sent in the dust bag (5).
When using the utility model blackboard eraser to erase the board, at first turn on the power switch (2), battery (7) begins to drive small-sized (3V) motor (6) work, thereby drive curved blade (8) rotation, make surrounding air form the eddy airstream that rises, dust has circular air inlet (13) with air-flow from hairbrush (10) centre and enters in the dust storage chamber (11).In dust storage chamber (11), the air-flow that breaks away from curved blade (8) can be discharged to diffusion all around and from hollow out shell (3) because of inertia, dust with air motion then can be blocked by filter cloth (9), has so both guaranteed the pressure balance in the dust storage chamber (11), can not cause air pollution again.Blackboard eraser tilts when erasing the board, dust can accumulate in the dust arrester afterbody because of the gravity effect, and falls in the groove between the scraper plate by dust discharge passage (14), can promote scraper plate when a certain amount of and slowly rotates when running up to, thereby dust is sent in the dust bag (5), realized automatic dust discharge.Because hairbrush (10) is the barrier effect of rubber ash blocking frame (4) on every side, is difficult for when erasing the board causing large-area dust from flying, thereby has guaranteed the cleaning of room air, helps teachers and students' health.
Claims (1)
1. dust absorption blackboard eraser of being convenient to dust discharge, housing (1) top is equipped with power switch (2), the bottom connects hollow out shell (3), the bottom is equipped with hairbrush (10), have circular air inlet (13) in the middle of the hairbrush (10), hairbrush (10) is fixed with rubber ash blocking frame (4) on every side, the blackboard eraser afterbody connects dust bag (5), blackboard eraser inside is equipped with micro-machine (6), battery (7), curved blade (8) from the top down successively, and curved blade (8) is positioned at the dust storage chamber (11) of housing (1) bottom; It is characterized in that dust storage chamber (11) adopts hollow out shell (3), be furnished with filter cloth (9) all around, dust storage chamber (11) afterbody is equipped with swinging flapper (12) and is connected to dust bag (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820075046XU CN201280015Y (en) | 2008-06-17 | 2008-06-17 | Absorbent blackboard eraser convenient to discharge dust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820075046XU CN201280015Y (en) | 2008-06-17 | 2008-06-17 | Absorbent blackboard eraser convenient to discharge dust |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201280015Y true CN201280015Y (en) | 2009-07-29 |
Family
ID=40926901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820075046XU Expired - Fee Related CN201280015Y (en) | 2008-06-17 | 2008-06-17 | Absorbent blackboard eraser convenient to discharge dust |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201280015Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103921597A (en) * | 2013-09-26 | 2014-07-16 | 郭圣君 | Automatic ash handling device of blackboard eraser |
| CN106427323A (en) * | 2016-10-14 | 2017-02-22 | 上海电机学院 | Automatic dust suction type chalk eraser |
| CN106739705A (en) * | 2017-03-09 | 2017-05-31 | 苏州经贸职业技术学院 | A kind of dust absorption blackboard eraser |
| CN107596801A (en) * | 2017-09-13 | 2018-01-19 | 广西南宁侨盛木业有限责任公司 | A kind of dust room |
| CN108167582A (en) * | 2018-03-02 | 2018-06-15 | 盐城融凡纺织制衣有限公司 | A kind of easy-to-dismount weaving frame of textile machines |
-
2008
- 2008-06-17 CN CNU200820075046XU patent/CN201280015Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103921597A (en) * | 2013-09-26 | 2014-07-16 | 郭圣君 | Automatic ash handling device of blackboard eraser |
| CN103921597B (en) * | 2013-09-26 | 2016-06-08 | 丁玉清 | A kind of blackboard eraser automatic ash eliminator |
| CN106427323A (en) * | 2016-10-14 | 2017-02-22 | 上海电机学院 | Automatic dust suction type chalk eraser |
| CN106739705A (en) * | 2017-03-09 | 2017-05-31 | 苏州经贸职业技术学院 | A kind of dust absorption blackboard eraser |
| CN107596801A (en) * | 2017-09-13 | 2018-01-19 | 广西南宁侨盛木业有限责任公司 | A kind of dust room |
| CN107596801B (en) * | 2017-09-13 | 2023-08-08 | 广西南宁侨盛木业有限责任公司 | Dust collection room |
| CN108167582A (en) * | 2018-03-02 | 2018-06-15 | 盐城融凡纺织制衣有限公司 | A kind of easy-to-dismount weaving frame of textile machines |
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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: 20090729 Termination date: 20110617 |