CN212313149U - Rechargeable dust absorption blackboard eraser - Google Patents
Rechargeable dust absorption blackboard eraser Download PDFInfo
- Publication number
- CN212313149U CN212313149U CN201922476839.3U CN201922476839U CN212313149U CN 212313149 U CN212313149 U CN 212313149U CN 201922476839 U CN201922476839 U CN 201922476839U CN 212313149 U CN212313149 U CN 212313149U
- Authority
- CN
- China
- Prior art keywords
- blackboard eraser
- dust
- main body
- friction device
- 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 provides a rechargeable formula dust absorption blackboard eraser, include: the blackboard eraser comprises a blackboard eraser main body, a dust absorption box, a friction device and a dust absorption device; the blackboard eraser main body is a cuboid, and the bottom surface of the blackboard eraser main body is not closed; the dust collection box is positioned on the upper side in the blackboard eraser main body; the friction device is a cuboid, the bottom surface of the friction device is provided with a friction surface capable of rubbing a blackboard, the friction device is embedded in the bottom of the blackboard eraser main body in a half mode, and the inside of the friction device is of a ventilating net structure; the dust suction device is positioned in the blackboard eraser main body and is arranged between the dust suction box and the friction device. The utility model discloses a chopsticks use assistor reasonable in design, simple structure, convenient operation adopts the generator to drive the fan, and the dust that will rub the friction surface and wipe off is inhaled the blackboard eraser in and is collected through friction device, has avoided traditional blackboard eraser dust to inhale the human body easily when wiping the blackboard, causes the condition of harm to the health.
Description
Technical Field
The utility model relates to a teaching appurtenance field especially relates to a rechargeable formula dust absorption blackboard eraser.
Background
The blackboard eraser is a basic tool used in teaching of schools and scientific research institutions, is a tool for spreading culture and harming bodies, and is threatened by dust for many teachers and engineers who suffer from aeipathia due to repeated dust pollution and organ suction. This is a long-standing problem that the scientific community cannot overcome.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a rechargeable dust absorption blackboard eraser effectively solves the problem among the background art.
The utility model provides a technical scheme is: a rechargeable dust-collecting blackboard eraser, comprising: the blackboard eraser comprises a blackboard eraser main body, a dust absorption box, a friction device and a dust absorption device;
the blackboard eraser main body is a cuboid, and the bottom surface of the blackboard eraser main body is not closed;
the dust collection box is positioned on the upper side in the blackboard eraser main body;
the friction device is a cuboid, the bottom surface of the friction device is provided with a friction surface capable of rubbing a blackboard, the friction device is embedded in the bottom of the blackboard eraser main body in a half mode, and the inside of the friction device is of a ventilating net structure;
the dust collection device is positioned in the blackboard eraser main body and is arranged between the dust collection box and the friction device, a central shaft is arranged in the middle of the dust collection device, a driving gear is fixed on the central shaft, a driven gear is arranged beside the driving gear and in meshed contact with the driving gear, a fan is arranged on the driven gear, the central shaft and the driving gear rotate under the driving of a motor, and the driven gear and the fan can rotate under the driving of the driving gear.
Preferably, two driven gears and a fan are provided on both sides of the driving gear.
Further preferably, a handle is arranged on the upper surface of the blackboard eraser body.
Preferably, an opening is formed in the surface of one side of the blackboard eraser main body, dust is poured into the dust suction box through the opening, and an air outlet is formed in the surface of the other side of the blackboard eraser main body.
Preferably, a charging port is formed in the side surface of the blackboard eraser main body and used for charging the engine, a charging seat is arranged on the side surface of the blackboard eraser main body and used for charging the dust collection blackboard eraser, and the blackboard eraser main body is vertically placed into the charging seat for charging.
The utility model provides a chargeable formula dust absorption blackboard eraser compares prior art, the utility model discloses a dust absorption blackboard eraser reasonable in design, simple structure, convenient operation adopts the generator to drive the fan, inhales the blackboard eraser in through friction device with the dust that the friction surface was wiped and collects, has avoided traditional blackboard eraser dust to inhale the human body easily when erasing the blackboard, causes the condition of harm to the health of the human body.
Drawings
Fig. 1 is a schematic structural diagram provided by the present invention;
fig. 2 is a schematic structural view of the dust suction device provided by the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, the utility model provides a rechargeable dust-absorbing blackboard eraser, include: the blackboard eraser comprises a blackboard eraser body 1, a dust absorption box 2, a friction device 3 and a dust absorption device 4; the blackboard eraser main body 1 is a cuboid, and the bottom surface of the blackboard eraser main body is not closed; the dust collection box 2 is positioned on the upper side in the blackboard eraser main body 1; the friction device 3 is a cuboid, the bottom surface of the friction device is provided with a friction surface capable of rubbing a blackboard, the friction device 3 is embedded at the bottom of the blackboard eraser main body 1 in half, and the inside of the friction device 3 is of a ventilating net structure; the dust suction device 4 is positioned in the blackboard eraser main body 1 and is arranged between the dust suction box 2 and the friction device 3, a central shaft 401 is arranged between the dust suction devices 4, a driving gear 402 is fixed on the central shaft 401, a driven gear 403 is arranged beside the driving gear 402, the driven gear 403 is in meshed contact with the driving gear 402, a fan 404 is arranged on the driven gear 403, the central shaft 401 and the driving gear 402 are driven by a motor 405 to rotate, and the driven gear 403 and the fan 404 can rotate through the driving gear 402.
As a technical improvement, two driven gears 403 and a fan 404 are arranged on two sides of the driving gear 402.
As the improvement of the technical scheme, a handle 5 is arranged on the upper surface of the blackboard eraser main body 1.
As an improvement of the technical scheme, an opening is formed in the surface of one side of the blackboard eraser body 1, dust is poured into the dust suction box 2 through the opening, and an air outlet is formed in the surface of the other side of the blackboard eraser body.
As an improvement of the technical scheme, a charging port is arranged on the side surface of the blackboard eraser main body 1 and can be used for charging an engine, a charging seat 6 for charging the dust collection blackboard eraser is arranged, and the blackboard eraser main body 1 is vertically placed in the charging seat 6 for charging.
The principle of the utility model is that: the motor drives the central shaft and the driving gear to rotate, the driven gear starts to rotate due to meshing contact with the driving gear, the fan on the driven gear also rotates, the fan is driven at a high speed to discharge air from the air outlet at a high speed, negative pressure is generated inside the blackboard eraser, and under the action of internal and external pressure, dust in the friction device is sucked into the blackboard eraser and collected to the dust suction box.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.
Claims (5)
1. A rechargeable dust-absorbing blackboard eraser, comprising: the blackboard eraser comprises a blackboard eraser body (1), a dust collection box (2), a friction device (3) and a dust collection device (4);
the blackboard eraser main body (1) is a cuboid, and the bottom surface of the blackboard eraser main body is not closed;
the dust collection box (2) is positioned on the upper side in the blackboard eraser main body (1);
the blackboard eraser is characterized in that the friction device (3) is a cuboid, the bottom surface of the friction device is provided with a friction surface capable of rubbing a blackboard, the friction device (3) is embedded at the bottom of the blackboard eraser main body (1) in half, and the inside of the friction device (3) is of a ventilating net structure;
dust extraction (4) are located blackboard eraser main part (1), between dust absorption box (2) and friction device (3), be equipped with central axis (401) in the middle of dust extraction (4), be fixed with driving gear (402) on central axis (401), driving gear (402) side is equipped with driven gear (403), driven gear (403) and driving gear (402) meshing contact, be equipped with fan (404) on driven gear (403), central axis (401) and driving gear (402) rotate under motor (405) drive, driven gear (403) and fan (404) can rotate through driving gear (402) drive.
2. A rechargeable dust-absorbing blackboard eraser according to claim 1, characterised in that two driven gears (403) and a fan (404) are provided on either side of the driving gear (402).
3. The rechargeable dust-absorbing blackboard eraser according to claim 1, wherein the blackboard eraser body (1) is provided with a handle (5) on the upper surface.
4. The rechargeable dust-absorbing blackboard eraser as claimed in claim 1, wherein the blackboard eraser body (1) has an opening on one side surface, the dust box (2) can be dumped at the opening, and an air outlet is arranged on the other side surface.
5. The rechargeable dust-absorbing blackboard eraser according to claim 1, wherein a charging port is formed in the side surface of the blackboard eraser body (1) for charging the engine, a charging seat (6) for charging the dust-absorbing blackboard eraser is provided, and the blackboard eraser body (1) is vertically placed in the charging seat (6) for charging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922476839.3U CN212313149U (en) | 2019-12-31 | 2019-12-31 | Rechargeable dust absorption blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922476839.3U CN212313149U (en) | 2019-12-31 | 2019-12-31 | Rechargeable dust absorption blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212313149U true CN212313149U (en) | 2021-01-08 |
Family
ID=74030535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922476839.3U Expired - Fee Related CN212313149U (en) | 2019-12-31 | 2019-12-31 | Rechargeable dust absorption blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212313149U (en) |
-
2019
- 2019-12-31 CN CN201922476839.3U patent/CN212313149U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210108 Termination date: 20211231 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |