CN211280437U - Blackboard eraser with dust suction device - Google Patents
Blackboard eraser with dust suction device Download PDFInfo
- Publication number
- CN211280437U CN211280437U CN201921734849.6U CN201921734849U CN211280437U CN 211280437 U CN211280437 U CN 211280437U CN 201921734849 U CN201921734849 U CN 201921734849U CN 211280437 U CN211280437 U CN 211280437U
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- CN
- China
- Prior art keywords
- plate
- dust suction
- suction device
- dust
- erasing
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- Expired - Fee Related
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Abstract
The utility model provides a blackboard eraser with a dust suction device, which comprises a shell, an erasing device, a vibrating plate, a spraying device, a filter plate, a dust suction device and an air outlet; wherein a vibration plate is arranged below the erasing device; the spraying device is arranged below the vibrating plate; the filter plate is arranged below the spraying device; the dust suction device is arranged below the filter plate; the air outlet is arranged at the lower part of the shell and is positioned below the dust suction device; the erasing device comprises rollers which are symmetrically arranged, a plurality of erasing heads which are arranged on the rollers in a surrounding mode, and a scraping and brushing plate which is arranged on the shell. The whole dust removal process of the blackboard eraser is finished in a closed environment, so that the scattering of chalk dust is avoided; meanwhile, the scraping and brushing plate is used for timely removing chalk dust on the eraser head, and the effectiveness of collecting the chalk dust is improved.
Description
Technical Field
The utility model relates to a teaching aid, in particular to an eraser with a dust suction device.
Background
At present, in teaching engineering, most common teaching tools of blackboards and chalks are used, teachers teach knowledge to students by listing knowledge points needing to be infused on the blackboards, chalk notes on the blackboards need to be erased after blackboard writing is finished, and chalk dust is prone to being scattered in the air in the erasing process of common blackboard erasers. The diameter of chalk dust particles is 7-100 microns, but the particles with the diameter of 7-10 microns enter the lung of a human body along with breathing, so that the respiratory function of the lung is reduced, and the chalk dust particles are harmful to the physical health of teachers and students.
Therefore, the dust collection blackboard eraser is provided, and the problem of scattering of chalk dust in the process of erasing the blackboard is solved.
SUMMERY OF THE UTILITY MODEL
The utility model provides an eraser with a dust collector based on at least one of the above technical problems, the whole dust removing process is completed in a closed environment, and the scattering of chalk dust is avoided; meanwhile, the scraping and brushing plate is used for timely removing chalk dust on the eraser head, and the effectiveness of collecting the chalk dust is improved.
In view of the above, the utility model provides an eraser with a dust collector, which comprises a shell, an erasing device, a vibrating plate, a spraying device, a filter plate, a dust collector and an air outlet; wherein a vibration plate is arranged below the erasing device; the spraying device is arranged below the vibrating plate; the filter plate is arranged below the spraying device; the dust suction device is arranged below the filter plate; the air outlet is arranged at the lower part of the shell and is positioned below the dust suction device;
the erasing device comprises rollers which are symmetrically arranged, a plurality of erasing heads which are arranged on the rollers in a surrounding mode, and a scraping and brushing plate which is arranged on the shell.
Preferably, a support is arranged between the rollers, and a scraping and brushing plate is arranged on the support.
Preferably, the filter plate is replaceable.
In the utility model, the support and the scraping brush plate, namely the three-sided scraping brush plate, can timely remove the chalk dust on the scraping head, so that the chalk dust can timely fall on the vibrating plate below the erasing device, and fall off through the vibration of the vibrating plate, and combined with the water mist to fall on the filter plate; the effectiveness of chalk dust collection is improved.
Furthermore, a sealing bag is arranged at the opening of the shell.
The sealing bag in the utility model is firstly contacted with the blackboard to be cleaned, and when the sealing bag is contacted with the blackboard, the sealing bag is sunken to generate suction to the blackboard; meanwhile, the roller rotates, the erasing head rotates along with the roller to contact the blackboard, and the handwriting on the blackboard is erased.
Furthermore, the dust suction device is a suction fan.
Through the technical scheme, the utility model provides a blackboard eraser with a dust collection device, the whole dust collection process is completed in a closed environment, and the scattering of chalk dust is avoided; meanwhile, the scraping and brushing plate is used for timely removing chalk dust on the eraser head, and the effectiveness of collecting the chalk dust is improved.
Drawings
Fig. 1 shows a rear view of the structure of the blackboard eraser of the invention.
Fig. 2 shows a top view of the erasing device of the present invention.
Wherein, 1 is a shell, 2 is a vibration plate, 3 is a spraying device, 4 is a filter plate, 5 is an air outlet, 6 is a suction fan, 7 is a roller, 8 is a wiping head, 9 is a scraping and brushing plate, 10 is a sealing bag, and 11 is a bracket.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
The utility model provides a blackboard eraser with a dust collection device, the whole dust collection process is completed in a closed environment, and the scattering of chalk dust is avoided; meanwhile, the structure of the chalk dust collecting device is shown in the figure 1-2, and the chalk dust on the eraser head is timely removed by the scraping and brushing plate, so that the effectiveness of chalk dust collection is improved.
Referring to fig. 1-2, the utility model provides a blackboard eraser with a dust suction device, which comprises a shell 1, an erasing device, a vibrating plate 2, a spraying device 3, a filter plate 4, a dust suction device and an air outlet 5; wherein a vibration plate 2 is arranged below the erasing device; the spraying device 3 is arranged below the vibrating plate 2; the filter plate 4 is arranged below the spraying device 3; the dust suction device is arranged below the filter plate 4; the air outlet 5 is arranged at the lower part of the shell 1 and is positioned below the dust suction device;
the erasing device comprises rollers 7 which are symmetrically arranged, a plurality of erasing heads 8 which are arranged on the rollers 7 in a surrounding mode, and a scraping and brushing plate 9 which is arranged on the shell 1.
In order to further optimize the technical scheme, a support 11 is arranged between the rollers 7, and a scraping and brushing plate 9 is arranged on the support 11.
The filter plate 4 can be replaced by drawing for further optimizing the technical scheme.
In order to further optimize the technical scheme, a sealing bag 10 is arranged at the opening of the shell 1.
In order to further optimize the technical scheme, the dust suction device is a suction fan 6.
The working principle and the using method of the embodiment are as follows: the sealing bag 10 in the utility model contacts with the blackboard to be cleaned, when the sealing bag 10 contacts with the blackboard, the sealing bag 10 is sunken to generate suction to the blackboard; meanwhile, the roller 7 rotates, the erasing head 8 rotates along with the roller 7 to contact the blackboard, and the handwriting on the blackboard is erased; the scraping and brushing plate 9 can timely remove the chalk dust on the scraping head 8, so that the chalk dust can timely fall onto the vibration plate 2 below the erasing device, fall under the vibration of the vibration plate 2, be combined with the water mist sprayed out by the spraying device 3, fall onto the filter plate 4, and timely replace the filter plate 4; and finally, adsorbing the residual chalk dust by using a suction fan 6, and sucking out the chalk dust through an air outlet 5.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. A blackboard eraser with a dust suction device is characterized by comprising a shell, an erasing device, a vibration plate, a spraying device, a filter plate, the dust suction device and an air outlet; wherein the vibrating plate is arranged below the erasing device; the spraying device is arranged below the vibrating plate; the filter plate is arranged below the spraying device; the dust suction device is arranged below the filter plate; the air outlet is arranged at the lower part of the shell and is positioned below the dust suction device;
the wiping device comprises rollers which are symmetrically arranged, a plurality of wiping heads which are arranged on the rollers in a surrounding mode, and a wiping plate which is arranged on the shell.
2. The eraser with a dust suction device as claimed in claim 1, wherein a sealing bag is provided at the opening of said housing.
3. The blackboard eraser with a dust suction device according to claim 1, wherein the dust suction device is a suction fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921734849.6U CN211280437U (en) | 2019-10-16 | 2019-10-16 | Blackboard eraser with dust suction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921734849.6U CN211280437U (en) | 2019-10-16 | 2019-10-16 | Blackboard eraser with dust suction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211280437U true CN211280437U (en) | 2020-08-18 |
Family
ID=72027639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921734849.6U Expired - Fee Related CN211280437U (en) | 2019-10-16 | 2019-10-16 | Blackboard eraser with dust suction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211280437U (en) |
-
2019
- 2019-10-16 CN CN201921734849.6U patent/CN211280437U/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: 20200818 Termination date: 20211016 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |