CN212267091U - Environment-friendly dust-free blackboard eraser - Google Patents
Environment-friendly dust-free blackboard eraser Download PDFInfo
- Publication number
- CN212267091U CN212267091U CN201822059443.4U CN201822059443U CN212267091U CN 212267091 U CN212267091 U CN 212267091U CN 201822059443 U CN201822059443 U CN 201822059443U CN 212267091 U CN212267091 U CN 212267091U
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- China
- Prior art keywords
- dust
- blackboard eraser
- environment
- shell
- absorption cotton
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- 239000000428 dust Substances 0.000 claims abstract description 86
- 229920000742 Cotton Polymers 0.000 claims abstract description 44
- 238000010521 absorption reaction Methods 0.000 claims abstract description 30
- 230000004308 accommodation Effects 0.000 claims description 11
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 238000005192 partition Methods 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000004064 recycling Methods 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 description 9
- 230000006378 damage Effects 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 230000007613 environmental effect Effects 0.000 description 3
- 230000001413 cellular effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 210000004072 lung Anatomy 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Abstract
The utility model discloses an environment-friendly dust-free blackboard eraser, which comprises a shell with an opening at the upper end, wherein a filter screen, a strong magnetic stripe and dust-absorbing cotton are sequentially arranged in the shell from top to bottom, the dust-absorbing cotton is arranged at intervals with the bottom of the shell and forms a containing space, the bottom of any side surface of the shell is provided with a dust outlet, the dust outlet is communicated with the containing space, a gap is reserved between the dust-absorbing cotton and any side surface of the shell, the gap is communicated with the containing space, and a plurality of wiping strips which are transversely arranged are adhered on the filter screen; the blackboard is cleaned and quickly erased; not only can collect chalk dust, but also can be intensively poured and treated; the dust absorption cotton is convenient to replace and simple to use; the structure is simple, and the practicability is strong; the cost is low, and the mass production can be realized; the filter layer net, the dust absorption cotton and the like can be replaced, the recycling is realized, the cost is reduced, and the resources are saved.
Description
Technical Field
The utility model relates to a blackboard eraser, more specifically say a bit, relate to a dustless blackboard eraser of environmental protection, belong to the teaching aid field.
Background
The blackboard is an essential tool in teaching and is used for erasing the handwriting written by chalk on the blackboard. When the blackboard eraser is used for erasing chalk marks on a blackboard, the existing blackboard eraser cannot absorb chalk dust, so that the chalk dust can fly everywhere when a student or a teacher erases the blackboard, the environment inside a classroom is influenced, pollution is caused, meanwhile, certain harm is brought to the health of the teacher and the student, in the continuous repeated process, the chalk dust enters the lungs of the teacher and the student as the largest pollution source, lung deposition is caused, potential safety hazards are brought to health, especially, the harm to the student and the teacher sitting in front row is largest, great body injury is easy to cause, the blackboard eraser with the filter screen in the current market has a poor dust adsorption effect, meanwhile, dust in the blackboard eraser in the later period is difficult to clean, and the problem is solved in an urgent need of the blackboard eraser which can remove dust and is environment-friendly.
SUMMERY OF THE UTILITY MODEL
In order to solve the prior art problem, the utility model provides an environmental protection dust-free blackboard eraser with technical characterstic such as dustless, pollution-free, simple structure, practicality are strong.
In order to achieve the above purpose, the utility model is realized by the following technical scheme:
the utility model provides an dustless blackboard eraser of environmental protection, includes the casing of upper end opening, and top-down is in filter screen, powerful magnetic stripe, dust absorption cotton have set gradually in the casing, the dust absorption cotton sets up and is formed with accommodation space with casing bottom interval, the dirt mouth has been seted up to the bottom of any side of casing, the dirt mouth sets up with accommodation space intercommunication, the clearance is left with any side of casing to the dust absorption cotton, clearance and accommodation space intercommunication, the adhesion has a plurality of transverse arrangement's wiping strip on the filter screen.
As an improvement, the rubbing strips are arranged at equal intervals, and two ends of each rubbing strip extend and are respectively adhered to the left side surface and the right side surface of the shell.
As an improvement, transversely be provided with a plurality of baffle in the accommodation space, the baffle is perpendicular and 1 bottom of casing and divide into a plurality of ash storage tank with accommodation space, ash storage tank communicates with each other with the dust outlet.
As an improvement, the dust outlet is arranged at the bottom of the right side surface of the shell, and a gap is reserved between the dust absorption cotton and the right side surface of the shell.
As an improvement, the lower surface of the filter layer net is provided with a containing groove, and the containing groove and the powerful magnetic stripe are the same in size and dimension.
As an improvement, the filter layer net comprises a first layer of honeycomb net and a second layer of honeycomb net, and a plurality of carbon wires are connected between the first layer of honeycomb net and the second layer of honeycomb net.
As an improvement, the rubbing strip comprises a silk strip, and a flocking core is arranged in the silk strip.
As an improvement, the left side surface and the right side surface of the shell are respectively provided with a clapboard which can be inserted by a bolt; and the joint of the two adjacent side surfaces on the shell is provided with an arc-shaped chamfer.
As an improvement, a drawer is arranged in the dust outlet in a drawable manner and is connected with dust-absorbing cotton.
As an improvement, the dust absorption cotton is polyester dust absorption cotton.
Has the advantages that: the environment is protected, no pollution is caused, and no chalk dust flies; the blackboard is cleaned and quickly erased; not only can collect chalk dust, but also can be intensively poured and treated; the dust absorption cotton is convenient to replace and simple to use; the structure is simple, and the practicability is strong; the cost is low, and the mass production can be realized; the filter layer net, the dust absorption cotton and the like can be replaced, the recycling is realized, the cost is reduced, and the resources are saved.
Drawings
Fig. 1 is an exploded view of the present invention.
Fig. 2 is a perspective view of the present invention.
Fig. 3 is a schematic view of the dust-absorbing cotton of the present invention installed in the housing.
Fig. 4 is a structure diagram of the filter layer net of the present invention.
Fig. 5 is a cross-sectional view of the wiping strip of the present invention.
In the figure: 1-a shell; 2-a filter layer net; 3-strong magnetic strip; 4-dust-absorbing cotton; 5-an accommodation space; 6-a dust outlet; 7-clearance; 8-rubbing the strips; 9-a baffle plate; 10-ash storage tank; 11-a first layer of cellular network; 12-a second layer cellular network; 13-carbon wire; 14-a flocked core; 15-a separator; 16-a receiving groove; 17-silk strips.
Detailed Description
The present invention will be further described with reference to the drawings attached to the specification, but the present invention is not limited to the following embodiments.
As shown in fig. 1-5, a specific embodiment of an environment-friendly dust-free blackboard eraser is provided, which includes a housing 1 with an opening at the upper end, a filter layer net 2, a strong magnetic stripe 3, and dust-absorbing cotton 4 sequentially disposed in the housing 1 from top to bottom, wherein the dust-absorbing cotton 4 is spaced from the bottom of the housing 1 and forms an accommodating space 5 for collecting larger particles of dust, a dust outlet 6 is disposed at the bottom of any side surface of the housing 1, the dust outlet 6 is communicated with the accommodating space 5, so that chalk dust in the accommodating space 5 can be poured out through the dust outlet 6, a gap 7 is left between the dust-absorbing cotton 4 and any side surface of the housing 1, the gap 7 is communicated with the accommodating space 5, small particles of dust are mainly adsorbed on the dust-absorbing cotton 4, larger particles can roll on the dust-absorbing cotton 4, and finally fall into the accommodating space 5 through the gap 7, the filter layer net 2 is adhered with a plurality of wiping strips 8 which are transversely arranged, and the wiping strips 8 and the blackboard generate static electricity through friction to absorb dust, and the use process is as follows: the blackboard eraser is characterized in that one side of the blackboard eraser with an erasing strip 8 is attached to a blackboard, chalk handwriting on the blackboard is erased, when the chalk handwriting is erased through the erasing strip 8, the chalk dust is electrified through friction, a magnetic field is generated through a strong magnetic strip 3 arranged between a filter layer net 2 and dust absorption cotton 4, the electrified chalk dust is acted in the magnetic field, the chalk dust is quickly collected on the dust absorption cotton 4 through the filter layer net 2, small-particle dust is mainly adsorbed on the dust absorption cotton 4, larger particles can roll on the dust absorption cotton 4 and finally fall into a containing space 5 through a gap 7 to be collected, when the dust absorption cotton 4 needs to be replaced, the dust absorption cotton 4 can be taken out after the filter layer net 2 and the strong magnetic strip 3 are sequentially taken out, the dust absorption cotton 4 can also be pulled out through a dust outlet 6, the dust absorption cotton 4 is placed into the chalk handwriting through the dust outlet 6 again, when enough dust is stored in the containing space 5, dumping and collecting can be carried out through the dust outlet 6, the blackboard eraser is simple and practical, environment-friendly and pollution-free, and no chalk dust flies; the blackboard is cleaned and quickly erased; not only can collect chalk dust, but also can be intensively poured and treated; the dust absorption cotton is convenient to replace and simple to use; the structure is simple, and the practicability is strong; the cost is low, and the mass production can be realized; the filter layer net, the dust absorption cotton and the like can be replaced, the recycling is realized, the cost is reduced, and the resources are saved.
As an improved embodiment, as shown in fig. 1 or 2, the erasing strips 8 are arranged at equal intervals, two ends of each erasing strip 8 extend and are respectively adhered to the left side surface and the right side surface of the casing 1, and two ends of each erasing strip 8 are adhered to the left side surface and the right side surface of the casing 1, so that when the blackboard eraser is in contact friction with a blackboard, the edge of the casing 1 does not generate hard friction with the blackboard to wear the blackboard, the edge of the casing 1 is wrapped by the erasing strips 8, thereby not only avoiding the damage of the blackboard, but also avoiding the harsh noise generated by the hard friction, and further improving the maximum efficiency of the blackboard eraser.
As an improved embodiment, as shown in fig. 1-4, a plurality of baffles 9 are transversely arranged in the accommodating space 5, the baffles 9 are perpendicular to the bottom of the housing 1 and divide the accommodating space 5 into a plurality of dust storage grooves 10, the dust storage grooves 10 are communicated with the dust outlet 6, and by arranging the plurality of baffles 9, the dust collection cotton 4 is stably installed, is not easy to collapse at a local position, can receive more chalk dust, and meanwhile, the plurality of dust storage grooves 10 can store the chalk dust in batches, so that the phenomenon that the blackboard eraser cannot be normally used due to the fact that the local dust is agglomerated is avoided.
As an improved embodiment, the dust outlet 6 is formed in the bottom of the right side face of the shell 1, a gap 7 is reserved between the dust collection cotton 4 and the right side face of the shell 1, the structure is simple, the practicability is high, and the gap 7 is close to the dust outlet 6, so that chalk dust can be poured quickly.
As an improved embodiment, as shown in fig. 4, a containing groove 16 is provided on the lower surface of the filter layer net 2, the containing groove 16 is the same as the powerful magnetic stripe 3 in size and dimension, the powerful magnetic stripe 3 can be embedded in the containing groove 16, so that a larger space in the casing 1 can be mainly used for storing chalk dust, the utilization rate of the casing 1 is improved, meanwhile, the powerful magnetic stripe 3 can be embedded in the containing groove 16, the distance between the powerful magnetic stripe and the blackboard is also closer, and the generated magnetic field force has stronger dust adsorption guiding effect.
As an improved embodiment, as shown in fig. 4, the filter layer net 2 includes a first layer honeycomb net 11 and a second layer honeycomb net 12, a plurality of carbon element wires 13 are connected between the first layer honeycomb net 11 and the second layer honeycomb net 12, and the three-dimensional structure makes the sucked chalk dust not easily leak from the filter layer net 2, and the carbon element wires 13 have the characteristics of high strength, low cost and long service life, and the carbon element wires 13 in the utility model can select the connecting wires made of other materials.
As a modified example, as shown in fig. 1 and 5, the wiping strip 8 comprises a silk strip 17, a flocking core 14 is arranged in the silk strip 17, the silk strip 17 has less friction damage to the blackboard and is electrified by friction, and the flocking core 14 can support the silk strip 17, so that the silk strip has a three-dimensional structure and has the function of protecting the filter screen 2 and the shell 1.
As an improved embodiment, as shown in fig. 1 and 2, a partition plate 15 is respectively arranged on the left and right side surfaces of the housing 1 for inserting, and through the arrangement of the partition plate 15, the two ends of each wiping strip 8 are fixed, so that the separation of the wiping strips from the blackboard eraser is avoided and the normal use of the blackboard eraser is not affected; the connecting part of the two adjacent side surfaces on the shell 1 is provided with the arc-shaped chamfer, so that the attractiveness is improved, and the comfort level of holding is also improved.
As an improved embodiment, a drawer is arranged in the dust outlet 6 in a telescopic mode and connected with the dust collection cotton 4, and the drawer is arranged, so that chalk dust can be poured and the dust collection cotton 4 can be drawn out more simply and conveniently, the structure is simple, and the practicability is high.
As an improved embodiment, the dust absorption cotton 4 is polyester dust absorption cotton, has good elasticity and durability, and particularly has electrostatic action to facilitate the absorption of chalk dust.
Finally, it should be noted that the present invention is not limited to the above embodiments, and many variations are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the invention should be considered as within the scope of the invention.
Claims (10)
1. The environment-friendly dust-free blackboard eraser is characterized in that: including upper end open-ended casing (1), top-down is in filter screen (2), powerful magnetic stripe (3), dust absorption cotton (4) have set gradually in casing (1), dust absorption cotton (4) set up and are formed with accommodation space (5) with casing (1) bottom interval, dust outlet (6) have been seted up to the bottom of any side of casing (1), dust outlet (6) and accommodation space (5) intercommunication set up, clearance (7) are left with casing (1) arbitrary side in dust absorption cotton (4), clearance (7) and accommodation space (5) intercommunication, the adhesion has a plurality of transverse arrangement's wiping strip (8) on filter screen (2).
2. The environment-friendly dust-free blackboard eraser as claimed in claim 1, wherein: the wiping strips (8) are arranged at equal intervals, and two ends of each wiping strip (8) extend and are respectively adhered to the left side surface and the right side surface of the shell (1).
3. The environment-friendly dust-free blackboard eraser as claimed in claim 1 or 2, wherein: transversely be provided with a plurality of baffle (9) in accommodation space (5), baffle (9) perpendicular and casing (1) bottom just divide into a plurality of ash storage tank (10) with accommodation space (5), ash storage tank (10) communicate each other with dust outlet (6).
4. The environment-friendly dust-free blackboard eraser according to claim 3, wherein: the dust outlet (6) is arranged at the bottom of the right side surface of the shell (1), and a gap (7) is reserved between the dust absorption cotton (4) and the right side surface of the shell (1).
5. The environment-friendly dust-free blackboard eraser as claimed in claim 1, wherein: the lower surface of the filter layer net (2) is provided with a containing groove (16), and the containing groove (16) is the same as the powerful magnetic stripe (3) in size and dimension.
6. The environment-friendly dust-free blackboard eraser as claimed in claim 1 or 5, wherein: the filter layer net (2) comprises a first layer of honeycomb net (11) and a second layer of honeycomb net (12), and a plurality of carbon wires (13) are connected between the first layer of honeycomb net (11) and the second layer of honeycomb net (12).
7. The environment-friendly dust-free blackboard eraser as claimed in claim 1, wherein: the wiping strip (8) comprises a silk strip (17), and a flocking core (14) is arranged in the silk strip (17).
8. The environment-friendly dust-free blackboard eraser as claimed in claim 1, wherein: a partition plate (15) is respectively arranged on the left side surface and the right side surface of the shell (1) and can be inserted by a bolt; and an arc-shaped chamfer is arranged at the joint of two adjacent side surfaces on the shell (1).
9. The environment-friendly dust-free blackboard eraser as claimed in claim 1, wherein: a drawer is arranged in the dust outlet (6) in a drawable manner and is connected with the dust absorption cotton (4).
10. The environment-friendly dust-free blackboard eraser as claimed in claim 1 or 8, wherein: the dust absorption cotton (4) is polyester dust absorption cotton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822059443.4U CN212267091U (en) | 2018-12-10 | 2018-12-10 | Environment-friendly dust-free blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822059443.4U CN212267091U (en) | 2018-12-10 | 2018-12-10 | Environment-friendly dust-free blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212267091U true CN212267091U (en) | 2021-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822059443.4U Expired - Fee Related CN212267091U (en) | 2018-12-10 | 2018-12-10 | Environment-friendly dust-free blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212267091U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109532292A (en) * | 2018-12-10 | 2019-03-29 | 梅三女 | A kind of environment-friendly dustless blackboard eraser |
-
2018
- 2018-12-10 CN CN201822059443.4U patent/CN212267091U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109532292A (en) * | 2018-12-10 | 2019-03-29 | 梅三女 | A kind of environment-friendly dustless blackboard eraser |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210101 |