CN212979689U - Dust-collecting blackboard eraser - Google Patents
Dust-collecting blackboard eraser Download PDFInfo
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- CN212979689U CN212979689U CN202021922602.XU CN202021922602U CN212979689U CN 212979689 U CN212979689 U CN 212979689U CN 202021922602 U CN202021922602 U CN 202021922602U CN 212979689 U CN212979689 U CN 212979689U
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- roller
- eraser
- brush
- roller shaft
- blackboard
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Abstract
The utility model discloses a dust collecting blackboard eraser. The blackboard eraser body consists of a base shell and a blackboard eraser arranged on the inner side of the base shell, wherein a first roller brush and a second roller brush are respectively arranged at the left end and the right end of the base shell, the first roller brush comprises a first roller shaft and a brush arranged on the outer circumferential surface of the first roller brush, and the first roller brush is sleeved on the first roller shaft; the second roller brush comprises a second roller shaft and a brush arranged on the outer circumferential surface of the second roller brush, and the second roller brush is sleeved on the second roller shaft; the first roller shaft is movably connected with the base shell, and the second roller shaft is movably connected with the base shell; the eraser comprises a first eraser roller, a first eraser roller shaft, a second eraser roller shaft and flannelette. The device has the advantages that the rotating speed of the rollers is different after the rollers are driven between the large roller and the small roller, the lint for wiping the blackboard is adjusted along with the wiping speed, the contact surface of the lint for wiping the blackboard and the blackboard is relatively clean, and the raised dust is reduced.
Description
Technical Field
The utility model belongs to the technical field of the teaching aid and specifically relates to a collection dirt blackboard eraser.
Background
The traditional blackboard eraser in the teaching equipment has low efficiency and flying dust, and chalk dust is sucked into the lungs of teachers and students every time the blackboard is erased, so that the body is greatly damaged.
Disclosure of Invention
An object of the utility model is to provide a collection dirt blackboard eraser can effectively reduce owing to clean the chalk dust that raises.
In order to achieve the purpose, the dust-collecting blackboard eraser comprises a blackboard eraser body, wherein the blackboard eraser body consists of a base shell and a blackboard eraser arranged on the inner side of the base shell, the left end and the right end of the base shell are respectively provided with a first roller brush and a second roller brush, the first roller brush comprises a first roller shaft and a brush arranged on the outer circumferential surface of the first roller brush, and the first roller brush is sleeved on the first roller shaft; the second roller brush comprises a second roller shaft and a brush arranged on the outer circumferential surface of the second roller brush, and the second roller brush is sleeved on the second roller shaft; the first roller shaft is movably connected with the base shell, and the second roller shaft is movably connected with the base shell; the eraser comprises a first eraser roller, a first eraser roller shaft, a second eraser roller shaft and flannelette, wherein the first eraser roller is sleeved on the first eraser roller shaft, the second eraser roller is sleeved on the second eraser roller shaft, and the flannelette is sleeved outside the first eraser roller and the second eraser roller; the first eraser roller shaft is connected with the second eraser roller shaft through a first belt, the first eraser roller is connected with the first roller shaft through a second belt, and the second roller shaft is connected with the second eraser roller through a third belt; the first eraser roller shaft is movably connected with the base shell; the second eraser roller shaft is movably connected with the base shell.
A torsion spring is arranged between the first roller brush and the first roller shaft and is sleeved on the first roller shaft; a torsional spring is arranged between the first eraser roller and the first eraser roller shaft and is sleeved on the first eraser roller shaft; a torsional spring is arranged between the second eraser roller shaft and the second eraser roller and sleeved on the second eraser roller shaft; and a torsional spring is arranged between the second roller shaft and the second roller brush and sleeved on the second roller shaft.
The blackboard eraser is characterized in that the top of the blackboard eraser body is connected with a dust removal part, the dust removal part comprises a dust removal rolling shaft and a dust removal brush, the dust removal brush is sleeved on the dust removal rolling shaft, the dust removal rolling shaft is connected with the first blackboard eraser rolling shaft through a fourth belt, and the dust removal rolling shaft is movably connected with the dust removal part.
The dust removal roller bearing in the dust removal part is provided with a plurality of, and correspondingly sets up a plurality of dust removal brush, the corresponding a plurality of dust removal brush that sets up is tangent setting in proper order side by side, connect through the fifth belt between the a plurality of dust removal roller bearing that sets gradually side by side.
The blackboard eraser comprises a blackboard eraser body, a dust removal component and a dust collection box, wherein the blackboard eraser body is provided with a dust collection box, the dust collection box is detachably arranged on one side of the blackboard eraser body and one side of the dust removal component, and the blackboard eraser body, the dust removal component and the dust collection box are communicated with each other.
A first friction layer is arranged between the flannelette and the first eraser roller; a second friction layer is arranged between the flannelette and the second eraser roller, and the first friction layer is sleeved on the first eraser roller; the second friction layer is sleeved on the second eraser roller.
The inner wall of the first friction layer is tightly connected with the first eraser roller, and the outer wall of the first friction layer is movably connected with the flannelette; the inner wall of the second friction layer is tightly connected with the second eraser roller, and the outer wall of the second friction layer is movably connected with the flannelette.
And a handle is arranged at the top of the dust removal component.
The dust removing brush is a nylon roller brush, and the length of the brush hair is 0.5-1 cm.
An album dirt blackboard eraser, its beneficial effect lies in: the device achieves the purpose that the lint for wiping the blackboard is adjusted along with the wiping speed through the difference of the rotating speeds of the rollers after the rollers are driven between the large roller and the small roller, so that the contact surface of the lint for wiping the blackboard and the blackboard is relatively clean, the dust removing brush in the dust removing part is a nylon roller brush, the lint for wiping chalk dust is physically brushed, and the dust collecting blackboard eraser is erected when the blackboard is wiped, so that chalk dust which is brushed up is gathered in the dust collecting box due to gravity, the blackboard wiping efficiency is high, and the lifted dust is reduced.
Drawings
FIG. 1 is a cross-sectional view of an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an embodiment of the present invention;
FIG. 3 is a schematic structural view of a blackboard eraser body according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an embodiment of the present invention;
in the figure: 1-blackboard eraser body, 2-second friction layer, 2-1-first friction layer, 3-second blackboard eraser roller, 3-1-first blackboard eraser roller, 4-second blackboard eraser roller shaft, 5-first belt, 6-second roller brush, 7-second roller shaft, 8-third belt, 9-first roller brush, 10-first roller shaft, 11-second belt, 12-first blackboard eraser roller shaft, 13-blackboard eraser, 14-fourth belt, 15-dust removing brush, 16-dust removing roller, 17-dust removing component, 18-dust collecting box and 19-handle.
Detailed Description
Example 1
As shown in fig. 1-5, the blackboard eraser with dust collection of the present invention comprises a blackboard eraser body 1, wherein the blackboard eraser body 1 is composed of a base shell and a blackboard eraser 13 arranged inside the base shell, the left and right ends of the base shell are respectively provided with a first roller brush 9 and a second roller brush 6, the first roller brush 9 comprises a first roller shaft 10 and a brush arranged on the outer circumferential surface of the first roller brush 9, and the first roller brush 9 is sleeved on the first roller shaft 10; the second roller brush 6 comprises a second roller shaft 7 and a brush arranged on the outer circumferential surface of the second roller brush 6, and the second roller brush 6 is sleeved on the second roller shaft 7; the first roller shaft 10 is movably connected with the base shell, and the second roller shaft 7 is movably connected with the base shell; the eraser 13 comprises a first eraser roller 3-1, a first eraser roller shaft 12, a second eraser roller 3, a second eraser roller shaft 4 and flannelette, wherein the first eraser roller 3-1 is sleeved on the first eraser roller shaft 12, the second eraser roller 3 is sleeved on the second eraser roller shaft 4, and the flannelette is sleeved outside the first eraser roller 3-1 and the second eraser roller 3; the first eraser roller shaft 12 is connected with the second eraser roller shaft 4 through a first belt 5, the first eraser roller 3-1 is connected with the first roller shaft 10 through a second belt 11, and the second roller shaft 7 is connected with the second eraser roller 3 through a third belt 8; the first eraser roller shaft 12 is movably connected with the base shell; the second eraser roller shaft 4 is movably connected with the base shell.
A torsion spring is arranged between the first roller brush 9 and the first roller shaft 10 and is sleeved on the first roller shaft 10; a torsion spring is arranged between the first eraser roller 3-1 and the first eraser roller shaft 12 and is sleeved on the first eraser roller shaft 12; a torsional spring is arranged between the second eraser roller shaft 4 and the second eraser roller 3 and is sleeved on the second eraser roller shaft 4; and a torsion spring is arranged between the second roller shaft 7 and the second roller brush 6 and sleeved on the second roller shaft 7.
The blackboard eraser is characterized in that the top of the blackboard eraser body 1 is connected with a dust removal part 17, the dust removal part 17 comprises a dust removal roller 16 and a dust removal brush 15, the dust removal brush 15 is sleeved on the dust removal roller 16, the dust removal roller 16 is connected with the first blackboard eraser roller shaft 12 through a fourth belt 14, and the dust removal roller 16 is movably connected with the dust removal part 17.
The dust removal roller 16 in the dust removal part 17 is provided with a plurality of, and correspondingly sets up a plurality of dust removal brush 15, a plurality of dust removal brush 15 of corresponding setting is tangent setting in proper order side by side, connect through the fifth belt between the roller 16 of a plurality of dust removal that sets gradually side by side.
The blackboard eraser comprises a blackboard eraser body 1, a dust removal component 17 and a dust collection box 18, wherein the dust collection box 18 is arranged on one side of the blackboard eraser body 1 and one side of the dust removal component 17, the dust collection box 18 is detachably arranged on one side of the blackboard eraser body 1 and one side of the dust removal component 17, and the blackboard eraser body 1, the dust removal component 17 and the dust collection box 18 are communicated with each other.
A first friction layer 2-1 is arranged between the flannelette and the first eraser roller 3-1; a second friction layer 2 is arranged between the flannelette and the second eraser roller 3, and the first friction layer 2-1 is sleeved on the first eraser roller 3-1; the second friction layer 2 is sleeved on the second blackboard eraser roller 3.
The inner wall of the first friction layer 2-1 is tightly connected with a first eraser roller 3-1, and the outer wall of the first friction layer 2-1 is movably connected with flannelette; the inner wall of the second friction layer 2 is tightly connected with the second eraser roller 3, and the outer wall of the second friction layer 2 is movably connected with flannelette.
The top of the dust removing part 17 is provided with a handle 19.
The dust removing brush 15 is a nylon roller brush, and the length of the brush hair is 0.5-1 cm.
When the blackboard eraser is used, the rotating speed of the rollers is different after the first eraser roller 3-1 and the first roller shaft 10 are driven, so that the lint for erasing the blackboard is adjusted along with the erasing speed, the contact surface of the lint for erasing the blackboard and the blackboard is relatively clean, the dust removing brush 15 in the dust removing part 17 is a nylon roller brush, the lint for erasing chalk dust is physically brushed, the dust collecting blackboard eraser is erected when the blackboard is erased, one side of the blackboard eraser body 1, which is provided with the dust collecting box 18, faces downwards, so that the chalk ash which is brushed up by brushing is gathered in the dust collecting box 18 due to gravity, the blackboard erasing efficiency is high, the raised dust is reduced, and the dust collecting box 18 is convenient to clean after being detached.
Claims (9)
1. The utility model provides a collection dirt blackboard eraser, includes blackboard brush body (1), blackboard brush body (1) comprises basic shell and blackboard eraser (13) of setting in the basic shell, its characterized in that: a first roller brush (9) and a second roller brush (6) are respectively arranged at the left end and the right end of the base shell, the first roller brush (9) comprises a first roller shaft (10) and a brush arranged on the outer circumferential surface of the first roller brush (9), and the first roller brush (9) is sleeved on the first roller shaft (10); the second roller brush (6) comprises a second roller shaft (7) and a brush arranged on the outer circumferential surface of the second roller brush (6), and the second roller brush (6) is sleeved on the second roller shaft (7); the first roller shaft (10) is movably connected with the base shell, and the second roller shaft (7) is movably connected with the base shell; the eraser (13) comprises a first eraser roller (3-1), a first eraser roller shaft (12), a second eraser roller (3), a second eraser roller shaft (4) and flannelette, the first eraser roller (3-1) is sleeved on the first eraser roller shaft (12), the second eraser roller (3) is sleeved on the second eraser roller shaft (4), and the flannelette is sleeved outside the first eraser roller (3-1) and the second eraser roller (3); the first eraser roller shaft (12) is connected with the second eraser roller shaft (4) through a first belt (5), the first eraser roller (3-1) is connected with the first roller shaft (10) through a second belt (11), and the second roller shaft (7) is connected with the second eraser roller (3) through a third belt (8); the first eraser roller shaft (12) is movably connected with the base shell; the second blackboard eraser roller shaft (4) is movably connected with the base shell.
2. The dust collecting blackboard eraser according to claim 1, wherein: a torsion spring is arranged between the first roller brush (9) and the first roller shaft (10), and the torsion spring is sleeved on the first roller shaft (10); a torsion spring is arranged between the first eraser roller (3-1) and the first eraser roller shaft (12), and the torsion spring is sleeved on the first eraser roller shaft (12); a torsion spring is arranged between the second eraser roller shaft (4) and the second eraser roller (3), and the torsion spring is sleeved on the second eraser roller shaft (4); and a torsion spring is arranged between the second roller shaft (7) and the second roller brush (6), and the torsion spring is sleeved on the second roller shaft (7).
3. The dust collecting blackboard eraser according to claim 2, wherein: the blackboard eraser is characterized in that a dust removing component (17) is connected to the top of the blackboard eraser body (1), the dust removing component (17) comprises a dust removing rolling shaft (16) and a dust removing brush (15), the dust removing brush (15) is sleeved on the dust removing rolling shaft (16), the dust removing rolling shaft (16) is connected with a first blackboard eraser rolling shaft (12) through a fourth belt (14), and the dust removing rolling shaft (16) is movably connected with the dust removing component (17).
4. A dust collecting blackboard eraser according to claim 3, wherein: dust removal roller bearing (16) in dust removal part (17) are provided with a plurality of, and correspondingly set up a plurality of dust removal brush (15), a plurality of dust removal brush (15) of corresponding setting are tangent setting in proper order side by side, connect through the fifth belt between a plurality of dust removal roller bearing (16) that set gradually side by side.
5. The dust collecting blackboard eraser according to claim 4, wherein: a dust collection box (18) is arranged on one side of the blackboard brush body (1) and one side of the dust removal part (17), the dust collection box (18) is detachably arranged on one side of the blackboard brush body (1) and one side of the dust removal part (17), and the blackboard brush body (1), the dust removal part (17) and the dust collection box (18) are communicated with each other.
6. The dust collecting blackboard eraser according to claim 5, wherein: a first friction layer (2-1) is arranged between the flannelette and the first eraser roller (3-1); a second friction layer (2) is arranged between the flannelette and the second eraser roller (3), and the first friction layer (2-1) is sleeved on the first eraser roller (3-1); the second friction layer (2) is sleeved on the second eraser roller (3).
7. The dust collecting blackboard eraser according to claim 6, wherein: the inner wall of the first friction layer (2-1) is tightly connected with the first eraser roller (3-1), and the outer wall of the first friction layer (2-1) is movably connected with flannelette; the inner wall of the second friction layer (2) is tightly connected with the second eraser roller (3), and the outer wall of the second friction layer (2) is movably connected with the flannelette.
8. The dust collecting blackboard eraser according to claim 5, wherein: and a handle (19) is arranged at the top of the dust removing component (17).
9. The dust collecting blackboard eraser according to claim 5, wherein: the dust removing brush (15) is a nylon roller brush, and the length of the brush hair is 0.5-1 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021922602.XU CN212979689U (en) | 2020-09-06 | 2020-09-06 | Dust-collecting blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021922602.XU CN212979689U (en) | 2020-09-06 | 2020-09-06 | Dust-collecting blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212979689U true CN212979689U (en) | 2021-04-16 |
Family
ID=75417631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021922602.XU Active CN212979689U (en) | 2020-09-06 | 2020-09-06 | Dust-collecting blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212979689U (en) |
-
2020
- 2020-09-06 CN CN202021922602.XU patent/CN212979689U/en active Active
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