CN110466275B - Dust-absorbing blackboard eraser - Google Patents
Dust-absorbing blackboard eraser Download PDFInfo
- Publication number
- CN110466275B CN110466275B CN201910729845.7A CN201910729845A CN110466275B CN 110466275 B CN110466275 B CN 110466275B CN 201910729845 A CN201910729845 A CN 201910729845A CN 110466275 B CN110466275 B CN 110466275B
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- shell
- dust
- baffle
- impeller
- brush
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L21/00—Blackboard or slate cleaning devices
- B43L21/02—Blackboard or slate cleaning devices with means for absorbing the chalk dust
Abstract
The invention relates to the technical field of stationery, and particularly provides a dust collection blackboard brush which comprises brush cotton and a second shell, wherein the brush cotton is clamped with the second shell, the second shell is connected with a first shell, and the second shell is communicated with the first shell and is communicated with the outside; the impeller structure comprises a first shell, a second shell and an impeller mechanism, wherein the first shell is provided with the roller structure, the second shell is provided with the impeller mechanism, the first shell is internally provided with a transmission mechanism used for converting rolling of the roller structure into rotation of the impeller mechanism, and the transmission mechanism is connected with the impeller mechanism and the roller structure. The chalk mark erasing device is convenient to use, can roll in multiple directions to erase chalk marks, improves erasing efficiency and cleanness, can prevent dust from flying, and reduces the suction of a user.
Description
Technical Field
The invention relates to the technical field of stationery, and particularly provides a dust absorption blackboard brush.
Background
A blackboard brush is a tool often used in daily life. At present, teachers often need to write and draw on blackboards for explanation in class. When a teacher uses the blackboard brush to wipe chalk marks, dust can be blown inevitably, so that the teacher or students sitting close to the blackboard can inhale chalk dust, and the discomfort of the nose, the pharynx and the throat can be caused, and the body health of the teacher or the students can be influenced. Although some existing blackboard brushes can absorb dust, the moving direction of the existing blackboard brushes is single, the existing blackboard brushes can only move towards a straight line direction when being used for wiping a blackboard, the wiping efficiency is low, the structure is complex, and the purchase cost is increased.
Disclosure of Invention
The invention aims to overcome the defect of low erasing efficiency of the existing blackboard brush, and provides a dust-absorbing blackboard brush which is convenient to use, can roll in multiple directions to erase chalk marks, improves erasing efficiency and cleanness, can prevent dust from flying, and reduces the suction of a user.
In order to solve the technical problems, the invention adopts the technical scheme that:
the dust-absorbing blackboard brush comprises brush cotton and a second shell, wherein the brush cotton is clamped with the second shell, the second shell is connected with a first shell, and the second shell is communicated with the first shell and the outside; the impeller structure comprises a first shell, a second shell and an impeller mechanism, wherein the first shell is provided with the roller structure, the second shell is provided with the impeller mechanism, the first shell is internally provided with a transmission mechanism used for converting rolling of the roller structure into rotation of the impeller mechanism, and the transmission mechanism is connected with the impeller mechanism and the roller structure.
The invention relates to a dust-absorbing blackboard brush, wherein a brush cotton is used for erasing chalk marks on a blackboard; the arrangement of the roller structure can facilitate the dust absorption blackboard brush to carry out multidirectional rolling erasing on the blackboard; the arrangement of the transmission mechanism and the impeller structure ensures that the dust-absorbing blackboard brush can convert the rolling of the roller structure into the rotation of the impeller mechanism through the transmission of the transmission mechanism, the pressure above the impeller mechanism is smaller than the pressure below the impeller mechanism through the rotation of the impeller mechanism, and the erased dust enters the upper part of the impeller mechanism under the action of pressure difference and is concentrated at the top of the first shell; the first shell is arranged to prevent dust from flying.
In order to enable the rolling of the roller structure to be converted into the rotation of the impeller mechanism through a transmission mechanism, the transmission mechanism comprises a rotating shaft, a clockwork spring structure and a plurality of transmission lines; one end of the transmission line is connected with the roller structure, and the other end of the transmission line is connected with the clockwork spring structure; the inner end of the clockwork spring structure is connected with the rotating shaft; one end of the rotating shaft is connected with the top of the first shell through a bearing, and the other end of the rotating shaft is connected with the impeller mechanism; the roller structure is connected with the bottom of the first shell.
In order to enable the dust collection blackboard brush to collect dust, a dust storage bin is arranged in the first shell and is communicated with the second shell.
In order to make the dust storage bin effectively store dust, the one end that is close to its top in the first casing is connected with first baffle, first baffle constitutes with first shells inner wall the dust storage bin.
In order to enable the erased dust to enter the dust storage bin through the second shell, the first baffle is connected with the top of the second shell, and the first baffle is provided with a second opening structure so that the dust storage bin is communicated with the second shell.
In order to enable the second shell to be communicated with the outside, dust can enter the second shell, and the brushing cotton is annular and is connected with the bottom of the second shell.
In order to reduce the leakage of dust from the dust storage bin, a second baffle plate for preventing the leakage of the dust is arranged between the first shell and the second shell; holes for the transmission mechanism to pass through are formed in the first baffle and the second baffle; and a plurality of through holes are formed in the second shell positioned between the first baffle and the second baffle. The through holes are arranged to enable dust falling between the first baffle and the second baffle to reenter the dust storage bin.
In order to enable the dust absorption blackboard brush to move in multiple directions, the roller structure is a universal wheel.
In order to pour out dust in the dust storage bin, a first opening structure for pouring out the dust is arranged on the first shell, and a cover body matched with the first opening structure is arranged on the first opening structure.
In order to facilitate a user to hold the dust absorption blackboard eraser, a handle is arranged on the first shell.
Compared with the prior art, the invention has the beneficial effects that:
(1) the arrangement of the roller structure, the transmission mechanism and the impeller mechanism enables the dust-collecting blackboard brush to convert the rolling of the roller structure into the rotation of the impeller mechanism through the transmission of the transmission mechanism, so that the pressure difference is generated between the upper part and the lower part of the impeller mechanism through the rotation of the impeller mechanism, and the erased dust enters the dust storage bin under the action of the pressure difference to prevent the dust from flying.
(2) The second baffle plate is arranged, so that a small amount of dust leaked from the dust storage bin can be prevented from falling onto the roller structure, and marks are left on the blackboard through rolling of the roller structure; the through holes are formed, so that a small amount of leaked dust can return to the dust storage bin again through pressure difference generated by rotation of the impeller mechanism, and the dust is prevented from being accumulated between the first baffle and the second baffle.
(3) The arrangement of the universal wheel enables the dust absorption blackboard brush to effectively move in multiple directions, and the erasing efficiency is improved.
Drawings
FIG. 1 is a schematic view of a dust-absorbing blackboard eraser.
Fig. 2 is a front view of fig. 1.
Fig. 3 is a top view of fig. 2.
Fig. 4 is a bottom view of fig. 2.
The graphic symbols are illustrated as follows:
1-cotton brushing, 2-first shell, 21-first opening structure, 3-second shell, 31-through hole, 4-dust storage bin, 5-transmission mechanism, 51-transmission line, 52-rotating shaft, 53-clockwork spring structure, 6-handle, 7-impeller mechanism, 8-first baffle, 81-second opening structure, 9-second baffle and 10-roller structure.
Detailed Description
The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.
Example 1
As shown in fig. 1 to 4, a first embodiment of a dust-absorbing blackboard brush according to the present invention includes a brush cotton 1 and a second housing 3, the brush cotton 1 is clamped with the second housing 3, the second housing 3 is connected with a first housing 2, and the second housing 3 is communicated with the first housing 2 and with the outside; the first shell 2 is provided with a roller structure 10, the second shell 3 is internally provided with an impeller mechanism 7, the first shell 2 is internally provided with a transmission mechanism 5 which is used for converting the rolling of the roller structure 10 into the rotation of the impeller mechanism 7, and the transmission mechanism 5 is connected with the impeller mechanism 7 and the roller structure 10.
The brush cotton 1 is used for erasing chalk marks on the blackboard; the arrangement of the roller structure 10 can facilitate the dust absorption blackboard eraser to carry out multidirectional rolling erasing on the blackboard; the transmission mechanism 5 and the impeller structure 7 are arranged, so that the dust collection blackboard brush can convert the rolling of the roller structure 10 into the rotation of the impeller structure 7 through the transmission of the transmission mechanism 5, the pressure above the impeller structure 7 is smaller than the pressure below the impeller structure 7 through the rotation of the impeller structure 7, and the erased dust enters the impeller structure 7 under the action of pressure difference and is concentrated on the top of the first shell 2; the first housing 2 is provided to prevent dust from flying.
In addition, the transmission mechanism 5 comprises a rotating shaft 52, a clockwork spring structure 53 and a plurality of transmission lines 51; one end of the transmission line 51 is connected with the roller structure 10, and the other end is connected with the spring structure 53; the inner end of the clockwork spring structure 53 is connected with the rotating shaft 52; one end of the rotating shaft 52 is connected with the top of the first shell 2 through a bearing, and the other end is connected with the impeller mechanism 7; the roller structure 10 is connected to the bottom of the first housing 2. The arrangement of the transmission line 51, the rotating shaft 52 and the spring structure 53 enables the rolling of the roller structure 10 to be converted into the rotation of the impeller mechanism 7 through the transmission mechanism 5. The roller structure 10 of the present embodiment is a universal wheel. The arrangement of the universal wheel enables the dust absorption blackboard brush to move in multiple directions.
As shown in fig. 1, the spring structure 53 of the present embodiment includes a housing and a spring, the spring is connected in the housing, and a gap is formed in the middle of the housing for facilitating the insertion of the rotating shaft 52; the shaft 52 is provided with a notch for engaging with the inner end of the spring. The outer wall of the casing is provided with a plurality of small holes for enabling the transmission line 51 to pass through and connecting the casing and the transmission line 51 in a mode of binding and knotting the transmission line 51. It should be noted that this connection is not exclusive, and the housing and the transmission line 51 may be connected by an adhesive material. Since the transmission line 51 is bent inside the first housing 2, the transmission line 51 is made of a soft material. The transmission line 51 is connected with the universal wheel through the transmission line 51 in a binding and knotting mode. When a user erases chalk marks, the universal wheel can roll on the blackboard, the transmission line 51 is driven to wind on the universal wheel in a circle while rolling, the clockwork spring structure 53 is enabled to rotate, the rotating shaft 52 is driven to rotate, the rotating shaft 52 can drive the impeller mechanism to rotate, the impeller is driven to rotate, pressure difference is generated in the second shell 3, and dust can enter the dust storage bin 4. In this embodiment, four universal wheels are provided, as shown in fig. 4.
In addition, a dust storage bin 4 is arranged in the first shell 2, and the dust storage bin 4 is communicated with the second shell 3. The dust storage bin 4 enables the dust collection blackboard brush to collect dust.
Wherein, the one end that is close to its top in first casing 2 is connected with first baffle 8, and first baffle 8 constitutes dust storage bin 4 with first casing 2 inner wall. The arrangement of the first baffle 8 enables the dust storage bin 4 to store dust effectively.
Wherein, first baffle 8 is connected with the top of second casing 3, is equipped with second open structure 81 on the first baffle 8, makes dust storage bin 4 communicate with each other with second casing 3. The provision of the second opening structure 81 enables the dust being wiped off to pass through the second housing 3 into the dust bin 4.
As shown in fig. 1, the second opening structure 81 is located at the middle of the first baffle plate 8 in this embodiment, so that the rotating shaft 52 can pass through the second opening structure 81, and the impeller mechanism 7 connected to the rotating shaft 52 can extend into the second housing 3. The first baffle 8 is disposed in parallel with the top of the first housing 2. It should be noted that the parallel arrangement is not exclusive, and the first baffle 8 can also be arranged obliquely, increasing the volume of the dust storage bin 4.
The brush cotton 1 is annular and is connected to the bottom of the second casing 3. The annular arrangement of the brush cotton 1 enables the second shell to be communicated with the outside, and dust can enter the second shell 3.
As shown in fig. 1, 2 and 4, the ring-shaped brush cotton 1 in the present embodiment can facilitate the dust to be wiped to enter the second housing 3 and then enter the dust storage bin 4. The distance that the brush cotton 1 stretches out first casing 2 is greater than the distance that the universal wheel stretches out first casing 2, guarantees that the brush cotton 1 can be prior to the universal wheel and blackboard contact.
Wherein, a second baffle 9 for preventing dust leakage is arranged between the first shell 2 and the second shell 3; holes for the transmission mechanism 5 to pass through are arranged on the first baffle plate 8 and the second baffle plate 9; a plurality of through holes 31 are arranged on the second shell 3 between the first baffle plate 8 and the second baffle plate 9. The arrangement of the second shutter 9 and the through hole 31 can reduce the leakage of dust from the dust storage bin 4.
As shown in fig. 1, the first baffle plate 8 and the second baffle plate 9 of the present embodiment are respectively provided with four holes for the transmission line 51 to pass through, i.e. the size of the holes is slightly larger than the cross-sectional area of the transmission line 51, which is also to prevent a large amount of dust from leaking out of the dust storage bin 4 through the holes. The arrangement of the through holes 31 can lead a small amount of dust leaked from the dust storage bin 4 and falling between the first baffle plate 8 and the second baffle plate 9 to return to the dust storage bin 4 again through the pressure difference generated by the rotation of the impeller mechanism 7, so as to prevent the dust from accumulating between the first baffle plate 8 and the second baffle plate 9. In this embodiment, four through holes 31 are provided, and the four through holes 31 are respectively close to the positions of the holes provided on the first baffle plate 8 and the second baffle plate 9.
In addition, the first case 2 is provided with a first opening structure 21 for discharging dust, and the first opening structure 21 is provided with a cover body matched with the first opening structure. The arrangement of the first opening structure 21 can facilitate the dust in the dust storage bin 4 to be poured out, and the arrangement of the cover body can prevent the dust from leaking. As shown in fig. 1 and 3, the first opening structure 21 is located at the top of the first housing 2 in the present embodiment, and it should be noted that the first opening structure 21 can also be located at the side of the first housing 2, and keeps the first opening structure 21 in communication with the dust storage bin 4. In this embodiment, the first opening structure 21 and the cover body are connected by a screw thread, it should be noted that the screw thread is not the only connection manner, and the first opening structure 21 and the cover body can also be connected by a snap-fit manner.
Example 2
This embodiment is similar to embodiment 1, except that the handle 6 is provided on the first housing 2 in this embodiment. The handle 6 is arranged to facilitate the user to hold the dust-absorbing blackboard eraser. As shown in fig. 1 to 3, the handle 6 is located at the top of the first housing 2 in this embodiment.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (6)
1. A dust absorption blackboard brush comprises brush cotton (1) and a second shell (3), wherein the brush cotton (1) is clamped with the second shell (3), the dust absorption blackboard brush is characterized in that the second shell (3) is connected with a first shell (2), and the second shell (3) is communicated with the first shell (2) and is communicated with the outside; the impeller structure comprises a first shell (2), an impeller mechanism (7) and a second shell (3), wherein the first shell (2) is provided with the roller structure (10), the second shell (3) is internally provided with a transmission mechanism (5) for converting the rolling of the roller structure (10) into the rotation of the impeller mechanism (7), and the transmission mechanism (5) is connected with the impeller mechanism (7) and the roller structure (10); the transmission mechanism (5) comprises a rotating shaft (52), a clockwork spring structure (53) and a plurality of transmission lines (51); one end of the transmission line (51) is connected with the roller structure (10), and the other end of the transmission line is connected with the clockwork spring structure (53); the inner end of the clockwork spring structure (53) is connected with the rotating shaft (52); one end of the rotating shaft (52) is connected with the top of the first shell (2) through a bearing, and the other end of the rotating shaft is connected with the impeller mechanism (7); the roller structure (10) is connected with the bottom of the first shell (2); a dust storage bin (4) is arranged in the first shell (2), and the dust storage bin (4) is communicated with the second shell (3); a first baffle (8) is arranged at one end of the first shell (2) close to the top of the first shell, and the first baffle (8) is connected with the inner wall of the first shell (2) to form the dust storage bin (4); a second baffle (9) for preventing dust from leaking is arranged between the first shell (2) and the second shell (3); holes for the transmission mechanism (5) to pass through are formed in the first baffle plate (8) and the second baffle plate (9); and a plurality of through holes (31) are formed in the second shell (3) between the first baffle (8) and the second baffle (9).
2. A dust-absorbing blackboard brush according to claim 1, wherein the first baffle (8) is connected to the top of the second casing (3), and the first baffle (8) is provided with a second opening structure (81) to communicate the dust storage bin (4) with the second casing (3).
3. A dust-absorbing blackboard brush according to claim 1, wherein the brush cotton (1) is ring-shaped and connected with the bottom of the second casing (3).
4. A dust-absorbing blackboard brush according to claim 1, characterised in that the roller structure (10) is a universal wheel.
5. A blackboard eraser according to claim 1, wherein the first casing (2) is provided with a first opening structure (21) for discharging dust, and the first opening structure (21) is provided with a cover body matching with the first opening structure.
6. A dust-collecting blackboard according to any one of claims 1 to 5, characterised in that the first casing (2) is provided with a handle (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910729845.7A CN110466275B (en) | 2019-08-08 | 2019-08-08 | Dust-absorbing blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910729845.7A CN110466275B (en) | 2019-08-08 | 2019-08-08 | Dust-absorbing blackboard eraser |
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| Publication Number | Publication Date |
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| CN110466275A CN110466275A (en) | 2019-11-19 |
| CN110466275B true CN110466275B (en) | 2021-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910729845.7A Active CN110466275B (en) | 2019-08-08 | 2019-08-08 | Dust-absorbing blackboard eraser |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112577544A (en) * | 2020-11-25 | 2021-03-30 | 浙江科佳机械有限公司 | Automatic detection device is used in production of high-speed fastener |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10129196A (en) * | 1996-10-29 | 1998-05-19 | Kozo Konishi | Eraser for blackboard with powder remover |
| KR20120020785A (en) * | 2010-08-31 | 2012-03-08 | 이남연 | Fabrication method of friction system blackboard eraser |
| CN202593110U (en) * | 2012-05-21 | 2012-12-12 | 刘继琼 | Green dustless blackboard eraser |
| CN203611610U (en) * | 2013-10-22 | 2014-05-28 | 中国石油大学(华东) | Idler wheel type dust adsorption and collection transmission device |
| CN204483998U (en) * | 2015-03-06 | 2015-07-22 | 宋经辉 | A kind of manual dust collector |
| CN205890331U (en) * | 2016-06-02 | 2017-01-18 | 武卓星 | Can receive blackboard brush of chalk dust |
| CN106346993A (en) * | 2016-08-29 | 2017-01-25 | 江苏大学 | Mechanical dust-proof eraser |
| CN107599703A (en) * | 2017-11-02 | 2018-01-19 | 刘晓东 | A kind of mechanical dust absorption blackboard eraser |
| CN108909296A (en) * | 2018-06-26 | 2018-11-30 | 武汉理工大学 | Purely mechanical based on planetary gear train can turn to green energy conservation blackboard eraser |
-
2019
- 2019-08-08 CN CN201910729845.7A patent/CN110466275B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10129196A (en) * | 1996-10-29 | 1998-05-19 | Kozo Konishi | Eraser for blackboard with powder remover |
| KR20120020785A (en) * | 2010-08-31 | 2012-03-08 | 이남연 | Fabrication method of friction system blackboard eraser |
| CN202593110U (en) * | 2012-05-21 | 2012-12-12 | 刘继琼 | Green dustless blackboard eraser |
| CN203611610U (en) * | 2013-10-22 | 2014-05-28 | 中国石油大学(华东) | Idler wheel type dust adsorption and collection transmission device |
| CN204483998U (en) * | 2015-03-06 | 2015-07-22 | 宋经辉 | A kind of manual dust collector |
| CN205890331U (en) * | 2016-06-02 | 2017-01-18 | 武卓星 | Can receive blackboard brush of chalk dust |
| CN106346993A (en) * | 2016-08-29 | 2017-01-25 | 江苏大学 | Mechanical dust-proof eraser |
| CN107599703A (en) * | 2017-11-02 | 2018-01-19 | 刘晓东 | A kind of mechanical dust absorption blackboard eraser |
| CN108909296A (en) * | 2018-06-26 | 2018-11-30 | 武汉理工大学 | Purely mechanical based on planetary gear train can turn to green energy conservation blackboard eraser |
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| CN110466275A (en) | 2019-11-19 |
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