CN111761977B - Dust-absorbing blackboard eraser - Google Patents
Dust-absorbing blackboard eraser Download PDFInfo
- Publication number
- CN111761977B CN111761977B CN202010818827.9A CN202010818827A CN111761977B CN 111761977 B CN111761977 B CN 111761977B CN 202010818827 A CN202010818827 A CN 202010818827A CN 111761977 B CN111761977 B CN 111761977B
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- dust
- box body
- fixed
- rotating shaft
- cabin
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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
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- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a dust-absorption blackboard eraser, which relates to the technical field of blackboard erasers and comprises a box body, an erasing mechanism, a through hole mechanism and a dust absorption mechanism, wherein the erasing mechanism is arranged at the bottom of the box body and used for erasing chalk characters on a blackboard, the erasing mechanism is connected with the through hole mechanism through a bevel gear I, the through hole mechanism is provided with two front sides and two rear sides which are symmetrically arranged in the box body, the through hole mechanism is used for dredging a dust inlet hole, the through hole mechanism is connected with the dust absorption mechanism through a belt I, the dust absorption mechanism is arranged at the bottom of a dust collection cabin, and the dust absorption mechanism is used for collecting dust generated after the erasing mechanism erases the blackboard into the dust collection cabin. The whole blackboard eraser is compact in structure, the erasing mechanism, the through hole mechanism and the dust collection mechanism can run simultaneously, chalk characters on a blackboard can be automatically erased, dust inlet holes can be intermittently dredged, and dust collection capacity and efficiency are greatly improved.
Description
Technical Field
The invention relates to the technical field of blackboard erasers, in particular to a dust collection type blackboard eraser.
Background
The blackboard eraser is a common object in schools and can be used for erasing chalk characters on a blackboard, a large amount of dust is generated in the process of erasing the chalk characters and floats in the air, so that the serious threat is brought to the physical health of teachers, even some lung diseases can be caused, and the blackboard eraser capable of collecting the generated dust while erasing the chalk characters is needed.
Although some blackboard erasers can collect dust at present, in the long-time use process of the blackboard erasers, the dust can be accumulated at the dust inlet hole to cause blockage, so that the dust inlet hole is gradually reduced, the dust is difficult to enter the blackboard erasers during use, the dust collection capacity and efficiency are greatly reduced, and therefore the dust inlet hole needs to be dredged manually, and time and labor are wasted.
Disclosure of Invention
The invention aims to provide a dust-absorption blackboard eraser to solve the defects caused in the prior art.
A dust-absorption blackboard eraser comprises a box body, an erasing mechanism, a through hole mechanism and a dust absorption mechanism;
the dust collecting box comprises a box body and is characterized in that a dust collecting cabin and a battery mounting cabin are respectively arranged on the left side and the right side of the box body, an exhaust hole is formed in the side wall of the dust collecting cabin, a first cover plate is fixed at the top of the dust collecting cabin, a lithium battery is mounted in the battery mounting cabin, a second cover plate is fixed at the top of the battery mounting cabin, a USB interface for charging the lithium battery is arranged on the front side of the box body, and a plurality of dust inlet holes are symmetrically formed in the front side and the rear side of the bottom of the box body;
the erasing mechanism is arranged at the bottom of the box body and used for erasing chalk characters on a blackboard and is connected with the through hole mechanism through a bevel gear I;
the through hole mechanisms are arranged on the front side and the rear side of the box body symmetrically, are used for dredging the dust inlet holes, and are connected with the dust collection mechanism through a first belt;
the dust collection mechanism is arranged at the bottom of the dust collection cabin and is used for collecting dust generated after the blackboard is wiped by the wiping mechanism into the dust collection cabin.
Preferably, the wiping mechanism further comprises a brush, a first belt wheel and a first rotating shaft, the brush is provided with a plurality of brushes and is located at the bottom of the box body, a fixing shaft penetrating through the bottom of the box body is fixed to the tops of all the brushes, the first belt wheel is arranged on the fixing shaft, the first rotating shaft is rotatably connected with the bottom of the box body, a second belt wheel is fixed to the first rotating shaft, the second belt wheel is connected with the first belt wheel through a second belt, a mounting plate is rotatably connected to the first rotating shaft through a bearing seat, and the first bevel gear is fixed to the top of the first rotating shaft.
In this embodiment, the through hole mechanism includes a cam, a sliding plate, a guide post, a return spring, an insertion rod, and a second rotating shaft, the second rotating shaft is horizontally arranged in the box body, one end of the second rotating shaft is rotationally connected with the inner wall of the box body, the second rotating shaft is rotationally connected with the mounting plate through a bearing seat, a second bevel gear is fixed at one end of the rotating shaft, which is positioned in the mounting plate, and is meshed with the first bevel gear, the cam is fixed on the second rotating shaft, the sliding plate is arranged below the cam, the left end and the right end of the sliding plate are respectively connected with the guide post in a sliding way, the guide post is fixed in the box body, the reset spring is sleeved on the guide post and positioned between the sliding plate and the bottom of the box body, the top of guide post is fixed with keeps off the ring, the inserted bar is equipped with a plurality of and is fixed in the bottom of slide, the inserted bar and dust inlet hole one-to-one, be fixed with band pulley three on one of them pivot two.
Preferably, dust absorption mechanism includes miniature centrifugal fan and micro motor, miniature centrifugal fan is fixed in the bottom in collection grey cabin, miniature centrifugal fan's side is equipped with the air inlet, miniature centrifugal fan's gas outlet passes through the pipeline and is connected with collection grey cabin, be equipped with band pulley four on miniature centrifugal fan's the input shaft, micro motor is fixed in the bottom in collection grey cabin, be fixed with band pulley five on micro motor's the output shaft, pass through belt three between band pulley four and the band pulley five and be connected, pass through between band pulley three and the band pulley five belt one is connected, the front side of box body is equipped with the switch, establish ties between lithium cell, switch and the micro motor three.
Preferably, a filter screen is arranged on the exhaust hole.
Preferably, the front and rear side walls of the box body are symmetrically provided with anti-skid grains.
The invention has the following advantages:
when the blackboard eraser is used, the erasing mechanism, the through hole mechanism and the dust collection mechanism can move simultaneously through the transmission mechanism, the erasing mechanism can erase chalk characters on a blackboard and is connected with the through hole mechanism through the bevel gear I, the cam on the through hole mechanism can intermittently dredge dust blocked in the dust inlet hole and is connected with the dust collection mechanism through the belt I, the dust collection mechanism collects the generated dust into the dust collection cabin, the whole blackboard eraser is compact in structure, the dust inlet hole can be automatically dredged, and the dust collection capacity and efficiency are greatly improved.
Drawings
Fig. 1 and 2 are overall three-dimensional structural diagrams of the present invention.
Fig. 3, 4, 5 and 6 are schematic views of the internal structure of the present invention.
Fig. 7 is a partial enlarged view of the invention at a in fig. 6.
Wherein: 1. the dust collecting box comprises a box body 11, a dust collecting cabin 111, an exhaust hole 112, a filter screen 113, a cover plate I, a cover plate 12, a battery installation cabin 121, a lithium battery 122, a cover plate II, a cover plate 13, a USB interface 14, a dust inlet hole 15, a switch 16, an anti-slip pattern 2, a wiping mechanism 21, a bevel gear I, a bevel gear 22, a brush 23, a fixed shaft 24, a pulley I, a pulley 25, a rotating shaft I, a rotating shaft 26, a pulley II, a belt 28, an installation plate 3, a through hole mechanism 31, a belt I, a belt 32, a rotating shaft II, a rotating shaft 33, a bevel gear II, a cam 34, a cam 35, a sliding plate 36, a guide column 361, a baffle ring 37, a return spring 38, a plug rod 39, a pulley III, a pulley 4, a dust suction mechanism 41, a miniature centrifugal fan 411, an air inlet 412, an air outlet 413, a pulley IV, a 42, a miniature motor 421.
Detailed Description
The following detailed description of the embodiments of the present invention will be given in order to provide those skilled in the art with a more complete, accurate and thorough understanding of the inventive concept and technical solutions of the present invention.
As shown in fig. 1-7, the invention provides a dust-absorbing blackboard eraser, which comprises a box body 1, an erasing mechanism 2, a through hole mechanism 3 and a dust-absorbing mechanism 4;
the dust collecting box comprises a box body 1 and is characterized in that a dust collecting cabin 11 and a battery installation cabin 12 are respectively arranged on the left side and the right side of the box body 1, an exhaust hole 111 is formed in the side wall of the dust collecting cabin 11, a first cover plate 113 is fixed on the top of the dust collecting cabin 11, a lithium battery 121 is installed in the battery installation cabin 12, a second cover plate 122 is fixed on the top of the battery installation cabin 12, a USB interface 13 for charging the lithium battery 121 is arranged on the front side of the box body 1, and a plurality of dust inlet holes 14 are symmetrically formed in the front side and the rear side of the bottom of the box body 1;
the erasing mechanism 2 is arranged at the bottom of the box body 1, the erasing mechanism 2 is used for erasing chalk characters on a blackboard, and the erasing mechanism 2 is connected with the through hole mechanism 3 through a bevel gear I21;
the through hole mechanisms 3 are arranged on the front side and the rear side of the box body 1 symmetrically, the through hole mechanisms 3 are used for dredging the dust inlet holes 14, and the through hole mechanisms 3 are connected with the dust collection mechanism 4 through a first belt 31;
the dust collection mechanism 4 is arranged at the bottom of the dust collection cabin 11, and the dust collection mechanism 4 is used for collecting dust generated after the blackboard is wiped by the wiping mechanism 2 into the dust collection cabin 11.
In this embodiment, the wiping mechanism further includes a brush 22, a first belt wheel 24 and a first rotating shaft 25, the brush 22 is provided with a plurality of brushes and located at the bottom of the box body 1, a fixing shaft 23 penetrating through the bottom of the box body 1 is fixed at the top of all the brushes 22, the first belt wheel 24 is arranged on the fixing shaft 23, the first rotating shaft 25 is rotatably connected with the bottom of the box body 1, a second belt wheel 26 is fixed on the first rotating shaft 25, the second belt wheel 26 is connected with all the first belt wheels 24 through a second belt 27, a mounting plate 28 is rotatably connected to the first rotating shaft 25 through a bearing seat, and the first bevel gear 21 is fixed at the top of the first rotating shaft 25.
In this embodiment, the through-hole mechanism includes a cam 34, a sliding plate 35, a guiding post 36, a return spring 37, an insert rod 38 and a second rotating shaft 32, the second rotating shaft 32 is horizontally disposed in the box body, and one end of the second rotating shaft 32 is rotatably connected to the inner wall of the box body 1, the second rotating shaft 32 is rotatably connected to the mounting plate 28 through a bearing seat, a second bevel gear 33 is fixed to one end of the second rotating shaft 32 located in the mounting plate 28, the second bevel gear 33 is engaged with the first bevel gear 21, the cam 34 is fixed to the second rotating shaft 32, the sliding plate 35 is disposed below the cam 34, the left and right ends of the sliding plate 35 are respectively slidably connected to the guiding post 36, the guiding post 36 is fixed in the box body 1, the return spring 37 is sleeved on the guiding post 36 and located between the sliding plate and the bottom of the box body 1, a retaining ring 361 is fixed to the top of the guiding post 36, the insert rod 38 is provided with a plurality of and fixed to the bottom of the sliding plate 35, the inserted rods 38 correspond to the dust inlet holes 14 one by one, and a third belt wheel 39 is fixed on one second rotating shaft 32.
In this embodiment, the dust suction mechanism 4 includes a micro centrifugal fan 41 and a micro motor 42, the micro centrifugal fan 41 is fixed at the bottom of the dust collection cabin 11, an air inlet 411 is arranged on the side surface of the micro centrifugal fan 41, an air outlet 412 of the micro centrifugal fan 41 is connected with the dust collection cabin 11 through a pipeline, a belt wheel four 413 is arranged on an input shaft of the micro centrifugal fan 41, the micro motor 42 is fixed at the bottom of the dust collection cabin 11, a belt wheel five 421 is fixed on an output shaft of the micro motor 42, the belt wheel four 413 is connected with the belt wheel five 421 through a belt three 422, the belt wheel three 39 is connected with the belt wheel five 421 through the belt one 31, a switch 15 is arranged on the front side of the box body 1, and the lithium battery 121, the switch 15 and the micro motor 42 are connected in series.
In this embodiment, a filter screen 112 is disposed on the exhaust hole 111.
In this embodiment, the front and rear side walls of the box body 1 are symmetrically provided with anti-slip lines 16.
The specific implementation mode and principle are as follows:
in practical application, the switch 15 is turned on, the output shaft of the micro motor 42 rotates the second rotating shaft 32 through belt transmission, the second rotating shaft 32 rotates the first rotating shaft 25 through gear transmission, the first rotating shaft 25 rotates the brush 22 through belt transmission and erases chalk characters on a blackboard, dust enters the box body 1 through the dust inlet hole 14 at the bottom of the box body 1, the cam 34 fixed on the second rotating shaft 32 intermittently presses the sliding plate 35 down, the inserting rod 38 at the bottom of the sliding plate 35 dredges the dust in the dust inlet hole 14 in the pressing process, then the sliding plate 35 is reset under the action of the reset spring 37, the output shaft of the micro motor 42 also rotates the micro centrifugal fan 41 through belt transmission while the brush 22 rotates, the dust in the box body 1 enters the micro centrifugal fan 41 through the air inlet 411 of the micro centrifugal fan 41, and is collected into the dust collection chamber 11 through the air outlet 412 of the micro centrifugal fan 41, the air is discharged from the air discharge hole 111.
To sum up, the erasing mechanism 2, the through hole mechanism 3 and the dust collection mechanism 4 in the blackboard eraser can move simultaneously through the transmission mechanism, the erasing mechanism 2 can erase chalk characters on the blackboard and is connected with the through hole mechanism 3 through the bevel gear I21, the cam 34 on the through hole mechanism 3 can intermittently dredge dust blocked in the dust inlet 14 and is connected with the dust collection mechanism 4 through the belt I31, the dust collection mechanism 4 collects the generated dust into the dust collection cabin 11, the whole blackboard eraser is compact in internal structure, and the efficiency of erasing the chalk characters, dredging the dust inlet 14 and collecting the dust can be greatly improved during use.
The invention is described above with reference to the accompanying drawings, it is obvious that the specific implementation of the invention is not limited by the above-mentioned manner, and it is within the scope of the invention to adopt various insubstantial modifications of the inventive concept and solution of the invention, or to apply the inventive concept and solution directly to other applications without modification.
Claims (4)
1. A dust absorption formula blackboard eraser which characterized in that: comprises a box body (1), a wiping mechanism (2), a through hole mechanism (3) and a dust absorption mechanism (4);
the dust collecting box is characterized in that a dust collecting cabin (11) and a battery mounting cabin (12) are respectively arranged on the left side and the right side of the box body (1), an exhaust hole (111) is formed in the side wall of the dust collecting cabin (11), a first cover plate (113) is fixed to the top of the dust collecting cabin (11), a lithium battery (121) is mounted in the battery mounting cabin (12), a second cover plate (122) is fixed to the top of the battery mounting cabin (12), a USB interface (13) for charging the lithium battery (121) is arranged on the front side of the box body (1), and a plurality of dust inlet holes (14) are symmetrically formed in the front side and the rear side of the bottom of the box body (1);
the erasing mechanism (2) is arranged at the bottom of the box body (1), the erasing mechanism (2) is used for erasing chalk characters on a blackboard, and the erasing mechanism (2) is connected with the through hole mechanism (3) through a bevel gear I (21);
the through hole mechanisms (3) are arranged on the front side and the rear side of the box body (1) symmetrically, the through hole mechanisms (3) are used for dredging dust inlet holes (14), and the through hole mechanisms (3) are connected with the dust collection mechanism (4) through a first belt (31);
the dust collection mechanism (4) is arranged at the bottom of the dust collection cabin (11), and the dust collection mechanism (4) is used for collecting dust generated after the blackboard is wiped by the wiping mechanism (2) into the dust collection cabin (11);
the wiping mechanism further comprises brushes (22), belt wheels I (24) and a rotating shaft I (25), the brushes (22) are provided with a plurality of brushes and are located at the bottom of the box body (1), fixing shafts (23) penetrating through the bottom of the box body (1) are fixed to the tops of all the brushes (22), the belt wheels I (24) are arranged on the fixing shafts (23), the rotating shaft I (25) is rotatably connected with the bottom of the box body (1), belt wheels II (26) are fixed to the rotating shaft I (25), the belt wheels II (26) are connected with all the belt wheels I (24) through belts II (27), a mounting plate (28) is rotatably connected to the rotating shaft I (25) through a bearing seat, and bevel gears I (21) are fixed to the tops of the rotating shaft I (25);
the through hole mechanism comprises a cam (34), a sliding plate (35), a guide post (36), a return spring (37), an inserted rod (38) and a second rotating shaft (32), the second rotating shaft (32) is horizontally arranged in the box body, one end of the second rotating shaft (32) is rotationally connected with the inner wall of the box body (1), the second rotating shaft (32) is rotationally connected with the mounting plate (28) through a bearing seat, a second bevel gear (33) is fixed at one end of the second rotating shaft (32) positioned in the mounting plate (28), the second bevel gear (33) is meshed with the first bevel gear (21), the cam (34) is fixed on the second rotating shaft (32), the sliding plate (35) is arranged below the cam (34), the left end and the right end of the sliding plate (35) are respectively in sliding connection with the guide post (36), the guide post (36) is fixed in the box body (1), the return spring (37) is sleeved on the guide post (36) and positioned between the sliding plate and the bottom of the box body (1), the top of guide post (36) is fixed with fender ring (361), inserted bar (38) are equipped with a plurality of and are fixed in the bottom of slide (35), inserted bar (38) and dust inlet hole (14) one-to-one, are fixed with band pulley third (39) on one of them pivot second (32).
2. A dust-absorbing blackboard eraser according to claim 1, characterised in that: dust absorption mechanism (4) are including miniature centrifugal fan (41) and micro motor (42), miniature centrifugal fan (41) are fixed in the bottom of collection grey cabin (11), the side of miniature centrifugal fan (41) is equipped with air inlet (411), gas outlet (412) of miniature centrifugal fan (41) are connected with collection grey cabin (11) through the pipeline, be equipped with band pulley four (413) on the input shaft of miniature centrifugal fan (41), micro motor (42) are fixed in the bottom of collection grey cabin (11), be fixed with band pulley five (421) on the output shaft of micro motor (42), be connected through three (422) in the belt between band pulley four (413) and band pulley five (421), pass through between band pulley three (39) and band pulley five (421) belt (31) connect, the front side of box body (1) is equipped with switch (15), lithium cell (121), The switch (15) and the micro motor (42) are connected in series.
3. A dust-absorbing blackboard eraser according to claim 1, characterised in that: and a filter screen (112) is arranged on the exhaust hole (111).
4. A dust-absorbing blackboard eraser according to claim 1, characterised in that: the front side wall and the rear side wall of the box body (1) are symmetrically provided with anti-skid grains (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010818827.9A CN111761977B (en) | 2020-08-14 | 2020-08-14 | Dust-absorbing blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010818827.9A CN111761977B (en) | 2020-08-14 | 2020-08-14 | Dust-absorbing blackboard eraser |
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| Publication Number | Publication Date |
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| CN111761977A CN111761977A (en) | 2020-10-13 |
| CN111761977B true CN111761977B (en) | 2021-09-07 |
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| CN202010818827.9A Active CN111761977B (en) | 2020-08-14 | 2020-08-14 | Dust-absorbing blackboard eraser |
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| CN108903845A (en) * | 2018-07-19 | 2018-11-30 | 曾德生 | A kind of indoor wall top dust cleaning equipment of household |
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| JPH08238895A (en) * | 1995-03-03 | 1996-09-17 | Mitsui High Tec Inc | Eraser for whiteboard |
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| CN111761977A (en) | 2020-10-13 |
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