CN114347699B - Blackboard equipment for writing by means of magnetic powder - Google Patents
Blackboard equipment for writing by means of magnetic powder Download PDFInfo
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- CN114347699B CN114347699B CN202210031585.8A CN202210031585A CN114347699B CN 114347699 B CN114347699 B CN 114347699B CN 202210031585 A CN202210031585 A CN 202210031585A CN 114347699 B CN114347699 B CN 114347699B
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- magnetic powder
- writing
- plastic plate
- frame
- blackboard
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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
- B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
- B43L1/04—Blackboards
- B43L1/045—Blackboards with magnetic action
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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
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- Drawing Aids And Blackboards (AREA)
Abstract
The invention provides blackboard equipment for writing by means of magnetic powder, which relates to the field of teaching equipment. This blackboard equipment with the help of magnetic powder writes produces static principle with the help of the friction, through plastic slab, magnetic powder box, pivot and flabellum cooperation, the painting brush writes the in-process in the plastic slab outside, and the pivot drives the flabellum rotation, spouts the magnetic powder from the magnetic powder box into in the inside casing, because friction produces static when writing, makes the magnetic powder adsorb on the plastic slab to form the handwriting on the plastic slab. The chalk is replaced by a writing mode on a blackboard, so that the damage to the health of students or teachers caused by dust scattering is avoided.
Description
Technical Field
The invention relates to the technical field of teaching equipment, in particular to blackboard equipment for writing by means of magnetic powder.
Background
The blackboard is not a black board surface, is a plane capable of repeatedly writing in the traditional sense, is hard, is mostly used for teaching, and can be used for writing on by using specific writing materials such as chalks and the like. During teaching, teaching contents and key notes are often required to be written on the blackboard by means of the blackboard, so that students can record and watch the teaching contents and key notes, and unnecessary contents are required to be scrubbed after the teaching contents and key notes are recorded on the blackboard, so that the teaching contents and key notes are convenient to reuse in the later period.
The traditional blackboard erasing method generally adopts a blackboard erasing device, then the surface of the blackboard is scrubbed by the manual handheld blackboard erasing device for students, the treatment is time-consuming and labor-consuming, and because the blackboard is written by chalk, a large amount of dust is easy to fly away during scrubbing, and the health of the students or teachers is damaged. Therefore, the device for automatically scrubbing the blackboard is produced in the market, the device for scrubbing the blackboard in the market at present is generally integrated, the whole blackboard is automatically scrubbed in a large area, and the blackboard in a class does not need to be scrubbed in a large area except for some specific conditions, so that the ordinary blackboard eraser is required to assist, the chalk is written more at present, dust is scattered in scrubbing at the later stage, and the body is damaged.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides blackboard equipment for writing by means of magnetic powder, and solves the problem that dust is generated in the way of erasing blackboard writing in the prior art, and dust drifts cause physical health influence on teachers and students.
(II) technical scheme
In order to achieve the above purpose, the invention is realized by the following technical scheme: the utility model provides a blackboard equipment with the help of magnetic powder writes, includes the frame, be equipped with a plurality of writing components in the frame, writing components is the matrix arrangement, writing components comprises inside casing, base, plastic slab and a plurality of magnetic powder box, the inside casing back is connected with the base, and the base aligns with the inside casing bottom, and a plurality of magnetic powder boxes stack and place on the base, and the intercommunication in magnetic powder box and the inside casing, the plastic slab is established in the inside casing openly.
The magnetic powder box is internally provided with magnetic powder, the painting brushes are fixedly bound on the side edges of the outer frame through ropes, the painting brushes write on the outer sides of the plastic plates, and the magnetic powder is adsorbed on the inner sides of the plastic plates along the moving track of the painting brushes.
Preferably, the front of the magnetic powder box is connected with a plurality of pipelines, the front end of the pipeline is connected with nozzles, the nozzles extend into the inner frame, the nozzles are distributed at equal intervals, the top of the magnetic powder box is hinged with a flip, a rotating shaft is arranged in the magnetic powder box, a plurality of fan blades are connected with a rotating shaft body, motors are symmetrically arranged on the inner wall of the magnetic powder box, and a motor transmission shaft is connected with the end part of the rotating shaft.
Preferably, the hole has all been seted up to the downside on the inside casing, and the recess has been seted up to inside casing inner wall bottom, and inside four corners of inside casing is equipped with the pressure measurement module, and pressure measurement module top and plastic slab contact, be equipped with the singlechip on the base, the singlechip is used for controlling motor, pressure measurement module work, when the painting brush writes on the plastic slab, and the plastic slab extrudees the pressure measurement module, and the singlechip receives signal control motor rotation, and the motor drives the pivot rotation and drifts the magnetic powder for the magnetic powder is spouted from the nozzle.
Preferably, the inner wall of the inner frame is fixedly stuck with white background paper, the surface of the background paper is coated with a smooth coating, the plastic plate is made of transparent plastic, and the inner side of the plastic plate is provided with grids which facilitate the magnetic powder to stay on the plastic plate.
Preferably, the blackboard eraser comprises a blackboard eraser, wherein one end of the blackboard eraser is fixedly bound on the outer side of the outer frame through a rope, a groove is formed in the bottom of the blackboard eraser, a plurality of miniature electric push rods are arranged at the top of the inner wall of the groove, the miniature electric push rods are vertically downward, a storage battery is arranged in the groove, and flannelette is arranged at the bottom of the blackboard eraser and seals the groove.
Preferably, the connecting frame is also provided with a cross-shaped connecting frame, the center of the connecting frame is connected with a handle, the end parts of the bolts are aligned with the four corners of the inner frame, the end parts of the connecting frame are pivoted with bolts, and the front surface of the inner frame is provided with screw holes corresponding to the bolts.
Preferably, a friction block is fixedly arranged at the lower end of the painting brush, and static electricity is generated due to friction when the friction block writes on the outer side of the plastic plate, so that magnetic powder is adsorbed on the inner side of the plastic plate.
Preferably, clamping blocks are arranged on the outer sides of the magnetic powder boxes, and rubber bands are connected between the clamping blocks of two adjacent magnetic powder boxes and used for fixing the magnetic powder boxes together.
Preferably, a plurality of slots are formed in the bottom of the inner wall of the outer frame, one end of the writing component can be inserted into the slots, and a collecting groove is formed in the bottom of the outer frame and used for collecting magnetic powder.
(III) beneficial effects
The invention provides a blackboard device for writing by magnetic powder. The beneficial effects are as follows:
1. this blackboard equipment with the help of magnetic powder writes produces static principle with the help of the friction, through plastic slab, magnetic powder box, pivot and flabellum cooperation, the painting brush writes the in-process in the plastic slab outside, and the pivot drives the flabellum rotation, spouts the magnetic powder from the magnetic powder box into in the inside casing, because friction produces static when writing, makes the magnetic powder adsorb on the plastic slab to form the handwriting on the plastic slab. The chalk is replaced by a writing mode on a blackboard, so that the damage to the health of students or teachers caused by dust scattering is avoided.
Drawings
FIG. 1 is a schematic diagram of a writing element according to the present invention;
FIG. 2 is a schematic view of the inner frame structure of the present invention;
FIG. 3 is a schematic view showing the internal structure of the magnetic powder case of the present invention;
FIG. 4 is a cross-sectional view showing the structure of a magnetic powder case according to the present invention;
FIG. 5 is a perspective view of the structure of the present invention;
FIG. 6 is a schematic diagram of the outer frame structure of the present invention;
FIG. 7 is a detailed view of the plastic panel structure of the present invention;
FIG. 8 is a schematic diagram of a brush according to the present invention;
FIG. 9 is a schematic view of the interior of the blackboard eraser of the invention;
fig. 10 is a schematic view of the structure of the connecting frame of the present invention.
In the figure: 1 outer frame, 11 slot, 2 writing component, 21 inner frame, 211 hole, 212 screw hole, 22 base, 23 plastic plate, 231 grid, 24 pressure measuring module, 25 concave, 3 magnetic powder box, 31 pipe, 32 nozzle, 33 fixture block, 34 rubber band, 35 flip cover, 4 singlechip, 5 spindle, 51 flabellum, 52 motor, 6 painting brush, 61 friction block, 7 link, 71 handle, 72 bolt, 8 blackboard eraser, 81 flannelette, 82 miniature electric push rod, 83 accumulator, 9 collecting tank.
Detailed Description
The embodiment of the invention provides blackboard equipment for writing by magnetic powder, which is shown in figures 1-10, and comprises an outer frame 1, wherein a plurality of writing components 2 are arranged in the outer frame 1, and the writing components 2 are arranged in a matrix. The writing assembly 2 is composed of an inner frame 21, a base 22, a plastic plate 23 and a plurality of magnetic powder cartridges 3, the back of the inner frame 21 is welded to the base 22, and the base 22 is aligned with the bottom of the inner frame 21. A plurality of magnetic powder boxes 3 are stacked and placed on the base 22, the magnetic powder boxes 3 are communicated with the inner frame 21, and the plastic plate 23 is fixedly arranged on the front face of the inner frame 21.
A large amount of magnetic powder is placed in the magnetic powder box 3, the painting brush 6 is fixedly bound on the side edge of the outer frame 1 through a rope, the painting brush 6 is written on the outer side of the plastic plate 23, and the magnetic powder is adsorbed on the inner side of the plastic plate 23 along the moving track of the painting brush 6, so that handwriting is formed.
The front of the magnetic powder box 3 is welded with a plurality of pipelines 31, the front ends of the pipelines 31 are fixedly provided with nozzles 32, and the nozzles 32 extend into the inner frame 21. The magnetic powder cartridges 3 are communicated with the inside of the inner frame 21 by the cooperation of the duct 31 and the nozzle 32.
The nozzles 32 are distributed equidistantly, the top of the magnetic powder box 3 is hinged with a flip 35, and magnetic powder can be put in by opening the flip 35. A rotating shaft 5 is arranged in the magnetic powder box 3, and a plurality of fan blades 51 are welded on the shaft body of the rotating shaft 5. The inner wall of the magnetic powder box 3 is symmetrically welded with a motor 52, and the transmission shaft of the motor 52 is welded with the end part of the rotating shaft 5.
A friction block 61 is fixedly arranged at the lower end of the painting brush 6. Static electricity is generated by friction when the friction block 61 writes on the outside of the plastic plate 23, thereby causing magnetic powder to be adsorbed on the inside of the plastic plate 23.
When the motor 52 works, the motor drives the rotating shaft 5 to rotate, the rotating shaft 5 drives the fan blades 51 to rotate, and magnetic powder is sprayed out of the nozzle 32 along the pipeline 31 under the action of the fan blades 51, so that the sprayed magnetic powder floats in the inner frame 21. Since the brush end of the brush 6 slides over a partial area outside the plastic plate 23, static electricity is generated only in the contact area, and thus magnetic powder is adsorbed along the sliding track of the brush 6.
The four corners of the inner side of the inner frame 21 are fixedly provided with pressure measuring modules 24, and the top ends of the pressure measuring modules 24 are fixedly adhered to the plastic plate 23. The singlechip 4 and the battery pack are fixedly arranged on the base 22. The singlechip 4 is used for controlling the motor 52 and the pressure measuring module 24 to work.
The painting brush 6 generates pressure when writing on the plastic plate 23, so that the plastic plate 23 extrudes the pressure measuring module 24, the pressure measuring module 24 transmits the information of the detected pressure to the singlechip 4, and the singlechip 4 receives a signal to control the motor 52 to rotate.
The inner wall of the inner frame 21 is fixedly stuck with white background paper, and the surface of the background paper is coated with a smooth coating. Since the magnetic powder is black, providing a contrast-sharp white background plate facilitates viewing identification.
The plastic plate 23 is made of transparent plastic. As shown in fig. 7, the inner side of the plastic plate 23 is distributed with numerous small grids 231, and the inner side of the plastic is arranged in a grid shape to facilitate the retention of magnetic powder.
The novel blackboard eraser comprises an outer frame 1, and is characterized by further comprising a blackboard eraser 8, wherein one end of the blackboard eraser 8 is fixedly bound on the outer side of the outer frame 1 through a rope, a groove is formed in the bottom of the blackboard eraser 8, and a plurality of miniature electric push rods 82 are fixedly arranged at the top of the inner wall of the groove. The miniature electric push rod 82 is vertically downward, a storage battery 83 is fixedly arranged in the groove, a flannel 81 is fixedly arranged at the bottom of the blackboard eraser 8, and the groove is sealed by the flannel 81.
In operation, the blackboard eraser 8 is placed on the plastic plate 23, and then the miniature electric push rod 82 stretches and contracts rapidly to knock the plastic plate 23 at high frequency, so that the magnetic powder of the plastic on the inner side of the plastic plate 23 is shaken off through vibration. The fleece 81 has a thickness of 0.5cm. The lint 81 plays a role of buffering and noise reduction. And the lint 81 is used for wiping off dirt on the surface of the plastic plate 23, thereby achieving the effect of wiping and cleaning.
The connecting frame 7 is characterized by further comprising a connecting frame 7, wherein the connecting frame 7 is in a cross shape, a handle 71 is welded at the center of the connecting frame 7, the end parts of the bolts 72 are aligned with four corners of the inner frame 21, the end parts of the connecting frame 7 are pivoted with the bolts 72, and screw holes 212 corresponding to the bolts 72 are formed in the front face of the inner frame 21. By screwing the bolts 72 into the screw holes 212 to fix the connecting frame 7 to the inner frame 21, the grip 71 pulls the connecting frame 7 outward, so that the writing unit 2 can be taken out of the outer frame 1, and the magnetic powder can be replenished.
The outer sides of the magnetic powder boxes 3 are welded with clamping blocks 33, and rubber bands 34 are sleeved between the clamping blocks 33 of two adjacent magnetic powder boxes 3. Which is used to fix a plurality of magnetic powder cartridges 3 together by means of a rubber band 34.
A plurality of slots 11 are formed in the bottom of the inner wall of the outer frame 1, and one end of the writing component 2 can be inserted into the slots 11. Thereby functioning to fix the writing assembly 2 within the outer frame 1. The bottom of the outer frame 1 is fixedly provided with a collecting tank 9, and the upper end of the collecting tank 9 is communicated with the bottom of the outer frame 1. The magnetic powder falling through the hole 211 falls into the collecting tank 9, thereby functioning to collect the magnetic powder by the collecting tank 9.
In summary, according to the blackboard device for writing by means of magnetic powder, by means of the principle of static electricity generated by friction, through the cooperation of the plastic plate 23, the magnetic powder box 3, the rotating shaft 5 and the fan blades 51, the painting brush 6 drives the fan blades 5 to rotate in the writing process outside the plastic plate 23, the magnetic powder is sprayed into the inner frame 21 from the magnetic powder box 3, static electricity is generated by friction during writing, the magnetic powder is adsorbed on the plastic plate 23, and handwriting is formed on the plastic plate 23. The chalk is replaced by a writing mode on a blackboard, so that the damage to the health of students or teachers caused by dust scattering is avoided.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A blackboard device for writing by means of magnetic powder, characterized in that: the writing assembly comprises an outer frame (1), wherein a plurality of writing assemblies (2) are arranged in the outer frame (1), the writing assemblies (2) are arranged in a matrix, each writing assembly (2) consists of an inner frame (21), a base (22), a plastic plate (23) and a plurality of magnetic powder boxes (3), the back of the inner frame (21) is connected with the base (22), the base (22) is aligned with the bottom of the inner frame (21), the plurality of magnetic powder boxes (3) are stacked and placed on the base (22), the magnetic powder boxes (3) are communicated with the inner frame (21), and the plastic plate (23) is arranged on the front of the inner frame (21);
the magnetic powder box (3) is internally provided with magnetic powder, the side edge of the outer frame (1) is fixedly bound with a painting brush (6) through a rope, the painting brush (6) writes on the outer side of the plastic plate (23), and the magnetic powder is adsorbed on the inner side of the plastic plate (23) along the moving track of the painting brush (6);
the front of the magnetic powder box (3) is connected with a plurality of pipelines (31), the front end of each pipeline (31) is connected with a nozzle (32), the nozzles (32) extend into the inner frame (21), the nozzles (32) are distributed at equal intervals, the top of the magnetic powder box (3) is hinged with a flip (35), a rotating shaft (5) is arranged in the magnetic powder box (3), a shaft body of the rotating shaft (5) is connected with a plurality of fan blades (51), motors (52) are symmetrically arranged on the inner wall of the magnetic powder box (3), and a transmission shaft of each motor (52) is connected with the end part of the corresponding rotating shaft (5);
holes (211) are formed in the upper side and the lower side of the inner frame (21), a concave (25) is formed in the bottom of the inner wall of the inner frame (21), pressure measuring modules (24) are arranged at four corners of the inner side of the inner frame (21), the top ends of the pressure measuring modules (24) are in contact with a plastic plate (23), a singlechip (4) is arranged on a base (22), the singlechip (4) is used for controlling a motor (52) and the pressure measuring modules (24) to work, when a painting brush (6) writes on the plastic plate (23), the plastic plate (23) extrudes the pressure measuring modules (24), the singlechip (4) receives signals to control the motor (52) to rotate, and the motor (52) drives a rotating shaft (5) to rotate so as to fly magnetic powder, so that the magnetic powder is sprayed out of a nozzle (32);
the inner wall of the inner frame (21) is fixedly stuck with white background paper, the surface of the background paper is coated with a smooth coating, the plastic plate (23) is made of transparent plastic, a grid (231) is arranged on the inner side of the plastic plate (23), and the grid (231) is convenient for magnetic powder to stay on the plastic plate (23).
2. A blackboard device for writing by means of magnetic powder according to claim 1, characterized in that: still include blackboard eraser (8), blackboard eraser (8) one end is fixed to be binded in the frame (1) outside through the rope, and the recess is seted up to blackboard eraser (8) bottom, and recess inner wall top is equipped with a plurality of miniature electric push rods (82), and miniature electric push rod (82) are vertical downwards, are equipped with battery (83) in the recess, and blackboard eraser (8) bottom is equipped with flannel (81), and flannel (81) seals the recess.
3. A blackboard device for writing by means of magnetic powder according to claim 1, characterized in that: the connecting frame (7) is characterized by further comprising the connecting frame (7), the connecting frame (7) is in a cross shape, the handle (71) is connected to the center of the connecting frame (7), the end parts of the bolts (72) are aligned with four corners of the inner frame (21), the end parts of the connecting frame (7) are pivoted with the bolts (72), and screw holes (212) corresponding to the bolts (72) are formed in the front face of the inner frame (21).
4. A blackboard device for writing by means of magnetic powder according to claim 1, characterized in that: the lower end of the painting brush (6) is fixedly provided with a friction block (61), and static electricity is generated due to friction when the friction block (61) writes on the outer side of the plastic plate (23), so that magnetic powder is adsorbed on the inner side of the plastic plate (23).
5. A blackboard device for writing by means of magnetic powder according to claim 1, characterized in that: the magnetic powder box (3) outside is equipped with fixture block (33), is connected with rubber band (34) between fixture block (33) of two adjacent magnetic powder boxes (3), and rubber band (34) are used for fixing a plurality of magnetic powder boxes (3) together.
6. A blackboard device for writing by means of magnetic powder according to claim 1, characterized in that: a plurality of slots (11) are formed in the bottom of the inner wall of the outer frame (1), one end of the writing component (2) can be inserted into the slots (11), a collecting groove (9) is formed in the bottom of the outer frame (1), and the collecting groove (9) is used for collecting magnetic powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210031585.8A CN114347699B (en) | 2022-01-12 | 2022-01-12 | Blackboard equipment for writing by means of magnetic powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210031585.8A CN114347699B (en) | 2022-01-12 | 2022-01-12 | Blackboard equipment for writing by means of magnetic powder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114347699A CN114347699A (en) | 2022-04-15 |
| CN114347699B true CN114347699B (en) | 2023-04-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210031585.8A Active CN114347699B (en) | 2022-01-12 | 2022-01-12 | Blackboard equipment for writing by means of magnetic powder |
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| CN (1) | CN114347699B (en) |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11309987A (en) * | 1998-04-28 | 1999-11-09 | Mg:Kk | Erasing device for magnetic migration display panel |
| JP3587435B2 (en) * | 1998-10-16 | 2004-11-10 | 株式会社タカラ | Display panel |
| CN2361479Y (en) * | 1999-02-10 | 2000-02-02 | 冯彪 | Dustless blackboard |
| JP2003246190A (en) * | 2002-02-27 | 2003-09-02 | Chemitec Kk | Recording method using honeycomb magnetic display panel |
| KR100510896B1 (en) * | 2003-01-10 | 2005-08-31 | 최창식 | Full Automatic Cleaning Apparatus for Board Erasers |
| KR20120035170A (en) * | 2012-02-07 | 2012-04-13 | 주식회사 나노브릭 | Device structure and apparatus for magnetic display |
| CN206277838U (en) * | 2016-10-18 | 2017-06-27 | 毛超 | One kind automation magnetic blackboard |
| CN209126379U (en) * | 2018-09-03 | 2019-07-19 | 深圳市宝安区沙井街道黄埔小学 | A kind of multifunction magnetic writing blackboard |
| CN211000672U (en) * | 2018-12-24 | 2020-07-14 | 湖南城市学院 | Novel electric blackboard eraser |
| CN110328988A (en) * | 2019-08-13 | 2019-10-15 | 威士达半导体科技(张家港)有限公司 | Magnetic writing board component and meeting writing device |
| CN210759973U (en) * | 2019-09-11 | 2020-06-16 | 阳光学院 | Blackboard eraser capable of absorbing chalk dust |
| CN112606599B (en) * | 2020-12-28 | 2022-07-22 | 山东金太阳教育集团有限公司 | Dust absorption type blackboard eraser is used in teaching based on centrifugal force |
| CN112918161B (en) * | 2021-03-18 | 2022-04-12 | 毛一非 | Magnetic writing board and control method thereof |
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2022
- 2022-01-12 CN CN202210031585.8A patent/CN114347699B/en active Active
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Effective date of registration: 20230406 Address after: Room 102, Building 30, Hexikou New Village, Qingfangcheng Community, Datang Street, Zhuji City, Shaoxing City, Zhejiang Province, 311800 Applicant after: Zhuji Tianshuo Trading Co.,Ltd. Address before: 311800 Puyang Road, Jiyang street, Zhuji, Shaoxing, Zhejiang, 77 Applicant before: JIYANG COLLEGE OF ZHEJIANG A&F University |
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Denomination of invention: A blackboard device for writing with the help of magnetic powder Effective date of registration: 20230506 Granted publication date: 20230425 Pledgee: Shaoxing Bank Co.,Ltd. Zhuji sub branch Pledgor: Zhuji Tianshuo Trading Co.,Ltd. Registration number: Y2023980039898 |