CN210553842U - Piezoelectric dust-absorbing blackboard eraser - Google Patents
Piezoelectric dust-absorbing blackboard eraser Download PDFInfo
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- CN210553842U CN210553842U CN201920753933.6U CN201920753933U CN210553842U CN 210553842 U CN210553842 U CN 210553842U CN 201920753933 U CN201920753933 U CN 201920753933U CN 210553842 U CN210553842 U CN 210553842U
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Abstract
A piezoelectric dust collection blackboard eraser comprises an installation bin, a main control chip, a display module, a photovoltaic power generation board and a dust collection box; the photovoltaic power generation board is arranged at the top of the installation bin, and the storage battery is arranged at the bottom of the photovoltaic power generation board; a photovoltaic inverter is arranged on the photovoltaic power generation panel; the display module is arranged on one side of the photovoltaic power generation panel; insulating shells are arranged on the outer sides of the storage battery and the photovoltaic power generation panel; the dust collecting box is arranged in the mounting bin; the top of the dust collecting box is provided with a ventilation top cover; the dust collecting box is provided with a mounting groove, and a filter screen is arranged in the mounting groove in a sliding manner; a handle is arranged on one side of the filter screen; one side of the dust collecting box is provided with a connecting piece; the bottom of the mounting bin is provided with bristles; a piezoelectric ceramic plate is arranged inside the installation bin; the main control chip is arranged inside the mounting bin, and an isolation plate is arranged outside the main control chip; the utility model uses the sunlight to generate electricity through the photovoltaic power generation plate, and has small power consumption; the chalk is more convenient to use, and the chalk dust is prevented from splashing to affect the physical health of teachers and students.
Description
Technical Field
The utility model relates to a blackboard eraser technical field especially relates to a piezoelectricity dust absorption blackboard eraser.
Background
According to the statistics of the relevant reports of China, the amount of chalk dust inhaled by teachers in China in class is about 200g, and each person suffers from lung diseases and cancers about 20%/year. Under the current Chinese education background, the teaching mode of teaching the face to listen by the teacher is difficult to change in a short time. This causes the problem of chalk dust to be more serious, but it is a serious hazard to teachers and students in various organs such as eyes, skin, ears, respiratory tract, etc.
The traditional blackboard eraser only has a simple wiping effect and has no obvious effect, so that chalk dust is full of classrooms and flies. The existing dust-absorbing blackboard eraser adopts a working principle similar to a dust-absorbing machine, is slightly heavy and clumsy, is not popularized in all aspects, and even is not known by people; the currently commonly used blackboard eraser has poor effect, and firstly, the blackboard eraser is not completely erased, and white marks of one piece of blackboard eraser can be left. Secondly, after the blackboard is erased, the eraser also has more chalk dust on the hand and on the ground, and a series of later cleaning work is carried out. Most importantly, the flying dust has great harm to human bodies, is not beneficial to physical and psychological health and does not meet the requirement of environmental protection. In the prior art, the dust-absorbing blackboard eraser is clumsy in principle and not too wide in application range.
In order to solve the problems, the application provides a piezoelectric dust absorption blackboard eraser.
SUMMERY OF THE UTILITY MODEL
Objects of the invention
In order to solve the technical problems that the principle of the dust-absorbing blackboard eraser is clumsy and the application range is not too wide in the prior art, the utility model provides a piezoelectric dust-absorbing blackboard eraser, which generates electricity by utilizing sunlight through a photovoltaic power generation plate and has small power consumption; the chalk is more convenient to use, and the chalk dust is prevented from splashing to affect the physical health of teachers and students.
(II) technical scheme
In order to solve the problems, the utility model provides a piezoelectric dust collection blackboard eraser, which comprises an installation bin, a main control chip, a display module, a photovoltaic power generation board and a dust collection box;
the photovoltaic power generation board is arranged at the top of the installation bin, and the storage battery is arranged at the bottom of the photovoltaic power generation board; the photovoltaic power generation board is provided with a photovoltaic inverter and is electrically connected with the storage battery in series through the photovoltaic inverter; the display module is arranged on one side of the photovoltaic power generation panel; the display module is electrically connected with the storage battery and is used for displaying the residual electric quantity of the storage battery; insulating shells are arranged on the outer sides of the storage battery and the photovoltaic power generation panel; the fan is arranged on the insulating shell and is electrically connected with the storage battery;
the dust collecting box is arranged in the mounting bin and is positioned below the fan; the top of the dust collecting box is provided with a ventilation top cover; the dust collecting box is provided with a mounting groove, and a filter screen is arranged in the mounting groove in a sliding manner; a handle is arranged on one side of the filter screen; one side of the dust collecting box is provided with a connecting piece which extends out of the mounting bin; the bottom of the dust collecting box is provided with an opening, the interior of the mounting bin is provided with a guide plate, and the guide plate is connected with the bottom of the dust collecting box in a sliding manner;
the bottom of the mounting bin is provided with bristles; a piezoelectric ceramic plate is arranged in the mounting bin and is positioned at an opening at the bottom of the mounting bin; the main control chip is arranged inside the mounting bin, and an isolation plate is arranged outside the main control chip; the main control chip is electrically connected with the piezoelectric ceramic plate and the storage battery, and the main control chip is in control connection with the fan and the display module.
Preferably, a plurality of dust blocking pieces are arranged inside the installation bin, and each dust blocking piece comprises an electromagnet, an elastic piece and a baffle; the electromagnet is electrically connected with the storage battery and is in control connection with the main control chip; one end of the elastic piece is arranged on the electromagnet, and the elastic piece is long or contracted along the horizontal direction; the baffle is arranged at the other end of the elastic part and is magnetically connected with the electromagnet.
Preferably, a starting switch is arranged on the shell of the installation bin, and the starting switch is electrically connected between the main control chip and the storage battery in series.
Preferably, the display module is an Amoled liquid crystal panel.
Preferably, the fan is a negative pressure fan or a turbofan.
Preferably, the storage battery is a lithium ion battery.
Preferably, the capacity of the storage battery is 200-400 mah.
Preferably, the main control chip is stc89c 51.
The above technical scheme of the utility model has following profitable technological effect: a piezoelectric ceramic plate is arranged inside the mounting bin, and is used in actual use; the bristles are pressed by the blackboard and transmitted to the piezoelectric ceramic plate, and when the piezoelectric ceramic plate is pressed, mechanical energy is converted into electric energy which is transmitted to the main control chip in the form of electric signals; the main control chip controls the fan to rotate to generate attraction force to suck the chalk dust upwards, and meanwhile, the electromagnet on the dust blocking piece is electrified to generate magnetic force to attract the baffle plate towards the direction of the electromagnet; meanwhile, the elastic parts are kept in a contraction state, an opening is formed between the adjacent dust blocking parts, and chalk dust adsorbed on the brush hair can smoothly enter the dust collection box through the dust blocking parts; when the blackboard eraser leaves the blackboard, the piezoelectric ceramic plate loses power; the main control chip controls the fan to stop rotating, meanwhile, the electromagnet on the dust blocking piece loses power, and the baffle plate resets under the action of the elastic piece; the dust blocking piece is in a closed state, and chalk dust entering the dust collecting box can be blocked by the dust blocking piece and cannot fall off; when more dust in the dust collecting box needs to be cleaned, the blackboard eraser is put upside down, and the brush hair faces upwards; the dust collection box is pulled out through the connecting piece, so that chalk dust in the dust collection box can be cleaned, and meanwhile, the handle can be pulled to pull the filter screen out of the dust collection box for cleaning; the chalk dust is prevented from covering the filter screen to influence the air draft effect of the fan; the utility model uses the sunlight to generate electricity through the photovoltaic power generation plate, and has small power consumption; the chalk is more convenient to use, and the chalk dust is prevented from splashing to affect the physical health of teachers and students.
Drawings
Fig. 1 is a schematic structural view of the piezoelectric dust-absorbing blackboard eraser of the present invention.
Fig. 2 is a schematic structural view of the piezoelectric dust-absorbing blackboard eraser according to the present invention, in an open state of the dust-blocking member.
Fig. 3 is an enlarged schematic structural view of the dust collecting box in the piezoelectric dust-absorbing blackboard eraser of the present invention.
Reference numerals: 1. a photovoltaic power generation panel; 2. a display module; 3. a storage battery; 4. an insulating housing; 5. starting a switch; 6. a main control chip; 7. a separator plate; 8. a piezoelectric ceramic plate; 9. brushing; 10. a dust collecting box; 101. filtering with a screen; 102. a ventilation top cover; 103. a handle; 11. a dust blocking member; 111. an electromagnet; 112. an elastic member; 113. a baffle plate; 12. a baffle; 13. a connecting member; 14. a fan; 15. and (6) installing a bin.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 1-3, the piezoelectric dust-absorbing blackboard eraser provided by the present invention comprises an installation bin 15, a main control chip 6, a display module 2, a photovoltaic power generation panel 1 and a dust collection box 10;
the photovoltaic power generation panel 1 is arranged at the top of the installation bin 15, and the storage battery 3 is arranged at the bottom of the photovoltaic power generation panel 1; a photovoltaic inverter is arranged on the photovoltaic power generation panel 1, and the photovoltaic power generation panel 1 is electrically connected with the storage battery 3 in series through the photovoltaic inverter; the display module 2 is arranged on one side of the photovoltaic power generation panel 1; the display module 2 is electrically connected with the storage battery 3 and is used for displaying the residual electric quantity of the storage battery 3; the outer sides of the storage battery 3 and the photovoltaic power generation panel 1 are both provided with an insulating shell 4; the fan 14 is arranged on the insulating shell 4, and the fan 14 is electrically connected with the storage battery 3;
the dust collecting box 10 is arranged in the installation bin 15 and is positioned below the fan 14; a ventilation top cover 102 is arranged at the top of the dust box 10; the dust collecting box 10 is provided with an installation groove, and a filter screen 101 is arranged in the installation groove in a sliding manner; a handle 103 is arranged on one side of the filter screen 101; one side of the dust collecting box 10 is provided with a connecting piece 13, and the connecting piece 13 extends out of the mounting bin 15; the bottom of the dust collecting box 10 is provided with an opening, the inside of the mounting bin 15 is provided with a guide plate 12, and the guide plate 12 is connected with the bottom of the dust collecting box 10 in a sliding way;
the bottom of the mounting bin 15 is provided with bristles 9; a piezoelectric ceramic plate 8 is arranged inside the mounting bin 15, and the piezoelectric ceramic plate 8 is positioned at an opening at the bottom of the mounting bin 15; the main control chip 6 is arranged inside the mounting bin 15, and the isolation plate 7 is arranged outside the main control chip 6; the main control chip 6 is electrically connected with the piezoelectric ceramic plate 8 and the storage battery 3, and the main control chip 6 is in control connection with the fan 14 and the display module 2.
In the utility model, the piezoelectric ceramic plate 8 is arranged inside the mounting bin 15, and is used in practice; the brush bristles 9 are pressed by the blackboard and transmitted to the piezoelectric ceramic plate 8, and when the piezoelectric ceramic plate 8 is pressed, mechanical energy is converted into electric energy which is transmitted to the main control chip 6 in the form of electric signals; the main control chip 6 controls the fan 14 to rotate to generate attraction force to suck the chalk dust upwards, and meanwhile, the electromagnet 111 on the dust blocking piece 11 is electrified to generate magnetic force to attract the baffle 113 towards the direction of the electromagnet 111; meanwhile, the elastic pieces 112 keep a contraction state, an opening is formed between the adjacent dust blocking pieces 11, and chalk dust adsorbed on the brush hairs 9 can smoothly enter the dust collection box 10 through the dust blocking pieces 11; when the blackboard eraser leaves the blackboard, the piezoelectric ceramic plate 8 loses power; the main control chip 6 controls the fan 14 to stop rotating, and meanwhile, the electromagnet 111 on the dust blocking piece 11 loses power, and the baffle 113 resets under the action of the elastic piece 112; the dust blocking piece 11 is in a closed state, and the chalk dust entering the dust collecting box 10 can be blocked by the dust blocking piece 11 and can not fall down; when more dust in the dust collecting box 10 needs to be cleaned, the blackboard eraser is placed upside down, and the brush hairs 9 face upwards; the connecting piece 13 is used for pulling out the dust collection box 10, so that chalk dust in the dust collection box 10 can be cleaned, and meanwhile, the handle 103 can be pulled to pull out the filter screen 101 from the dust collection box 10 for cleaning; the chalk dust is prevented from covering the filter screen 101, so that the air draft effect of the fan 14 is prevented from being influenced; the utility model uses the sunlight to generate electricity through the photovoltaic power generation plate, and has small power consumption; the chalk is more convenient to use, and the chalk dust is prevented from splashing to affect the physical health of teachers and students.
In an alternative embodiment, a plurality of dust blocking members 11 are arranged inside the installation bin 15, and each dust blocking member 11 comprises an electromagnet 111, an elastic member 112 and a baffle 113; the electromagnet 111 is electrically connected with the storage battery 3 and is in control connection with the main control chip 6; one end of the elastic member 112 is disposed on the electromagnet 111, and the elastic member 112 is elongated or contracted in the horizontal direction; the baffle 113 is disposed at the other end of the elastic member 112, and the baffle 113 is magnetically connected to the electromagnet 111.
In an optional embodiment, the shell of the installation bin 15 is provided with a starting switch 5, the starting switch 5 is electrically connected between the main control chip 6 and the storage battery 3 in series, and the starting switch 5 can be turned off when the installation bin is not used, so that the false touch is prevented.
In an optional embodiment, the display module 2 is an Amoled liquid crystal panel, and the Amoled liquid crystal panel does not emit light when displaying black, which saves more power.
In an alternative embodiment, the fan 14 is a negative pressure fan or a turbofan.
In an alternative embodiment, the accumulator 3 is a lithium ion battery.
In an alternative embodiment, the capacity of the accumulator 3 is 200-400 mah.
In an alternative embodiment, the main control chip 6 is stc89c 51.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (8)
1. The piezoelectric dust collection blackboard eraser is characterized by comprising an installation bin (15), a main control chip (6), a display module (2), a photovoltaic power generation board (1) and a dust collection box (10);
the photovoltaic power generation panel (1) is arranged at the top of the installation bin (15), and the storage battery (3) is arranged at the bottom of the photovoltaic power generation panel (1); a photovoltaic inverter is arranged on the photovoltaic power generation panel (1), and the photovoltaic power generation panel (1) is electrically connected with the storage battery (3) in series through the photovoltaic inverter; the display module (2) is arranged on one side of the photovoltaic power generation panel (1); the display module (2) is electrically connected with the storage battery (3) and is used for displaying the residual electric quantity of the storage battery (3); insulating shells (4) are arranged on the outer sides of the storage battery (3) and the photovoltaic power generation panel (1); the insulating shell (4) is provided with a fan (14), and the fan (14) is electrically connected with the storage battery (3);
the dust collecting box (10) is arranged in the mounting bin (15) and is positioned below the fan (14); a ventilation top cover (102) is arranged at the top of the dust collection box (10); the dust collection box (10) is provided with an installation groove, and a filter screen (101) is arranged in the installation groove in a sliding manner; a handle (103) is arranged on one side of the filter screen (101); one side of the dust collection box (10) is provided with a connecting piece (13), and the connecting piece (13) extends out of the mounting bin (15); an opening is arranged at the bottom of the dust collection box (10), a guide plate (12) is arranged inside the installation bin (15), and the guide plate (12) is connected with the bottom of the dust collection box (10) in a sliding manner;
the bottom of the mounting bin (15) is provided with bristles (9); a piezoelectric ceramic plate (8) is arranged inside the mounting bin (15), and the piezoelectric ceramic plate (8) is positioned at an opening at the bottom of the mounting bin (15); the main control chip (6) is arranged inside the mounting bin (15), and an isolation plate (7) is arranged outside the main control chip (6); the main control chip (6) is electrically connected with the piezoelectric ceramic plate (8) and the storage battery (3), and the main control chip (6) is in control connection with the fan (14) and the display module (2).
2. The piezoelectric dust-absorption blackboard eraser according to claim 1, wherein a plurality of dust-blocking members (11) are arranged inside the mounting bin (15), and the dust-blocking members (11) comprise electromagnets (111), elastic members (112) and baffles (113); the electromagnet (111) is electrically connected with the storage battery (3) and is in control connection with the main control chip (6); one end of the elastic piece (112) is arranged on the electromagnet (111), and the elastic piece (112) is long or contracted along the horizontal direction; the baffle (113) is arranged at the other end of the elastic piece (112), and the baffle (113) is magnetically connected with the electromagnet (111).
3. The piezoelectric dust-absorption blackboard eraser according to claim 1, wherein a starting switch (5) is arranged on a housing of the mounting bin (15), and the starting switch (5) is electrically connected in series between the main control chip (6) and the storage battery (3).
4. The piezoelectric dust-absorbing blackboard eraser according to claim 1, wherein the display module (2) is an Amoled liquid crystal panel.
5. The piezoelectric dust-absorbing blackboard eraser according to claim 1, wherein the fan (14) is a negative pressure fan or a turbofan.
6. The piezoelectric dust-absorbing blackboard eraser according to claim 1, characterized in that the accumulator (3) is a lithium ion battery.
7. The piezoelectric dusting blackboard eraser according to claim 1, characterized in that the capacity of the accumulator (3) is 200-400 mah.
8. The piezoelectric dust-absorption blackboard eraser according to claim 1, wherein the main control chip (6) is stc89c 51.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920753933.6U CN210553842U (en) | 2019-05-23 | 2019-05-23 | Piezoelectric dust-absorbing blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920753933.6U CN210553842U (en) | 2019-05-23 | 2019-05-23 | Piezoelectric dust-absorbing blackboard eraser |
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| Publication Number | Publication Date |
|---|---|
| CN210553842U true CN210553842U (en) | 2020-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920753933.6U Expired - Fee Related CN210553842U (en) | 2019-05-23 | 2019-05-23 | Piezoelectric dust-absorbing blackboard eraser |
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| CN (1) | CN210553842U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112046180A (en) * | 2020-10-15 | 2020-12-08 | 淮南师范学院 | Blackboard eraser |
-
2019
- 2019-05-23 CN CN201920753933.6U patent/CN210553842U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112046180A (en) * | 2020-10-15 | 2020-12-08 | 淮南师范学院 | Blackboard eraser |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200519 Termination date: 20210523 |