CN112606598A - Electrostatic dust removal blackboard eraser device suitable for intelligent classroom and control system thereof - Google Patents
Electrostatic dust removal blackboard eraser device suitable for intelligent classroom and control system thereof Download PDFInfo
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- CN112606598A CN112606598A CN202011456693.7A CN202011456693A CN112606598A CN 112606598 A CN112606598 A CN 112606598A CN 202011456693 A CN202011456693 A CN 202011456693A CN 112606598 A CN112606598 A CN 112606598A
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- box body
- rectangular
- plate
- pressure sensor
- blackboard eraser
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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 discloses an electrostatic dust removal blackboard eraser device suitable for a smart classroom and a control system thereof, and relates to the technical field of dust removal blackboard erasers. The invention comprises an outer box body, an inner box body, a rectangular ring plate, a support frame, a wiping plate and a linkage structure; the linkage structure comprises a fixed pulley, a pull rope, a plurality of first springs and a second spring. When the outer box body is pressed to press the wiping plate for wiping, the main controller controls the positive and negative rotation servo motor to rotate in the positive direction, so that the horizontal scraper is attached to the inner side wall of the rectangular ring plate, and the horizontal scraper can scrape dust on the inner side wall of the rectangular ring plate in the process of pressing the outer box body; pressing outer box body and going up the coplanar with the sponge protection ring upper surface until wiping the board upper surface, the servo motor reverse rotation of master controller control just reversing makes horizontal scraper blade be located and wipes the board inboard, removes outer box body and realizes erasing blackboard chalk vestige when keeping pressing, and the powder is in the inboard of rectangle ring board and by the electrostatic absorption on the conducting strip, convenient absorption dust.
Description
Technical Field
The invention belongs to the technical field of dust removal blackboard eraser, and particularly relates to an electrostatic dust removal blackboard eraser device suitable for intelligent classrooms and a control system thereof.
Background
Along with the rapid development of the internet of things technology, intelligent equipment in the teaching field is more convenient and faster for teachers and students to interact in teaching. Various smart devices are popular in smart classrooms, such as: intelligent electronic blackboards, projectors, multimedia consoles, and the like.
Although the current intelligent teaching equipment can greatly improve the teaching efficiency and quality; however, the conventional chalk is inevitably used for writing and displaying. After the chalk is written, a blackboard eraser is needed to be used for wiping; however, a large amount of chalk powder is generated in the wiping process, so that teachers and students adsorb a large amount of chalk powder dust in the teaching process, and the respiratory systems of the teachers and students are seriously affected.
In order to solve the above problems, the present invention provides an electrostatic dust removal blackboard eraser device suitable for a smart classroom and a control system thereof.
Disclosure of Invention
The invention aims to provide an electrostatic dust removal blackboard eraser device suitable for a smart classroom and a control system thereof, which are used for solving the technical problems in the background technology.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to an electrostatic dust removal blackboard eraser device suitable for a smart classroom, which comprises: the device comprises an outer box body, an inner box body, a rectangular ring plate, a support frame, a wiping plate and a linkage structure;
the outer box body and the inner box body are rectangular box bodies with one side surface opened; the inner box body is arranged in the outer box body, and the opening directions of the outer box body and the inner box body are the same; the inner bottom surface of the outer box body is connected with the outer bottom surface of the inner box body through a plurality of connecting columns; a rectangular ring plate is slidably arranged between the outer box body and the inner box body; conductive cloth is uniformly arranged on the inner side surface of the rectangular changing plate; the conductive cloth is electrically connected with the electrostatic generator through a lead; a rectangular limiting ring is fixed at the opening end of the inner box body;
the support frame comprises a rectangular supporting plate and a rectangular supporting ring plate; the rectangular supporting ring plate is arranged on the upper surface of the rectangular supporting plate; the rectangular supporting plate is slidably arranged in the inner box body; the rectangular supporting ring plate is slidably arranged in the rectangular limiting ring; the upper end of the rectangular supporting ring plate is provided with a wiping plate;
the linkage structure comprises a fixed pulley, a pull rope, a plurality of first springs and a plurality of second springs; the fixed pulley is arranged at the center of the lower bottom surface of the rectangular supporting plate; two threading holes which are symmetrical about the fixed pulley are formed in the inner bottom surface of the inner box body; the pull rope is wound on the side surface of the fixed pulley, and two ends of the pull rope respectively penetrate through the threading holes correspondingly and then are connected with the side end of the rectangular annular plate; the four corners of the lower bottom surface of the rectangular supporting plate are connected with the inner bottom surface of the inner box body through first springs; the four corners of the bottom end of the rectangular annular plate are connected with the inner bottom surface of the outer box body through second springs.
As a preferred technical scheme, a limiting sliding groove is formed in the outer side surface of the inner box body along a side edge; the side edges of the inner side of the rectangular annular plate are provided with fixed sliding blocks; the sliding block is arranged in the limiting sliding chute in a sliding matching manner; the outer box body is attached to the outer side face of the rectangular ring plate, and a gap is formed between the inner side face of the rectangular ring plate and the inner box body.
As a preferable technical scheme, the wiping plate is positioned at the inner side of the rectangular ring plate; the clearance between the rectangular ring plate and the wiping plate is larger than or equal to the clearance between the inner side surface of the rectangular ring plate and the inner box body.
As a preferred technical scheme, a vertical rod is arranged on the lower bottom surface of the rectangular supporting plate; and a first pressure sensor is arranged at the bottom of the vertical rod.
As a preferred technical scheme, a sponge protective ring is installed at the upper end of the rectangular ring plate.
As a preferable technical scheme, when the first pressure sensor is pressed to the inner bottom surface of the inner box body, the upper surface of the wiping plate and the upper surface of the sponge protection ring are coplanar; and a second pressure sensor is arranged on the upper surface of the wiping plate.
As a preferable technical scheme, rectangular sliding holes are formed in four side faces of the rectangular supporting ring plate; a horizontal scraper is arranged in the rectangular sliding hole in a sliding manner; a positive and negative rotation servo motor is arranged in the center of the upper surface of the rectangular supporting plate; the output end of the positive and negative rotation servo motor is coaxially provided with a rotating disc; the periphery of the rotating disc is movably connected with the horizontal scraper through a plurality of connecting rods.
As a preferred technical scheme, a main controller is arranged on the inner bottom surface of the inner box body; the main controller is respectively connected with the positive and negative rotation servo motor, the first pressure sensor and the second pressure sensor in an electric signal mode.
As a preferable technical scheme, a switch button is arranged on the outer bottom surface of the outer box body; the switch button is electrically connected with the main controller; and the main controller controls the electrostatic generator to be electrically communicated with the conductive cloth after receiving a switching signal transmitted by the switch button.
The control system of the electrostatic dust removal blackboard eraser device suitable for the intelligent classroom comprises a master controller, a switch button, a positive and negative rotation servo motor, a first pressure sensor and a second pressure sensor; the main controller is respectively connected with a switching signal, a positive and negative rotation servo motor, a first pressure sensor and a second pressure sensor through electric signals;
after the main controller receives a pressure signal detected by the second pressure sensor, the main controller controls the forward and reverse rotation servo motor to rotate forward so that the horizontal scraping plate slides outwards until the horizontal scraping plate is attached to the inner side wall of the rectangular annular plate;
after the main controller receives a pressure signal detected by the first pressure sensor, the main controller controls the forward and reverse rotation servo motor to rotate reversely, so that the horizontal scraper slides inwards until the horizontal scraper is positioned on the inner side of the wiping plate.
One aspect of the present invention has the following advantageous effects:
1. when the outer box body is pressed to press the wiping plate for wiping, the main controller controls the positive and negative rotation servo motor to rotate in the positive direction, so that the horizontal scraper is attached to the inner side wall of the rectangular ring plate, and the horizontal scraper can scrape dust on the inner side wall of the rectangular ring plate in the process of pressing the outer box body; pressing outer box body and going up the coplanar with the sponge protection ring upper surface until wiping the board upper surface, the servo motor reverse rotation of master controller control just reversing makes horizontal scraper blade be located and wipes the board inboard, removes outer box body when keeping pressing and realizes erasing blackboard chalk vestige, and the powder of erasing is at the inboard of rectangle ring board and by the electrostatic absorption on the conducting strip, convenient absorption dust.
2. After the erasing is finished, the outer box body is not pressed any more, the rectangular ring plate is contracted into the inner part of the outer box body under the action of the first spring and the second spring, powder is effectively absorbed when chalk marks are erased, and dust is prevented from being adsorbed by teachers and students to influence physical and mental health.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an electrostatic dust removal blackboard eraser device suitable for a smart classroom according to the present invention;
FIG. 2 is a front view of FIG. 1;
FIG. 3 is a cross-sectional view A-A of FIG. 2;
FIG. 4 is an enlarged view of A in FIG. 3;
FIG. 5 is an enlarged view of B in FIG. 3;
fig. 6 is a schematic structural view of an electrostatic precipitation blackboard eraser device without a wiping plate, which is suitable for a smart classroom according to the present invention;
fig. 7 is a schematic structural view of the electrostatic precipitation blackboard eraser device suitable for a smart classroom, which is not provided with the wiping plate and the supporting frame;
fig. 8 is a schematic structural diagram of a control system of an electrostatic precipitation blackboard eraser device suitable for a smart classroom according to the present invention;
in the drawings, the components represented by the respective reference numerals are listed below:
1-outer box body, 11-connecting column, 2-inner box body, 21-rectangular limiting ring, 22-threading hole, 23-main controller, 3-rectangular ring plate, 31-sliding block, 41-rectangular supporting plate, 411-vertical rod, 412-first pressure sensor, 42-rectangular supporting ring plate, 421-rectangular sliding hole, 422-horizontal scraping plate, 43-positive and negative rotation servo motor, 431-rotating disc, 432-connecting rod, 5-wiping plate, 51-second pressure sensor, 61-fixed pulley, 62-pulling rope, 63-first spring and 64-second spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "open," "upper," "middle," "length," "inner," and the like are used in an orientation or positional relationship for convenience in describing the present invention and for simplicity of description, and do not indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Referring to fig. 1 to 7, the electrostatic precipitator blackboard eraser apparatus for a smart classroom according to the present invention includes: the box comprises an outer box body 1, an inner box body 2, a rectangular ring plate 3, a support frame, a wiping plate 5 and a linkage structure; the outer box body 1 and the inner box body 2 are rectangular box bodies with one side surface opened; the inner box body 2 is arranged in the outer box body 1, and the opening directions of the outer box body 1 and the inner box body 2 are the same; the inner bottom surface of the outer box body 1 is connected with the outer bottom surface of the inner box body 2 through a plurality of connecting columns 11; a rectangular ring plate 3 is arranged between the outer box body 1 and the inner box body 2 in a sliding way; specifically, the outer side surface of the inner box body 2 is provided with a limiting sliding chute along the side edge; the slide block 31 is fixed at the position of the side edge of the inner side of the rectangular annular plate 3; the sliding block 31 is arranged in the limiting sliding chute in a sliding matching manner; the outer side face of the rectangular ring plate 3 is attached to the outer box body 1, a gap is formed between the inner side face of the rectangular ring plate 3 and the inner box body 2, the gap ensures that the conductive cloth adsorbs dust, and meanwhile, when the rectangular ring plate 3 slides into the outer box body 1, the dust is prevented from being scraped out of the outer box body 1; the inner side surfaces of the rectangular changing plates 3 are uniformly provided with conductive cloth; in addition, the upper end of the rectangular ring plate 3 is provided with a sponge protective ring, so that the rectangular ring plate 3 is prevented from scratching the blackboard; the conductive cloth is electrically connected with the electrostatic generator through a lead; a rectangular limiting ring 21 is fixed at the opening end of the inner box body 2;
the support frame comprises a rectangular supporting plate 41 and a rectangular supporting ring plate 42; the rectangular supporting ring plate 42 is arranged on the upper surface of the rectangular supporting plate 41; the rectangular supporting plate 41 is slidably arranged in the inner box body 2; the rectangular supporting ring plate 42 is slidably arranged in the rectangular limiting ring 21; the upper end of the rectangular supporting ring plate 42 is provided with a wiping plate 5; specifically, the wiping plate 5 is positioned on the inner side of the rectangular ring plate 3; the clearance between the rectangular annular plate 3 and the wiping plate 5 is larger than or equal to the clearance between the inner side surface of the rectangular annular plate 3 and the inner box body 2, so that the dust is adsorbed by a reserved space, and the wiping plate 5 is prevented from influencing the up-and-down sliding of the rectangular annular plate 3;
the linkage structure comprises a fixed pulley 61, a pull rope 62, a plurality of first springs 63 and a plurality of second springs 64; the fixed pulley 61 is arranged at the center of the lower bottom surface of the rectangular supporting plate 41; two threading holes 22 which are symmetrical about the fixed pulley 61 are arranged on the inner bottom surface of the inner box body 2; the pulling rope 62 is wound on the side surface of the fixed pulley 61, and two ends of the pulling rope 62 respectively and correspondingly penetrate through the threading holes 22 and then are connected with the side end of the rectangular ring plate 3, actually, the pulling rope 62 is positioned between the side surface of the fixed pulley 61 and the inner bottom surface of the inner box body 2; the four corners of the lower bottom surface of the rectangular supporting plate 41 are connected with the inner bottom surface of the inner box body 2 through first springs 63; the four corners of the bottom of the rectangular ring plate 3 are connected with the inner bottom surface of the outer box 1 through second springs 64.
Specifically, the lower bottom surface of the rectangular supporting plate 41 is provided with a vertical rod 411; a first pressure sensor 412 is arranged at the bottom of the vertical rod 411; when the first pressure sensor 412 is pressed to the inner bottom surface of the inner box body 2, the upper surface of the wiping plate 5 is coplanar with the upper surface of the sponge protection ring; the second pressure sensor 51 is mounted on the upper surface of the wiping plate 5.
In addition, rectangular slide holes 421 are formed on four side surfaces of the rectangular support ring plate 42; a horizontal scraper 422 is slidably mounted in the rectangular sliding hole 421; a positive and negative rotation servo motor 43 is arranged at the center of the upper surface of the rectangular supporting plate 41; the output end of the forward and reverse rotation servo motor 43 is coaxially provided with a rotating disc 431; the circumferential side of the rotating disc 431 is movably connected with the horizontal scraping plate 422 through a plurality of connecting rods 432; the main controller 23 is arranged on the inner bottom surface of the inner box body 2; the main controller 23 is electrically connected with the positive and negative rotation servo motor 43, the first pressure sensor 412 and the second pressure sensor 51 respectively; specifically, a switch button is arranged on the outer bottom surface of the outer box body 1; the switch button is connected with the main controller 23 through an electric signal; the main controller 23 controls the electrostatic generator to be electrically communicated with the conductive cloth after receiving a switching signal transmitted by the switch button.
Referring to fig. 8, the control system of the electrostatic dust removal blackboard eraser device suitable for the intelligent classroom includes a main controller 23, a switch button, a forward and reverse rotation servo motor 43, a first pressure sensor 412 and a second pressure sensor 51; the main controller 23 is respectively connected with the switch button, the positive and negative rotation servo motor 43, the first pressure sensor 412 and the second pressure sensor 51 through electric signals; after the main controller 23 receives the pressure signal detected by the second pressure sensor 51, the main controller 23 controls the forward and reverse rotation servo motor 43 to rotate forward so that the horizontal scraping plate 422 slides outwards until the horizontal scraping plate 422 is attached to the inner side wall of the rectangular annular plate 3; after the main controller 23 receives the pressure signal detected by the first pressure sensor 412, the main controller 23 controls the forward and reverse rotation servo motor 43 to rotate in reverse, so that the horizontal scraper 422 slides inwards until the horizontal scraper 422 is located inside the wiping plate 5.
When the blackboard eraser is used in practice, the wiping plate 5 is attached to the surface of a blackboard for erasing, when the outer box body 1 is pressed and the wiping plate 5 is further pressed for wiping, the second pressure sensor 51 detects a pressure signal and transmits the pressure signal to the main controller 23, the main controller 23 controls the forward and reverse rotation servo motor 43 to rotate forwardly so that the horizontal scraper 422 slides outwards until the horizontal scraper 422 is attached to the inner side wall of the rectangular annular plate 3, and the horizontal scraper 422 scrapes off dust on the inner side wall of the rectangular annular plate 3 in the process of pressing the outer box body 1; along with the pressing of the outer box body 1, when the upper surface of the wiping plate 5 and the upper surface of the sponge protection ring are coplanar, the first pressure sensor 412 is extruded to the inner bottom surface of the inner box body 2 and transmits a pressure signal to the main controller 23, the main controller 23 controls the forward and reverse rotation servo motor 43 to rotate reversely so that the horizontal scraper 422 slides inwards until the horizontal scraper 422 is positioned on the inner side of the wiping plate 5, at the moment, the outer box body 1 is moved while the pressing is kept, so that the blackboard chalk traces are erased, and the erased powder is adsorbed on the inner side of the rectangular ring plate 3 by static electricity on the conducting plate; after erasing the completion, no longer press outer box 1, under the effect of first spring 63 and second spring 64, inside rectangular ring board 3 contracts outer box 1, the absorption of powder when effectual realization erased the chalk vestige avoids the dust to be adsorbed by teachers and students and influences physical and mental health.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (10)
1. An electrostatic dust removal blackboard eraser device suitable for intelligent classroom, its characterized in that includes: the box comprises an outer box body (1), an inner box body (2), a rectangular ring plate (3), a support frame, a wiping plate (5) and a linkage structure;
the outer box body (1) and the inner box body (2) are rectangular box bodies with one side surface opened; the inner box body (2) is arranged in the outer box body (1), and the opening directions of the outer box body (1) and the inner box body (2) are the same; the inner bottom surface of the outer box body (1) is connected with the outer bottom surface of the inner box body (2) through a plurality of connecting columns (11); a rectangular ring plate (3) is arranged between the outer box body (1) and the inner box body (2) in a sliding way; the inner side surfaces of the rectangular changing plates (3) are uniformly provided with conductive cloth; the conductive cloth is electrically connected with the electrostatic generator through a lead; a rectangular limiting ring (21) is fixed at the opening end of the inner box body (2);
the support frame comprises a rectangular supporting plate (41) and a rectangular supporting ring plate (42); the rectangular supporting ring plate (42) is arranged on the upper surface of the rectangular supporting plate (41); the rectangular supporting plate (41) is slidably arranged in the inner box body (2); the rectangular supporting ring plate (42) is slidably arranged in the rectangular limiting ring (21); the upper end of the rectangular supporting ring plate (42) is provided with a wiping plate (5);
the linkage structure comprises a fixed pulley (61), a pull rope (62), a plurality of first springs (63) and a plurality of second springs (64); the fixed pulley (61) is arranged at the center of the lower bottom surface of the rectangular supporting plate (41); two threading holes (22) which are symmetrical about the fixed pulley (61) are formed in the inner bottom surface of the inner box body (2); the pull rope (62) is wound on the side surface of the fixed pulley (61), and two ends of the pull rope (62) respectively penetrate through the threading holes (22) correspondingly and then are connected with the side end of the rectangular ring plate (3); the four corners of the lower bottom surface of the rectangular supporting plate (41) are connected with the inner bottom surface of the inner box body (2) through first springs (63); the four corners of the bottom end of the rectangular ring plate (3) are connected with the inner bottom surface of the outer box body (1) through second springs (64).
2. The electrostatic dust removal blackboard eraser device suitable for a smart classroom according to claim 1, wherein the outer side surface of the inner box body (2) is provided with a limit chute along a side edge; the side edge of the inner side of the rectangular annular plate (3) is provided with a fixed sliding block (31); the sliding block (31) is arranged in the limiting sliding groove in a sliding matching manner; the outer box body (1) is attached to the outer side face of the rectangular ring plate (3), and a gap is formed between the inner side face of the rectangular ring plate (3) and the inner box body (2).
3. The electrostatic precipitator blackboard eraser device suitable for a smart classroom according to claim 2, wherein the wiping plate (5) is located inside the rectangular ring plate (3); the clearance between the rectangular annular plate (3) and the wiping plate (5) is more than or equal to the clearance between the inner side surface of the rectangular annular plate (3) and the inner box body (2).
4. The electrostatic precipitator blackboard eraser apparatus suitable for a smart classroom according to claim 3, wherein the rectangular supporting plate (41) is installed with a vertical rod (411) on the lower bottom surface; and a first pressure sensor (412) is arranged at the bottom of the vertical rod (411).
5. The electrostatic precipitator blackboard eraser apparatus suitable for a smart classroom according to claim 4, wherein the rectangular ring plate (3) is mounted with a sponge guard ring at the upper end.
6. The electrostatic precipitator blackboard eraser device for smart classroom according to claim 5, wherein when the first pressure sensor (412) is pressed to the inner bottom surface of the inner case (2), the upper surface of the wiping plate (5) is coplanar with the upper surface of the sponge guard ring; and a second pressure sensor (51) is arranged on the upper surface of the wiping plate (5).
7. The electrostatic precipitation blackboard eraser device suitable for a smart classroom according to claim 6, wherein the rectangular support ring plate (42) is provided with rectangular sliding holes (421) on four sides; a horizontal scraper (422) is arranged in the rectangular sliding hole (421) in a sliding manner; a positive and negative rotation servo motor (43) is arranged at the center of the upper surface of the rectangular supporting plate (41); the output end of the forward and reverse rotation servo motor (43) is coaxially provided with a rotating disc (431); the peripheral side of the rotating disc (431) is movably connected with the horizontal scraping plate (422) through a plurality of connecting rods (432).
8. The electrostatic precipitator blackboard eraser device suitable for a smart classroom according to claim 7, wherein the inner bottom surface of the inner box body (2) is provided with a master controller (23); the main controller (23) is respectively connected with the positive and negative rotation servo motor (43), the first pressure sensor (412) and the second pressure sensor (51) through electric signals.
9. The electrostatic precipitator blackboard eraser device suitable for a smart classroom according to claim 8, wherein the outer bottom surface of the outer casing (1) is installed with a switch button; the switch button is electrically connected with a main controller (23); and the main controller (23) controls the electrostatic generator to be electrically communicated with the conductive cloth after receiving a switching signal transmitted by the switch button.
10. The control system of the electrostatic dust removal blackboard eraser device suitable for intelligent classrooms is characterized by comprising a main controller (23), a switch button, a positive and negative rotation servo motor (43), a first pressure sensor (412) and a second pressure sensor (51); the main controller (23) is respectively in electric signal connection with a switch button, a positive and negative rotation servo motor (43), a first pressure sensor (412) and a second pressure sensor (51);
after the main controller (23) receives a pressure signal detected by the second pressure sensor (51), the main controller (23) controls the forward and reverse rotation servo motor (43) to rotate forward, so that the horizontal scraper (422) slides outwards until the horizontal scraper (422) is attached to the inner side wall of the rectangular annular plate (3);
after the main controller (23) receives the pressure signal detected by the first pressure sensor (412), the main controller (23) controls the forward and reverse rotation servo motor (43) to rotate reversely, so that the horizontal scraper (422) slides inwards until the horizontal scraper (422) is positioned on the inner side of the wiping plate (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011456693.7A CN112606598A (en) | 2020-12-11 | 2020-12-11 | Electrostatic dust removal blackboard eraser device suitable for intelligent classroom and control system thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011456693.7A CN112606598A (en) | 2020-12-11 | 2020-12-11 | Electrostatic dust removal blackboard eraser device suitable for intelligent classroom and control system thereof |
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| CN112606598A true CN112606598A (en) | 2021-04-06 |
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| CN202011456693.7A Withdrawn CN112606598A (en) | 2020-12-11 | 2020-12-11 | Electrostatic dust removal blackboard eraser device suitable for intelligent classroom and control system thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115616195A (en) * | 2022-11-15 | 2023-01-17 | 成都理工大学 | High-speed landslide starting process mechanism test device |
-
2020
- 2020-12-11 CN CN202011456693.7A patent/CN112606598A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115616195A (en) * | 2022-11-15 | 2023-01-17 | 成都理工大学 | High-speed landslide starting process mechanism test device |
| CN115616195B (en) * | 2022-11-15 | 2023-03-07 | 成都理工大学 | High-speed landslide starting process mechanism test device |
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Application publication date: 20210406 |
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