CN214449864U - Automatic Blackboard Eraser System - Google Patents
Automatic Blackboard Eraser System Download PDFInfo
- Publication number
- CN214449864U CN214449864U CN202023045713.XU CN202023045713U CN214449864U CN 214449864 U CN214449864 U CN 214449864U CN 202023045713 U CN202023045713 U CN 202023045713U CN 214449864 U CN214449864 U CN 214449864U
- Authority
- CN
- China
- Prior art keywords
- blackboard
- assembly
- eraser
- slide rail
- dust
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000000428 dust Substances 0.000 claims abstract description 55
- 230000001680 brushing effect Effects 0.000 claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000007921 spray Substances 0.000 claims abstract description 24
- 238000005507 spraying Methods 0.000 claims abstract description 13
- 238000009736 wetting Methods 0.000 claims abstract 2
- 238000009434 installation Methods 0.000 claims description 4
- 238000007790 scraping Methods 0.000 claims 1
- 238000005192 partition Methods 0.000 description 18
- 238000005096 rolling process Methods 0.000 description 15
- 230000000694 effects Effects 0.000 description 8
- 238000010521 absorption reaction Methods 0.000 description 5
- 230000005389 magnetism Effects 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- QNRATNLHPGXHMA-XZHTYLCXSA-N (r)-(6-ethoxyquinolin-4-yl)-[(2s,4s,5r)-5-ethyl-1-azabicyclo[2.2.2]octan-2-yl]methanol;hydrochloride Chemical compound Cl.C([C@H]([C@H](C1)CC)C2)CN1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OCC)C=C21 QNRATNLHPGXHMA-XZHTYLCXSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- RSMUVYRMZCOLBH-UHFFFAOYSA-N metsulfuron methyl Chemical compound COC(=O)C1=CC=CC=C1S(=O)(=O)NC(=O)NC1=NC(C)=NC(OC)=N1 RSMUVYRMZCOLBH-UHFFFAOYSA-N 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Images
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
本实用新型公开了一种自动黑板擦系统，应用于黑板，包括：刷除装置、导轨装置、驱动装置和控制器，其中，刷除装置包括相连接的板擦组件、用于吸取粉尘的吸尘组件以及用于润湿所述板擦组件的喷水组件；导轨装置至少包括一条滑轨，所述滑轨用于安装在所述黑板的一侧；驱动装置包括相连接的驱动电机、用于驱动所述板擦组件相对所述黑板进行移动的驱动杆和滑块，所述滑块可滑动地安装在所述滑轨上，所述驱动杆一端与所述滑块连接，另一端与所述板擦组件连接；控制器分别与所述驱动电机、所述吸尘组件和所述喷水组件连接。自动黑板擦系统能够自动对黑板进行刷除，节省时间，提高上课效率，减少粉尘污染，便于用户使用。
The utility model discloses an automatic blackboard erasing system, which is applied to a blackboard and comprises a brushing device, a guide rail device, a driving device and a controller. an assembly and a water spray assembly for wetting the plate erase assembly; the guide rail device includes at least one slide rail, and the slide rail is used to be installed on one side of the blackboard; the drive device includes a connected drive motor for driving A drive rod and a slider for the board eraser assembly to move relative to the blackboard, the slider is slidably mounted on the slide rail, one end of the drive rod is connected with the slider, and the other end is connected with the board eraser The components are connected; the controller is respectively connected with the driving motor, the dust collecting component and the water spraying component. The automatic blackboard erasing system can automatically clean the blackboard, save time, improve class efficiency, reduce dust pollution, and facilitate users to use.
Description
Technical Field
The embodiment of the utility model provides a but not limited to blackboard cleaning technical field especially relates to an automatic blackboard eraser system.
Background
Blackboards are devices that are commonly used by teachers and students, and are increasingly sized to display more content. However, the writing area of the blackboard is limited, the blackboard needs to be erased completely after being used, and the longer the time spent for erasing the blackboard with larger size is, the larger the area of the blackboard is erased, the serious dust pollution is brought, and the use is very inconvenient.
SUMMERY OF THE UTILITY MODEL
The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the embodiment of the utility model provides an automatic blackboard eraser system can erase the blackboard automatically, saves time, and the user of being convenient for uses.
The utility model discloses automatic blackboard eraser system is applied to the blackboard, include: the device comprises a brushing device, a guide rail device, a driving device and a controller, wherein the brushing device comprises an eraser assembly, a dust collection assembly and a water spray assembly, the eraser assembly, the dust collection assembly and the water spray assembly are connected with each other, and the dust collection assembly is used for sucking dust; the guide rail device at least comprises a slide rail, and the slide rail is used for being arranged on one side of the blackboard; the driving device comprises a driving motor, a driving rod and a sliding block which are connected, wherein the driving rod is used for driving the eraser assembly to move relative to the blackboard; the controller is respectively connected with the driving motor, the dust collection assembly and the water spraying assembly.
According to the utility model discloses automatic blackboard eraser system has following beneficial effect at least: the blackboard eraser assembly is installed on the sliding block through the driving rod, and the sliding block slides relative to the sliding rail under the driving of the driving motor, so that the blackboard eraser assembly is driven to move relative to a blackboard, chalk characters on the blackboard can be automatically erased, the time is saved, and the class efficiency is improved. Under the controller of the controller, the water spraying assembly sprays water to the blackboard eraser assembly to wet, the brushing effect of the blackboard eraser assembly is improved, the blackboard is cleaned, and the cleaning degree of the blackboard is improved. In addition, in the brushing process of the blackboard eraser assembly, the dust absorption assembly absorbs brushed dust, the dust content in the air is reduced, the dust pollution is reduced, and therefore the brushing effect of the automatic blackboard eraser system is improved. Therefore, the automatic blackboard eraser system automatically brushes the blackboard through the mutual matching of the brushing device, the driving device, the guide rail device and the controller, so that the time is saved, the class efficiency is improved, the brushing effect on the blackboard is improved, the dust pollution is reduced, and the use by a user is convenient.
According to some embodiments of the utility model, still including being used for acquireing the position sensor of the positional information of blackboard eraser subassembly, position sensor respectively with the controller with the brushing device is connected, according to the positional information of blackboard eraser subassembly, drives the blackboard eraser subassembly and removes and drive dust absorption subassembly and water spray subassembly synchronous working.
According to the utility model discloses a some embodiments, the subassembly that sprays water is including the shower nozzle that is used for spraying water, the shower nozzle is installed on the blackboard eraser subassembly and/or be used for installing the outside edge of blackboard, the subassembly that sprays water can moisten the blackboard eraser subassembly or moisten the blackboard, improves and brushes except that the effect.
According to the utility model discloses a some embodiments, the scrubbing subassembly includes round brush, pivot and dirt proof boot, the round brush passes through the pivot is installed in the dirt proof boot, improve the brush and remove the effect, reduce dust pollution.
According to some embodiments of the utility model, be provided with in the dirt proof boot and be used for striking off the brush of the last dust of round brush realizes that the blackboard eraser subassembly is self-cleaning, improves the brushing effect.
According to some embodiments of the utility model, still including being used for adjusting the brushing device is relative the adjusting device of the position of blackboard, adjusting device with the controller is connected, and the user of being convenient for uses the regulation.
According to some embodiments of the utility model, the setting of blackboard eraser subassembly is used for the split to use the structure is inhaled to the magnetism of blackboard eraser subassembly, magnetism inhale the structure with the connection is inhaled to the actuating lever magnetism, and the user's split independent use blackboard eraser subassembly of being convenient for.
According to some embodiments of the utility model, the actuating lever is used for setting up blackboard rear, the blackboard eraser subassembly is used for setting up blackboard the place ahead reduces automatic blackboard eraser system occupation space, and convenient to use user uses.
According to the utility model discloses a some embodiments, the guide rail device includes first slide rail and second slide rail, first slide rail with the second slide rail is installed respectively the corresponding both sides of blackboard improve the flexibility and the stability of blackboard eraser subassembly.
According to the utility model discloses a some embodiments, all the slide rail all includes the multistage branch slide rail, realizes the segmentation brushing-off, and the user of being convenient for uses.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings are included to provide a further understanding of the technical solutions of the present invention, and are incorporated in and constitute a part of this specification, together with the embodiments of the present invention for explaining the technical solutions of the present invention, and do not constitute a limitation on the technical solutions of the present invention.
Fig. 1 is a schematic structural view of an automatic blackboard eraser system according to some embodiments of the present invention;
fig. 2 is a schematic structural view of an automatic blackboard eraser system according to other embodiments of the present invention;
fig. 3 is a schematic sectional view taken along line a-a in fig. 1.
Description of the drawings: the automatic blackboard eraser system 100, the brushing device 110, the blackboard eraser assembly 120, the rolling brush 121, the rotating shaft 122, the dustproof sleeve 123, the brush 124, the dust suction assembly 130, the water spray assembly 140, the spray head 141, the slide rail 150, the driving motor 160, the driving rod 161, the slider 162 and the screw rod 170.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
The utility model provides an automatic blackboard eraser system, including the brushing device, the guide rail device, drive arrangement and controller, under the control of controller, drive arrangement's driving motor drive slider removes along the slide rail, actuating lever one end and sliding linkage, the other end is connected with the blackboard eraser subassembly, consequently actuating lever and slider synchronous motion drive the blackboard eraser subassembly and remove for the blackboard, and still include water spray assembly and dust absorption subassembly among the brushing device, the water spray assembly sprays water to the blackboard eraser subassembly, moist blackboard eraser subassembly, the dust absorption subassembly is absorbed the dust that is brushed away, thereby realize automatically erasing the blackboard, improve and erase the effect, reduce the dust content in the air, reduce dust pollution, time saving, convenient to use user uses.
The embodiments of the present invention will be further explained with reference to the drawings.
It can be understood that fig. 1 is a schematic structural diagram of the automatic blackboard eraser system 100 according to an embodiment of the present invention, which is installed on a blackboard. In the example of fig. 1, the shape of the blackboard is set to be rectangular, the frames corresponding to the two sides are both arranged in parallel, and the two adjacent frames are both arranged vertically. The shape of the blackboard can be round, triangular, rhombic or pentagonal. The blackboard can be provided with a bracket and is fixed on a horizontal plane through the bracket; the blackboard can also be provided with a hanging rack and fixed on the wall through the hanging rack.
The embodiment of the utility model provides a blackboard and application scene of description are for clearer explanation the utility model discloses the technical scheme of embodiment does not constitute to the utility model discloses the technical scheme's that the embodiment provides injects, and technical staff in the field can know, along with the evolution of blackboard and the appearance of new application scene, the utility model provides a technical scheme is applicable equally to similar technical problem.
It will be appreciated by those skilled in the art that the configuration of the blackboard shown in figure 1 does not constitute a limitation on embodiments of the invention, and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
Based on the structure of the blackboard, the present invention provides various embodiments of the automatic blackboard eraser system 100.
Referring to fig. 1, it can be understood that the slide rail 150 of the automatic blackboard eraser system 100 is installed at the upper side of the blackboard, and the slide rail 150 may be installed at the lower side of the blackboard, and may be installed at the left side or the right side. The sliding rail 150 is provided with a sliding block 162, one end of a driving rod 161 is connected with the sliding block 162, the other end of the driving rod 161 is connected with the blackboard eraser assembly 120 of the brushing device 110, under the control of a controller and the driving of a driving motor 160, the sliding block 162 can slide relative to the sliding rail 150, the sliding block 162 drives the driving rod 161 to move, and the blackboard eraser assembly 120 installed on the driving rod 161 moves synchronously, so that the blackboard eraser assembly 120 moves relative to a blackboard, chalk characters on the blackboard are brushed off through the blackboard eraser assembly 120, the purpose of automatically brushing off the blackboard is achieved, the time of a user is saved, and the class attendance efficiency is improved. The dust collection assembly 130 of the brushing device 110 is connected with the eraser assembly 120, and the dust collection assembly 130 and the eraser assembly 120 move synchronously, so that the dust collection assembly 130 absorbs dust brushed by the eraser assembly 120, the dust content in the air is reduced, dust pollution is reduced, and the phenomenon that the brushed dust is adhered to the blackboard again to influence the brushing effect of the blackboard is avoided. The brushing device 110 further comprises a water spraying assembly 140, the water spraying assembly 140 is connected with the blackboard eraser assembly 120 and can spray water to the blackboard eraser assembly 120, so that the blackboard eraser assembly 120 is wetted, the blackboard is cleaned by the blackboard eraser assembly 120 in the process of erasing the blackboard, the dust adsorption performance of the blackboard eraser assembly 120 is improved, and the brushing effect of the brushing device 110 on the blackboard is improved. Therefore, under the control of the controller, the driving motor 160 drives the slider 162 to move, the slider 162 drives the blackboard eraser assembly 120 to move relative to the blackboard through the driving rod 161, the dust absorption assembly 130 absorbs the erased dust, the water spraying assembly 140 wets the blackboard eraser assembly 120, the automatic erasing of the blackboard can be realized, the erasing effect of the automatic blackboard eraser system 100 can be improved, the dust content in the air is reduced, the dust pollution is reduced, the erasing time is saved, the class attendance efficiency is improved, and the use by a user is facilitated.
It should be noted that the driving rod 161 is retractable, and the eraser assembly 120 is rotatably connected to the driving rod 161, and the eraser assembly 120 can rotate relative to the driving rod 161, so that the automatic blackboard eraser system 100 can adjust the relative position and the relative angle between the eraser assembly 120 and the blackboard through the driving rod 161 and the slider 162, so that the eraser assembly 120 can be attached to the blackboard, the erasing effect of the automatic blackboard eraser system 100 is improved, the erasing efficiency is improved, the time is saved, and the use by a user is facilitated.
It can be understood that the guide rail device may be provided with a plurality of slide rails 150, and may be provided with a first slide rail for being installed at an upper side of the blackboard and a second slide rail for being installed at a lower side of the blackboard and corresponding to the first slide rail. The first slide rail is provided with a first slide block which can move relative to the first slide rail, the second slide rail is provided with a second slide block which can move relative to the second slide rail, the first slide block and the second slide block are correspondingly and fixedly connected with a driving rod 161 and eraser components 120, and each eraser component 120 realizes independent driving brushing through the corresponding slide block 162, so that different areas of a blackboard can be brushed simultaneously, the working efficiency is improved, the time is saved, and the use by a user is facilitated.
It is worth noting that the first slide rail can be used for being installed on the left side of the blackboard, and the second slide rail can be used for being installed on the right side of the blackboard and corresponding to the first slide rail; the first slide rail may also be configured to be installed on the upper side of the blackboard, the second slide rail may also be configured to be installed on the left side of the blackboard, the installation positions of the first slide rail and the second slide rail may be variable, in addition, the guide rail device may further be provided with a first slide rail, a second slide rail, a third slide rail and a fourth slide rail, or even more slide rails 150, which is not specifically limited in this embodiment.
It can be understood that the slide rail 150 of the rail device may also be composed of a plurality of sub-slide rails, so as to correspondingly divide a plurality of partitions on the blackboard, for example, the slide rail 150 of the rail device is composed of two sub-slide rails, and correspondingly divides the blackboard into a first partition and a second partition, and the controller controls the driving motor 160 to drive the slider 162 to move on each sub-slide rail by a preset distance, so that the eraser assembly 120 on the slider 162 moves to the corresponding partition on the blackboard, and erases the chalk characters of the corresponding partition, thereby implementing partition erasing of the automatic blackboard eraser system 100, and facilitating the use of the user.
It can be understood that the automatic blackboard eraser system 100 is further provided with a position sensor, the position sensor can acquire the position information of the blackboard eraser assembly 120 on the blackboard, and according to the position information from the position sensor, the controller controls the driving motor 160 to drive the slider 162 to move on the slide rail 150 and controls the driving rod 161 to stretch and retract, so as to drive the blackboard eraser assembly 120 to move to the corresponding position on the blackboard for erasing, thereby improving the accuracy and erasing effect of the automatic blackboard eraser system 100 in the subarea, and facilitating the use of the user.
Referring to fig. 2, it can be understood that the guide rail device is further provided with a screw rod 170 for adjusting the elevation of the slide rail 150, and a fixing frame for supporting the screw rod 170 and the slide rail 150, the slide rail 150 may be adapted to be installed at an upper side of the blackboard, and the fixing frame may be adapted to be installed at a lower side of the blackboard, that is, corresponding to the slide rail 150. Lead screw 170 one end is connected with slide rail 150, and the other end is connected with the mount, and can be used for installing in the left side of blackboard, rotate lead screw 170 through driving motor 160, adjust slide rail 150 and go up and down for the blackboard, thereby can adjust the relative position of blackboard eraser subassembly 120 on the blackboard, help blackboard eraser subassembly 120 to brush the chalk word on the blackboard, improve the effect and the efficiency of brushing the blackboard of automatic blackboard eraser system 100, save time, improve user's use and experience.
It is understood that the automatic blackboard eraser system 100 is further provided with an adjusting device for adjusting the relative position between the eraser assembly 120 and the blackboard, and the adjusting device is connected with the controller, so that the controller controls the driving motor 160 to drive the slider 162 to move, and the relative position between the eraser assembly 120 and the blackboard is adjusted to erase the blackboard. The automatic blackboard eraser system 100 can divide a blackboard into a plurality of partitions, such as a first partition, a second partition, a third partition and a fourth partition, the adjusting device is provided with corresponding partition erasing keys, different partition erasing keys are triggered, the controller controls the blackboard eraser assembly 120 to move to the corresponding partition on the blackboard for erasing, for example, the first partition erasing key is triggered, and the controller controls the blackboard eraser assembly 120 to move to the corresponding first partition on the blackboard and erase chalk characters of the first partition, so that one-key partition erasing is realized. The automatic blackboard eraser system 100 can also erase all the subareas, namely, all the blackboards are erased, and the adjusting device is provided with a control key for controlling the overall erasing of the automatic blackboard eraser system 100, so that the adjusting device can realize the switching between one-key overall erasing and subarea erasing, is simple in operation and convenient for users to use.
It will be appreciated that the water spray assembly 140 is provided with a spray head 141, and that the spray head 141 may be adapted to be mounted at the outer edge of the blackboard. The position information of the blackboard eraser assembly 120 on the blackboard is acquired according to the position sensor, the nozzle 141 sprays water to the position of the blackboard eraser assembly 120, the blackboard eraser assembly 120 and the blackboard within the preset range of the blackboard eraser assembly 120 are wetted, the blackboard eraser assembly 120 is wetted and the blackboard is cleaned by spraying water in the blackboard erasing process, and the erasing effect of the automatic blackboard eraser system 100 is improved. The water spraying assembly 140 can work synchronously with the eraser assembly 120 under the control of the controller, so that automatic water spraying is realized, brushing time is saved, working efficiency is improved, and the use by a user is facilitated.
With reference to fig. 3, it can be understood that the eraser assembly 120 is provided with a rolling brush 121, a rotating shaft 122 and a dustproof sleeve 123, the rolling brush 121 is installed in the dustproof sleeve 123 through the rotating shaft 122, the rolling brush 121 can rotate relative to the dustproof sleeve 123, the rolling brush 121 can be attached to a blackboard for brushing, the brushing effect is improved, the dustproof sleeve 123 can reduce dust in the external environment to approach the rolling brush 121 and adhere to the surface of the rolling brush 121, and the brushing effect of the rolling brush 121 is reduced. The dust-proof cover 123 can collect dust brushed off from the blackboard by the roller brush 121, reduce the dust content in the air and reduce dust pollution.
It can be understood that the blackboard eraser assembly 120 is connected with the dust collection assembly 130, the dust collection assembly 130 is installed in the dust-proof sleeve 123, and the dust collection assembly 130 can collect the dust brushed by the blackboard eraser assembly 120, so as to reduce the dust content in the air, thereby reducing the dust adhesion to the surface of the rolling brush 121, improving the brushing effect and reducing the dust pollution. The dust collection assembly 130 and the blackboard eraser assembly 120 work synchronously, so that dust is automatically sucked in the brushing process, the working efficiency is improved, and the use by a user is facilitated.
It is worth noting that the water spraying assembly 140 can be further connected with the eraser assembly 120, the spray head 141 is arranged in the dustproof sleeve 123, and the spray head 141 can spray water on the surface of the rolling brush 121 to wet the surface of the rolling brush 121, so that the brushing effect is improved, and the use by a user is facilitated.
It can be understood that the brush 124 is further disposed in the dust-proof sleeve 123, and the brush 124 can brush off dust adhered to the surface of the rolling brush 121, so that the self-cleaning function of the rolling brush 121 is realized, the rolling brush 121 is kept clean, and the brushing effect of the rolling brush 121 is improved.
It can be understood that brushing-off device 110 is provided with magnetism and inhales the structure, and magnetism is inhaled the structure and can be realized magnetic force with the magnetic material of actuating lever 161 and adsorb and be connected to fixed brushing-off device 110 is on actuating lever 161, and brushing-off device 110 realizes dismantling with actuating lever 161 and be connected, and the user's split brushing-off device 110 of being convenient for, independent utility satisfies user's user demand, improves user's use and experiences.
It can be understood that the brushing device 110 is connected with the driving rod 161 in a magnetic attraction manner through a magnetic attraction structure, the driving rod 161 is used for being installed behind the blackboard, and the brushing device 110 is used for being installed in front of the blackboard, so that the driving rod 161 does not shield the blackboard, the area of the blackboard occupied by the automatic blackboard eraser system 100 is reduced, the writing area of the blackboard is improved, and the use by a user is facilitated.
While the present invention has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023045713.XU CN214449864U (en) | 2020-12-16 | 2020-12-16 | Automatic Blackboard Eraser System |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023045713.XU CN214449864U (en) | 2020-12-16 | 2020-12-16 | Automatic Blackboard Eraser System |
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| Publication Number | Publication Date |
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| CN214449864U true CN214449864U (en) | 2021-10-22 |
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| CN202023045713.XU Expired - Fee Related CN214449864U (en) | 2020-12-16 | 2020-12-16 | Automatic Blackboard Eraser System |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115447309A (en) * | 2022-08-12 | 2022-12-09 | 江苏小牛电子科技有限公司 | A blackboard automatic cleaning device and its installation and use method |
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2020
- 2020-12-16 CN CN202023045713.XU patent/CN214449864U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115447309A (en) * | 2022-08-12 | 2022-12-09 | 江苏小牛电子科技有限公司 | A blackboard automatic cleaning device and its installation and use method |
| CN115447309B (en) * | 2022-08-12 | 2024-06-04 | 江苏小牛电子科技有限公司 | Automatic blackboard cleaning device and installation and use method thereof |
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Granted publication date: 20211022 |