CN114327159A - Erasing device and display system - Google Patents
Erasing device and display system Download PDFInfo
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- CN114327159A CN114327159A CN202011076848.4A CN202011076848A CN114327159A CN 114327159 A CN114327159 A CN 114327159A CN 202011076848 A CN202011076848 A CN 202011076848A CN 114327159 A CN114327159 A CN 114327159A
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Abstract
The invention discloses an erasing device and a display system, wherein the erasing device comprises: a housing forming an accommodating space accommodating a conductive medium; an opening is formed in the shell; the movable assembly is positioned at the opening and is movably connected with the shell; wherein the side of the movable component facing the shell is soaked with the conductive medium; the movable component can move towards the side of the shell to the side, away from the shell, of the movable component. When the movable assembly soaked with the conductive medium is contacted with the capacitive screen, the conductive medium is conductive, so that the capacitive screen can be touched, and the capacitive screen can be erased.
Description
Technical Field
The present invention relates to the field of erasing technologies, and in particular, to an erasing apparatus and a display system.
Background
In the prior art, with the increasing interaction demand of teaching classes, the touch screen replaces the traditional blackboard to enter the class, and more efficient teaching is realized. The touch screen generally adopts a capacitive screen, and the touch principle of the capacitive screen is that a coupling capacitor is formed on the surface of the capacitive screen through a conductor, current is absorbed from the surface of the screen, and the position of a contact is calculated through the proportion of the current flowing out from four corner electrodes. Chalk characters written on a traditional blackboard can be erased through a blackboard eraser. In the prior art, the content written by the capacitive screen is inconvenient to erase.
Accordingly, the prior art is yet to be improved and developed.
Disclosure of Invention
The present invention provides an erasing device and a display system, aiming at solving the above-mentioned drawbacks of the prior art, and aims to solve the problem that the content written by the capacitive screen is inconvenient to erase.
The technical scheme adopted by the invention for solving the technical problem is as follows:
an erasing apparatus, wherein the erasing apparatus comprises:
a housing forming an accommodating space accommodating a conductive medium; an opening is formed in the shell;
the movable assembly is positioned at the opening and is movably connected with the shell;
wherein the side of the movable component facing the shell is soaked with the conductive medium; the movable component can move towards the side of the shell to the side, away from the shell, of the movable component.
The erasing device, wherein the housing includes:
a trough body;
the cover body is connected with the groove body, and the opening is formed in the cover body.
The erasing device of the present invention, wherein,
a sealing ring is arranged between the groove body and the cover body; and/or
The bottom of the tank body is provided with an inlet;
the inlet is provided with a door body, and the door body can open or close the inlet.
The erasing device of the present invention, wherein,
the cover body is positioned in the groove body;
the movable assembly includes:
the rotating piece is rotatably connected with the groove body;
and the infiltration piece is wrapped outside the rotating shaft.
The erasing apparatus of, wherein the rotating member includes:
the first base plate, the rotating shaft assembly and the second base plate are connected in sequence;
wherein the first substrate and the second substrate are both disposed on the cover;
a first through hole is formed in the first substrate;
a second through hole is formed in the second substrate;
the pivot subassembly includes:
a rotating shaft body;
the first rotating shaft head is arranged at the first end of the rotating shaft body, penetrates through the first through hole and rotates in the first through hole;
the second rotating shaft head is arranged at the second end of the rotating shaft body, penetrates through the second through hole and rotates in the second through hole.
The erasing device of the present invention, wherein,
a first notch is formed in the first end of the rotating shaft body;
the first substrate is provided with a limiting piece, and the limiting piece extends to the first notch to limit the rotation of the rotating shaft body;
the rotating member further includes:
a first elastic member; two ends of the first elastic piece are respectively connected with the first substrate and the first end of the rotating shaft body;
a second elastic member; two ends of the second elastic piece are respectively connected with the second substrate and the second end of the rotating shaft body;
the rotating shaft body moves along the direction far away from the first substrate, so that the limiting piece is positioned outside the first gap.
The erasing device of the present invention, wherein,
the groove body towards one side of second base plate is provided with the second and keeps away the position groove, the first of second pivot can insert the second keeps away the position groove.
The erasing device, wherein the erasing device further comprises:
a button;
a second notch is formed in one side, facing the first base plate, of the groove body, and the first spindle head penetrates through the second notch to extend out of the groove body and is connected with the button;
a first avoiding groove is formed in one side, facing the first substrate, of the groove body;
the pivot body includes:
the first rotating shaft head of the first rotating shaft body is connected with the button;
and the first rotating shaft head of the second rotating shaft body can be inserted into the first avoiding groove.
The erasing device, wherein, the pivot body still includes:
the third substrate is provided with a third through hole, a fourth through hole and a fifth through hole;
the fourth substrate is provided with a sixth through hole and a seventh through hole;
the first spindle head of the first spindle body penetrates through the third through hole and rotates in the third through hole;
the first rotating shaft head of the second rotating shaft body penetrates through the fourth through hole and rotates in the fourth through hole;
the limiting piece penetrates through the fifth through hole;
the second rotating shaft head of the first rotating shaft body penetrates through the sixth through hole and rotates in the sixth through hole;
and the second rotating shaft head of the second rotating shaft body penetrates through the seventh through hole and rotates in the seventh through hole.
The erasing device of the present invention, wherein,
the conductive medium includes: water or brine.
A display system, wherein the display system comprises:
an erasing device as claimed in any one of the above;
capacitive screen.
Has the advantages that: when the movable assembly soaked with the conductive medium is contacted with the capacitive screen, the conductive medium is conductive, so that the capacitive screen can be touched, and the capacitive screen can be erased.
Drawings
FIG. 1 is a schematic diagram of an erasing apparatus according to the present invention.
Figure 2 is an exploded view of the erasing apparatus of the present invention.
FIG. 3 is a first cross-sectional view of an erasing apparatus in the present invention.
Figure 4 is a second cross-sectional view of the erasing means in the present invention.
Figure 5 is a third cross-sectional view of the erasing means in the present invention.
FIG. 6 is a schematic structural view of the trough body and the rotating shaft body in the present invention.
Fig. 7 is a schematic view of the structure of the present invention in a state where the button is pressed.
FIG. 8 is a schematic diagram of the button recovery state according to the present invention.
Fig. 9 is a schematic structural diagram of a limiting member according to the present invention.
Fig. 10 is a schematic structural view of the rotary shaft assembly of the present invention.
FIG. 11 is a schematic view of the structure of the tank of the present invention.
Fig. 12 is a schematic structural view of the cover in the present invention.
FIG. 13 is a schematic view of the cover, the shaft assembly and the infiltrating piece of the present invention.
Description of the drawings: 1. a housing; 10. an accommodating space; 11. a trough body; 111. an inlet; 112. a door body; 113. a second notch; 114. a second avoiding groove; 12. a cover body; 13. a seal ring; 2. a movable component; 21. a rotating member; 211. a first substrate; 2111. a first through hole; 2112. a limiting member; 212. a rotating shaft assembly; 2121. a rotating shaft body; 2122. a first spindle head; 2123. a second spindle head; 2124. a first notch; 212a, a first rotor body; 212b, a second rotating shaft body; 212c, a third substrate; 212c1, third via; 212c2, fourth via; 212c3, fifth via; 212d, a fourth substrate; 212d1, sixth via; 212d2, seventh via; 213. a second substrate; 2131. a second through hole; 214. a first elastic member; 215. a second elastic member; 22. infiltrating; 23. a button; 3. a conductive medium.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1-13, some preferred embodiments of an erasing apparatus are provided.
As shown in fig. 1 to 5, the erasing apparatus includes:
a housing 1, the housing 1 forming an accommodating space 10 accommodating a conductive medium 3; an opening is formed in the shell 1;
the movable component 2 is positioned at the opening, and the movable component 2 is movably connected with the shell 1;
wherein the side of the movable assembly 2 facing the housing 1 is soaked with the conductive medium 3; the movable component 2 can move towards the side of the shell 1 to the side of the movable component 2 departing from the shell 1.
When the movable assembly 2 soaked with the conductive medium 3 is contacted with the capacitive screen, the conductive medium 3 is conductive, so that the capacitive screen can be touched, and the capacitive screen can be erased.
It should be noted that, when writing content on the capacitive screen, a pen or a finger is used for touch control, so that the contact area is small. In the application, the contact area of the movable assembly 2 is larger during touch control, so that the touch control capacitive screen can be distinguished by the size of the contact area, and whether the touch control capacitive screen is used for writing or erasing. Writing is performed when the contact area is small, and erasing is performed when the contact area is large.
In addition, the movable assembly 2 can also erase the contents written by chalk, namely, the erasing device can be compatible with a traditional blackboard and a traditional capacitive screen written by chalk.
In a preferred embodiment of the present invention, the conductive medium 3 includes: water or brine.
Specifically, water has conductivity and thus can be used as the conductive medium 3, and since salt substances can increase the conductivity of water, brine can be used as the conductive medium 3. Of course, other conductive media 3, such as conductive organic solutions, may also be used.
In a preferred embodiment of the present invention, referring to fig. 3-4 and 12, the housing 1 includes:
a tank body 11;
the cover body 12 is connected with the groove body 11, and the opening is formed in the cover body 12.
Specifically, the groove 11 and the cover 12 form an accommodating space 10 for accommodating the conductive medium 3, an opening is provided on the cover 12, and the movable assembly 2 can contact the conductive medium 3 in the accommodating space 10 from the opening, so that the conductive medium 3 infiltrates the movable assembly 2.
Specifically, the slot 11 and the cover 12 may be integrally formed, or may be connected to each other, for example, the slot 11 and the cover 12 are connected in a snap-fit manner. For example, a clamping protrusion is arranged on the tank body 11, a clamping groove is arranged on the cover body 12, and the tank body 11 and the cover body 12 are connected by matching the clamping protrusion and the clamping groove.
In a preferred embodiment of the present invention, referring to fig. 2-4, when the tank 11 and the cover 12 are not integrally formed, a sealing ring 13 is disposed between the tank 11 and the cover 12 to improve the sealing performance between the tank 11 and the cover 12.
Specifically, set up the mounting groove in the side of lid 12, sealing washer 13 is installed in the mounting groove, and sealing washer 13 respectively with the internal surface of mounting groove and cell body 11 in close contact with, realizes sealedly, places conducting medium 3 in the accommodation space 10 and reveals.
In a preferred embodiment of the present invention, referring to fig. 3, 5-6, in order to facilitate the injection and discharge of the conductive medium 3, an inlet 111 is disposed at the bottom of the tank 11; a door body 112 is arranged at the inlet 111, and the door body 112 can open or close the inlet 111.
Specifically, when it is necessary to inject the conductive medium 3 into the accommodating space 10, the entrance 111 may be opened by the door 112, the conductive medium 3 may be injected from the entrance 111, and then the entrance 111 may be closed by the door 112, preventing leakage of the conductive medium 3. When the conductive medium 3 in the accommodating space 10 needs to be discharged, the entrance 111 can be opened by the door 112, and the conductive medium 3 in the accommodating space 10 can be poured out from the entrance 111.
In a preferred embodiment of the present invention, referring to fig. 2-6, the cover 12 is located in the tank 11;
the movable assembly 2 comprises:
the rotating piece 21 is rotatably connected with the shell 1;
and the infiltration piece 22 is wrapped outside the rotating shaft, and the infiltration piece 22 is wrapped outside the rotating shaft.
Specifically, the wetting member 22 is rotated, and the wetting member 22 refers to a device capable of wetting the conductive medium 3, for example, the wetting member 22 may be made of felt, sponge, or other materials. The rotating member 21 can rotate to drive the wetting member 22 to rotate, so that after the wetting member 22 is wetted with the conductive medium 3, the side face of the wetting member 22 wetted with the conductive medium 3 can be rotated out of the accommodating space 10 by the rotation of the rotating member 21, and the conductive medium 3 on the wetting member 22 can be erased.
Specifically, the rotating member 21 is rotatably connected to the housing 1, that is, the rotating member 21 is rotatably connected to the tank body 11 or the lid body 12.
In a preferred embodiment of the present invention, referring to fig. 6-10, the rotating member 21 includes:
a first base plate 211, a rotating shaft assembly 212 and a second base plate 213 which are connected in sequence;
wherein the first substrate 211 and the second substrate 213 are both disposed on the cover 12; of course, the first base plate 211 and the second base plate 213 may be disposed on the tank body 11, that is, the first base plate 211 and the second base plate 213 may be selectively connected to one of the tank body 11 and the cover body 12.
A first through hole 2111 is formed in the first substrate 211;
the second substrate 213 is provided with a second through hole 2131;
the spindle assembly 212 includes:
a shaft body 2121;
a first spindle head 2122, wherein the first spindle head 2122 is disposed at a first end of the spindle body 2121, and the first spindle head 2122 penetrates the first through hole 2111 and rotates in the first through hole 2111;
the second rotating shaft head 2123 is disposed at the second end of the rotating shaft body 2121, and the second rotating shaft head 2123 penetrates through the second through hole 2131 and rotates in the second through hole 2131.
Specifically, the shaft body 2121 is rotatably connected to the first base plate 211 via a first shaft head 2122, and the shaft body 2121 is rotatably connected to the second base plate 213 via a second shaft head 2123.
It should be noted that the diameter of the first spindle head 2122 and the diameter of the second spindle head 2123 are both smaller than the diameter of the spindle body 2121, and the central axis of the first spindle head 2122, the central axis of the spindle body 2121, and the central axis of the second spindle head 2123 are all collinear.
In a preferred embodiment of the present invention, referring to fig. 7-10, a first notch 2124 is formed at a first end of the rotating shaft body 2121;
a limiting part 2112 is arranged on the first substrate 211, and the limiting part 2112 extends to the first notch 2124 to limit the rotation of the rotating shaft body 2121;
the rotating member 21 further includes:
a first elastic member 214; two ends of the first elastic element 214 are respectively connected to the first substrate 211 and a first end of the rotating shaft body 2121;
the second elastic member 215; two ends of the second elastic element 215 are respectively connected to the second substrate 213 and the second end of the rotating shaft body 2121;
the rotating shaft body 2121 moves in a direction away from the first substrate 211, so that the limiting element 2112 is located outside the first notch 2124.
Specifically, whether the rotating shaft body 2121 can rotate can be determined by adjusting the position relationship between the limiting element 2112 and the first notch 2124, and if the limiting element 2112 is located at the first notch 2124, the rotating shaft body 2121 is limited by the limiting element 2112 during the rotation process, and cannot rotate continuously. If the limiting element 2112 is located outside the first notch 2124, the rotating shaft body 2121 is not limited by the limiting element 2112 during the rotation process, and can rotate freely. If the rotation shaft body 2121 needs to be rotated, the rotation shaft body 2121 can be moved away from the first substrate 211, so that the first elastic element 214 is stretched and the second elastic element 215 is compressed, thereby achieving the free rotation of the rotation shaft body 2121. If the rotation shaft body 2121 does not need to be rotated, the rotation shaft body 2121 is moved toward the first base plate 211 by the pulling force of the first elastic element 214 and the pushing force of the second elastic element 215, the first elastic element 214 and the second elastic element 215 are deformed again, and the limiting element 2112 is inserted into the first notch 2124 to limit the rotation of the rotation shaft body 2121.
Since the diameter of the first spindle head 2122 and the diameter of the second spindle head 2123 are both smaller than the diameter of the spindle body 2121, the first elastic member 214 may be a spring, and the first elastic member 214 is sleeved outside the first spindle head 2122. The second elastic element 215 may be a spring, and the second elastic element 215 is sleeved outside the second rotating shaft head 2123.
In a preferred embodiment of the present invention, referring to fig. 7-10, in order to facilitate the movement of the rotating shaft body 2121, a second avoiding groove 114 is disposed on a side of the groove body 11 facing the second substrate 213, and the second rotating shaft head 2123 can be inserted into the second avoiding groove 114.
Specifically, when the rotating shaft body 2121 moves in a direction away from the first base plate 211, the second rotating shaft head 2123 also moves in the same direction and approaches the slot body 11, and since the slot body 11 is provided with the second avoiding groove 114, the second rotating shaft head 2123 is inserted into the second avoiding groove 114, and the second avoiding groove 114 avoids the second rotating shaft head 2123.
In a preferred embodiment of the present invention, referring to fig. 4, fig. 7-fig. 10, fig. 11 and fig. 13, in order to move the rotating shaft body 2121 conveniently, the erasing apparatus further includes:
a button 23;
one side of the tank body 11 facing the first base plate 211 is provided with a second notch 113, and the first spindle head 2122 penetrates through the second notch 113 to extend out of the tank body 11 and be connected with the button 23.
Specifically, by pressing the button 23, the rotation shaft body 2121 can be moved away from the first substrate 211, so that the rotation shaft body 2121 can be freely rotated. When the button 23 is released, the rotating shaft body 2121 moves toward the first base plate 211 under the action of the first elastic element 214 and the second elastic element 215, so that the limiting element 2112 limits the rotating shaft body 2121, thereby preventing the rotating shaft body 2121 from rotating.
In a preferred embodiment of the present invention, referring to fig. 7-8, in order to prevent the first shaft head 2122 from separating from the first through hole 2111 when the shaft body 2121 moves away from the first base plate 211, a first avoiding groove is disposed on a side of the groove body 11 facing the first base plate 211. That is, the length of the first shaft head 2122 is greater than the length of the second shaft head 2123, and when the first elastic member 214 and the second elastic member 215 are elastically deformed, the first shaft head 2122 is located in the first avoiding groove.
The rotating shaft body 2121 may adopt one rotating shaft body or a plurality of rotating shaft bodies, in order to ensure smooth rotation of the wetting member 22 and increase the area of the wetting member 22, the rotating shaft body 2121 adopts a plurality of rotating shaft bodies, and the rotating shaft body 2121 includes:
a first spindle body 212a, a first spindle head 2122 of the first spindle body 212a being connected to the push button 23;
and a second rotating shaft body 212b, into which the first rotating shaft head 2122 of the second rotating shaft body 212b is inserted.
Specifically, the wetting member 22 is wrapped around the first and second shaft bodies 212a and 212 b. At least two second rotating shaft bodies 212b are provided, and the at least two second rotating shaft bodies 212b are respectively positioned at two sides of the first rotating shaft body 212 a.
In a preferred embodiment of the present invention, referring to fig. 6-10, since the rotating shaft body 2121 has the first rotating shaft body 212a and the second rotating shaft body 212b, when the rotating shaft body 2121 moves, in order to ensure that the first rotating shaft body 212a and the second rotating shaft body 212b move synchronously, the rotating shaft body 2121 further includes:
a third substrate 212c, wherein the third substrate 212c is provided with a third through hole 212c1, a fourth through hole 212c2 and a fifth through hole 212c 3;
a fourth substrate 212d, the fourth substrate 212d being provided with a sixth through hole 212d1 and a seventh through hole 212d 2;
wherein the first spindle head 2122 of the first spindle body 212a passes through the third through hole 212c1 and rotates in the third through hole 212c 1;
the first spindle head 2122 of the second spindle body 212b penetrates the fourth through hole 212c2 and rotates in the fourth through hole 212c 2;
the limiting member 2112 penetrates through the fifth through hole 212c 3;
the second rotating shaft head 2123 of the first rotating shaft body 212a penetrates the sixth through hole 212d1 and rotates in the sixth through hole 212d 1;
the second rotating shaft head 2123 of the second rotating shaft body 212b penetrates the seventh through hole 212d2 and rotates in the seventh through hole 212d 2.
Specifically, the first and second rotation shaft bodies 212a and 212b are connected by the third and fourth base plates 212c and 212 d. Both ends of the first elastic member 214 are connected to the first substrate 211 and the third substrate 212c, respectively. Both ends of the second elastic member 215 are connected to the second substrate 213 and the fourth substrate 212d, respectively. When there are 2 second rotating shaft bodies 212b, two first elastic members 214 are used, and are respectively located between the first rotating shaft body 212a and the two second rotating shaft bodies 212 b. Two second elastic members 215 are also used, and are respectively located between the first rotation shaft body 212a and the two second rotation shaft bodies 212 b.
The invention also provides a display system comprising the erasing device in any of the above embodiments, as described above.
The display system provided by the invention has all the beneficial effects because of the erasing device in any technical scheme, and the description is omitted.
The display system further includes: capacitive screen. And erasing the written content on the capacitive screen by an erasing device. Because the erasing device is erased in a targeted manner, written contents still remain at the place where the erasing device is not in contact, thereby further improving the convenience of erasing.
It is to be understood that the invention is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the invention as defined by the appended claims.
Claims (10)
1. An erasing apparatus, characterized in that the erasing apparatus comprises:
a housing forming an accommodating space accommodating a conductive medium; an opening is formed in the shell;
the movable assembly is positioned at the opening and is movably connected with the shell;
wherein the side of the movable component facing the shell is soaked with the conductive medium; the movable component can move towards the side of the shell to the side, away from the shell, of the movable component.
2. An erasing device as claimed in claim 1, characterized in that the housing comprises:
a trough body;
the cover body is connected with the groove body, and the opening is formed in the cover body.
3. Erasing apparatus according to claim 2,
a sealing ring is arranged between the groove body and the cover body; and/or
The bottom of the tank body is provided with an inlet;
the inlet is provided with a door body, and the door body can open or close the inlet.
4. Erasing apparatus according to claim 2,
the cover body is positioned in the groove body;
the movable assembly includes:
the rotating piece is rotatably connected with the shell;
and the infiltration piece is wrapped outside the rotating shaft.
5. An erasing device as claimed in claim 4, characterized in that the rotating member comprises:
the first base plate, the rotating shaft assembly and the second base plate are connected in sequence;
wherein the first substrate and the second substrate are both disposed on the cover;
a first through hole is formed in the first substrate;
a second through hole is formed in the second substrate;
the pivot subassembly includes:
a rotating shaft body;
the first rotating shaft head is arranged at the first end of the rotating shaft body, penetrates through the first through hole and rotates in the first through hole;
the second rotating shaft head is arranged at the second end of the rotating shaft body, penetrates through the second through hole and rotates in the second through hole.
6. Erasing apparatus according to claim 5,
a first notch is formed in the first end of the rotating shaft body;
the first substrate is provided with a limiting piece, and the limiting piece extends to the first notch to limit the rotation of the rotating shaft body;
the rotating member further includes:
a first elastic member; two ends of the first elastic piece are respectively connected with the first substrate and the first end of the rotating shaft body;
a second elastic member; two ends of the second elastic piece are respectively connected with the second substrate and the second end of the rotating shaft body;
the rotating shaft body moves along the direction far away from the first substrate, so that the limiting piece is positioned outside the first gap.
7. Erasing apparatus according to claim 6,
the groove body towards one side of second base plate is provided with the second and keeps away the position groove, the first of second pivot can insert the second keeps away the position groove.
8. An erasing device as claimed in claim 6, characterized in that the erasing device further comprises:
a button;
a second notch is formed in one side, facing the first base plate, of the groove body, and the first spindle head penetrates through the second notch to extend out of the groove body and is connected with the button;
a first avoiding groove is formed in one side, facing the first substrate, of the groove body;
the pivot body includes:
the first rotating shaft head of the first rotating shaft body is connected with the button;
and the first rotating shaft head of the second rotating shaft body can be inserted into the first avoiding groove.
9. An erasing device as claimed in claim 8, characterized in that the spindle body further comprises:
the third substrate is provided with a third through hole, a fourth through hole and a fifth through hole;
the fourth substrate is provided with a sixth through hole and a seventh through hole;
the first spindle head of the first spindle body penetrates through the third through hole and rotates in the third through hole;
the first rotating shaft head of the second rotating shaft body penetrates through the fourth through hole and rotates in the fourth through hole;
the limiting piece penetrates through the fifth through hole;
the second rotating shaft head of the first rotating shaft body penetrates through the sixth through hole and rotates in the sixth through hole;
and the second rotating shaft head of the second rotating shaft body penetrates through the seventh through hole and rotates in the seventh through hole.
10. A display system, characterized in that the display system comprises:
the erasing device of any of claims 1 to 9;
capacitive screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011076848.4A CN114327159B (en) | 2020-10-10 | 2020-10-10 | Erasing device and display system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011076848.4A CN114327159B (en) | 2020-10-10 | 2020-10-10 | Erasing device and display system |
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| CN114327159A true CN114327159A (en) | 2022-04-12 |
| CN114327159B CN114327159B (en) | 2023-09-19 |
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Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61189063A (en) * | 1985-02-15 | 1986-08-22 | Matsushita Graphic Commun Syst Inc | Electronic blackboard |
| JPH0514564A (en) * | 1991-07-03 | 1993-01-22 | Ricoh Co Ltd | Method and device for erasing electronic blackboard |
| US5434371A (en) * | 1994-02-01 | 1995-07-18 | A.T. Cross Company | Hand-held electronic writing tool |
| JPH0844484A (en) * | 1994-07-27 | 1996-02-16 | Hitachi Ltd | Input pen on console |
| CN2739013Y (en) * | 2004-10-21 | 2005-11-09 | 王献峰 | Water-bag-type blackboard eraser |
| CN201357668Y (en) * | 2008-11-19 | 2009-12-09 | 司光耀 | Streamlined wet type rolling blackboard eraser |
| US20120080217A1 (en) * | 2010-10-01 | 2012-04-05 | Dongsup Kim | Electrostatic capacitive type touch screen panel |
| CN102785520A (en) * | 2012-08-13 | 2012-11-21 | 胡一诺 | Blackboard eraser |
| JP2014043005A (en) * | 2012-08-24 | 2014-03-13 | Panasonic Corp | Eraser for board |
| CN204123861U (en) * | 2014-08-28 | 2015-01-28 | 山西大学 | A kind ofly dip in tank for the blackboard eraser that absorbs water |
| CN107297982A (en) * | 2017-07-27 | 2017-10-27 | 冯雪 | A kind of Self-cleaning blackboard is wiped |
| CN107443982A (en) * | 2017-07-18 | 2017-12-08 | 安庆状元郎电子科技有限公司 | A kind of Multifunction electronic blackboard based on Digital Campus is wiped |
| CN109278450A (en) * | 2018-10-12 | 2019-01-29 | 业成科技（成都）有限公司 | Blank scrape along blackboard eraser system |
| CN208596364U (en) * | 2018-02-11 | 2019-03-12 | 深圳康得新智能显示科技有限公司 | Blackboard eraser |
-
2020
- 2020-10-10 CN CN202011076848.4A patent/CN114327159B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61189063A (en) * | 1985-02-15 | 1986-08-22 | Matsushita Graphic Commun Syst Inc | Electronic blackboard |
| JPH0514564A (en) * | 1991-07-03 | 1993-01-22 | Ricoh Co Ltd | Method and device for erasing electronic blackboard |
| US5434371A (en) * | 1994-02-01 | 1995-07-18 | A.T. Cross Company | Hand-held electronic writing tool |
| JPH0844484A (en) * | 1994-07-27 | 1996-02-16 | Hitachi Ltd | Input pen on console |
| CN2739013Y (en) * | 2004-10-21 | 2005-11-09 | 王献峰 | Water-bag-type blackboard eraser |
| CN201357668Y (en) * | 2008-11-19 | 2009-12-09 | 司光耀 | Streamlined wet type rolling blackboard eraser |
| US20120080217A1 (en) * | 2010-10-01 | 2012-04-05 | Dongsup Kim | Electrostatic capacitive type touch screen panel |
| CN102785520A (en) * | 2012-08-13 | 2012-11-21 | 胡一诺 | Blackboard eraser |
| JP2014043005A (en) * | 2012-08-24 | 2014-03-13 | Panasonic Corp | Eraser for board |
| CN204123861U (en) * | 2014-08-28 | 2015-01-28 | 山西大学 | A kind ofly dip in tank for the blackboard eraser that absorbs water |
| CN107443982A (en) * | 2017-07-18 | 2017-12-08 | 安庆状元郎电子科技有限公司 | A kind of Multifunction electronic blackboard based on Digital Campus is wiped |
| CN107297982A (en) * | 2017-07-27 | 2017-10-27 | 冯雪 | A kind of Self-cleaning blackboard is wiped |
| CN208596364U (en) * | 2018-02-11 | 2019-03-12 | 深圳康得新智能显示科技有限公司 | Blackboard eraser |
| CN109278450A (en) * | 2018-10-12 | 2019-01-29 | 业成科技（成都）有限公司 | Blank scrape along blackboard eraser system |
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