CN111870925A - Intelligent chessboard interaction device suitable for double-convex weiqi chessman - Google Patents
Intelligent chessboard interaction device suitable for double-convex weiqi chessman Download PDFInfo
- Publication number
- CN111870925A CN111870925A CN202010922412.6A CN202010922412A CN111870925A CN 111870925 A CN111870925 A CN 111870925A CN 202010922412 A CN202010922412 A CN 202010922412A CN 111870925 A CN111870925 A CN 111870925A
- Authority
- CN
- China
- Prior art keywords
- chess
- magnetic
- chess piece
- component
- chessboard
- 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.)
- Pending
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
- A63F3/00—Board games; Raffle games
- A63F3/02—Chess; Similar board games
Abstract
The invention provides an intelligent chessboard interaction device suitable for double-convex weiqi chessman, comprising: a board part (100), a detection part (300) and a chess piece part (400); the chessboard component (100) is arranged between the detection component (300) and the chess piece component (400); the number of the chess pieces (400) is one or more; the chess pieces (400) can be adsorbed on the upper surface of the chessboard part (100); the pawn part (400) comprises: a magnetic sheet member, a weight member (405); the weight component (405) and the magnetic force sheet component are arranged inside the chess piece component (400); the weight part (405) is arranged at the center of the chess piece part (400); the magnetic sheet member is in contact with a weight member (405); the magnetic sheet member includes: one or more magnetic plates; the invention can thoroughly solve the problem that the magnetic force between the magnetic balls in the grooves of the chessboard matrix and the double convex chessmen on the surface of the chessboard is repulsive to cause that the chessmen can not be positioned or displaced.
Description
Technical Field
The invention relates to the technical field of intelligent chessboard, in particular to an intelligent chessboard interaction device suitable for double-convex weiqi chesses.
Background
The technical level of off-line entity go training still has a plurality of problems, and a teacher mainly adopts an electronic hanging disc or a common hanging disc during teaching, and the teaching mode is not obviously changed; the classroom discipline of students, the enthusiasm of quiz and question asking, the answering quality and answering efficiency, and the number of questions made in classroom in real time; important information such as understanding of knowledge points of students cannot form electronic informatization, digitization and visualization in detail; the new teaching mode that one tablet computer of student's staff installs weiqi software is novel enough, not true enough, and the display interface is narrow and small, and experience nature is general, and more importantly watches electronic screen for a long time and injures eyesight. In the technical application scene, an intelligent chessboard interaction device suitable for double-convex weiqi chesses is urgently needed in the prior art.
Patent document CN109966728A discloses a multifunctional chess playing table, which comprises a table frame, wherein the upper surface of the table frame is provided with a plurality of turnover plates combined into a chess board surface, and the side surfaces of the turnover plates are provided with driven turnover belt wheels; a belt wheel mounting frame is fixedly arranged in the table frame, and a driving belt wheel and a driven belt wheel are arranged in the belt wheel mounting frame; one end of a central rotating shaft of the driving belt wheel is connected with a rocking handle, and the other end of the central rotating shaft of the driving belt wheel is provided with a driving overturning belt wheel; a central rotating shaft of the driven belt wheel is rigidly connected with a linkage shaft, and two ends of the linkage shaft are respectively provided with a crank link mechanism; the upper surface of the table frame is provided with chess box openings positioned at two sides of the turnover plate; the table frame is provided with fixing plates located on two sides below the chess box opening, the lower end of each fixing plate is provided with a sliding rail, the sliding rail is provided with a crank sliding block connected with a crank connecting rod mechanism, the crank sliding block is provided with a chess box formed by a plurality of cavities, the opening of the chess box is coincided with the chess box opening, but the design function is single, and especially the space of the chess piece and the chess board remains to be improved in structure.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an intelligent chessboard interaction device suitable for double-convex weiqi chesses.
The invention provides an intelligent chessboard interaction device suitable for double-convex weiqi chesses, which comprises: a board part 100, a detection part 300 and a chess piece part 400; the chessboard component 100 is disposed between the detection component 300 and the chess piece component 400; the number of the chess pieces 400 is one or more; the plurality of pawn parts 400 may be attached to the upper surface of the board part 100; the pawn part 400 comprises: a magnetic sheet member, a weight member 405; the weight part 405 and the magnetic force sheet part are arranged inside the chess piece part 400; the weight part 405 is arranged at the center of the chess piece part 400; the magnetic sheet member is in contact with the weight member 405; the magnetic sheet member includes: one or more magnetic plates.
Preferably, the pawn part 400 comprises: a chess piece upper cover 401 and a chess piece lower cover 402; the chess piece upper cover 401 is arranged on the upper part of the chess piece part 400; the chess piece lower cover 402 is arranged at the lower part of the chess piece part 400; the chess piece upper cover 401 is connected with the chess piece lower cover 402;
the magnetic sheet member includes: a first magnetic sheet member 403 and a second magnetic sheet member 404.
Preferably, the magnetic sheet takes any one of the following shapes: -a circular sheet; -an elliptical sheet; -triangular patches; -a square sheet;
the number of the magnetic sheets is two; the two magnetic force pieces are respectively arranged above the weight member 405 and below the weight member 405;
the first magnetic sheet member 403 is disposed above the weight component 405; the second magnetic sheet member 404 is disposed below the weight component 405.
Preferably, the method further comprises the following steps: ultrasonic weld points 406; the ultrasonic welding points 406 are arranged at the connection of the chess piece upper cover 401 and the chess piece lower cover 402.
Preferably, the method further comprises the following steps: a display unit 200, a control device; the display part 200 and the detection part 300 are connected with a control device; the display part 200 is wholly or partially arranged on the upper surface of the chessboard 100; the display unit 200 includes one or more display members; the display component adopts any one of the following display modes: -dot-like display mode; -a sheet-like display mode; -dot matrix display.
Preferably, the method further comprises the following steps: a housing of the chess; the chessboard member 100 is arranged on the outer shell of the chess; the chess shell is made of plastic.
Preferably, the detecting part 300 includes: a groove member 301, a detection magnetic member 302; the groove members 301 are arranged in a matrix; the magnetic force detecting component 302 is disposed inside the groove member 301.
Preferably, the detecting magnetic force component 302 is a detecting magnetic ball; the diameter of the recess member 301 is larger than the diameter of the detection magnet ball.
Preferably, the detecting part 300 further includes: conductive sheet 303, conductive cavity 304; the conductive cavity 304 is disposed on the upper portion of the detecting member 300; the conductive sheet 303 is arranged inside the conductive cavity 304; the thickness of the conductive plate 303 is less than the depth of the conductive cavity 304.
Preferably, the method further comprises the following steps: a PCB circuit board component; the PCB circuit board assembly includes: a PCB circuit board 5, a PCB switch contact 6; the PCB circuit board part is arranged between the detection part 300 and the chess piece part 400; the PCB switch contact 6 is disposed below the PCB circuit board 5.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention can thoroughly solve the problem that the magnetic force between the magnetic balls in the grooves of the chessboard matrix and the double convex chessmen on the surface of the chessboard is repulsive to cause that the chessmen can not fall or move;
2. the invention has reasonable structure and convenient use, and can overcome the defects of the prior art;
3. the invention further improves the interaction efficiency of teachers and students in a digital classroom, and particularly aims at the physical characteristic that when a student puts chess on the surface of an intelligent chessboard according to the electronic questions of the teacher, the pieces of the go chess contain the magnetic balls which attract the magnet wafers right below the intelligent chessboard, so that the following effects are achieved: the user can quickly place the chessmen, accurately place the chessmen and easily pick the chessmen; when the user puts the chessmen and deflects, the deflection phenomenon of the chessmen is automatically corrected under the action of magnetic force so as to keep the central point of the bottom of the chessmen corresponding to the central position of the cross falling chessman of the chessman grid; the problem of abnormal movement and displacement of other chess pieces caused by mistaken touch of other chess pieces is avoided in the chess playing process, and manual intervention in board resetting is avoided.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
figure 1 is a schematic view of the overall structure of the pawn part of the invention.
FIG. 2 is a schematic diagram of the overall structure of the groove member and the conductive cavity of the detecting member according to the present invention.
Fig. 3 is a schematic diagram of the overall structure of the groove member and the magnetic force detecting member of the detecting member according to the present invention.
Fig. 4 is a schematic diagram of the overall structure of the detecting member according to the present invention.
FIG. 5 is a schematic diagram of the overall structure of the chess pieces and the detecting elements according to the present invention.
Fig. 6 is a schematic diagram of the overall structure of the present invention.
Fig. 7 is a schematic view of the structural principle of the groove member in the embodiment of the present invention.
Fig. 8 is a schematic structural diagram of a detection component according to an embodiment of the present invention.
In the figure:
The first magnetic sheet member 403 of the detecting part 300
Groove member 301 second magnetic sheet member 404
Detecting magnetic force component 302 weight component 405
Chessman part 400 PCB switch contact 6
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.
As shown in fig. 1-8, the intelligent chessboard interacting device for double-convex weiqi chess pieces provided by the present invention comprises: a board part 100, a detection part 300 and a chess piece part 400; the chessboard component 100 is disposed between the detection component 300 and the chess piece component 400; the number of the chess pieces 400 is one or more; the plurality of pawn parts 400 may be attached to the upper surface of the board part 100; the pawn part 400 comprises: a magnetic sheet member, a weight member 405; the weight part 405 and the magnetic force sheet part are arranged inside the chess piece part 400; the weight part 405 is arranged at the center of the chess piece part 400; the magnetic sheet member is in contact with the weight member 405; the magnetic sheet member includes: one or more magnetic plates.
Preferably, the pawn part 400 comprises: a chess piece upper cover 401 and a chess piece lower cover 402; the chess piece upper cover 401 is arranged on the upper part of the chess piece part 400; the chess piece lower cover 402 is arranged at the lower part of the chess piece part 400; the chess piece upper cover 401 is connected with the chess piece lower cover 402;
the magnetic sheet member includes: a first magnetic sheet member 403 and a second magnetic sheet member 404.
Preferably, the magnetic sheet takes any one of the following shapes: -a circular sheet; -an elliptical sheet; -triangular patches; -a square sheet;
the number of the magnetic sheets is two; the two magnetic force pieces are respectively provided above the weight member 405 and below the weight member 405.
Preferably, the method further comprises the following steps: ultrasonic weld points 406; the ultrasonic welding points 406 are arranged at the connection of the chess piece upper cover 401 and the chess piece lower cover 402.
Preferably, the method further comprises the following steps: a display unit 200, a control device; the display part 200 and the detection part 300 are connected with a control device; the display part 200 is wholly or partially arranged on the upper surface of the chessboard 100; the display unit 200 includes one or more display members; the display component adopts any one of the following display modes: -dot-like display mode; -a sheet-like display mode; -dot matrix display.
Preferably, the method further comprises the following steps: a housing of the chess; the chessboard member 100 is arranged on the outer shell of the chess; the chess shell is made of plastic.
Preferably, the detecting part 300 includes: a groove member 301, a detection magnetic member 302; the groove members 301 are arranged in a matrix; the magnetic force detecting component 302 is disposed inside the groove member 301.
Preferably, the detecting magnetic force component 302 is a detecting magnetic ball; the diameter of the recess member 301 is larger than the diameter of the detection magnet ball.
Preferably, the detecting part 300 further includes: conductive sheet 303, conductive cavity 304; the conductive cavity 304 is disposed on the upper portion of the detecting member 300; the conductive sheet 303 is arranged inside the conductive cavity 304; the thickness of the conductive plate 303 is less than the depth of the conductive cavity 304.
Preferably, the method further comprises the following steps: a PCB circuit board component; the PCB circuit board assembly includes: a PCB circuit board 5, a PCB switch contact 6; the PCB circuit board part is arranged between the detection part 300 and the chess piece part 400; the PCB switch contact 6 is disposed below the PCB circuit board 5.
In one embodiment, in the intelligent chessboard interaction device suitable for the double-convex weiqi chessmen, the double-convex weiqi chessmen adopt common black magnetic magnets to replace magnetic balls, so that the physical magnetic attraction between the chessmen and the chessmen is obviously reduced, and the user experience is greatly improved.
The influencing user experience is embodied as follows;
when a user picks and places the chess pieces on the surface of the chessboard, when the chess pieces in the hand of the user are close to the chess pieces on the chessboard, the chess pieces on the surface of the chessboard are easily attracted by the chess pieces in the hand of the user, so that the normal chess pieces on the chessboard are dislocated.
The chessmen and the chessmen are in the chessman box, and the chessmen are strongly attracted under the action of the magnetic ball, so that the experience is influenced.
The biconvex weiqi piece has the structure that; upper chess piece cover, lower chess piece cover, balancing weight, ordinary black magnetic magnet disk or rubber magnetic disk. The balancing weight is in a disc shape, lead or/and iron are/is adopted as main materials, an independent black magnet disc or a rubber magnetic sheet is attached to the upper surface of the balancing weight, and an independent black magnet disc or a rubber magnetic sheet is attached to the lower surface of the balancing weight. The balancing weight and the black magnetic magnet wafer or the rubber magnetic sheet are mounted and embedded in the chess piece upper cover and the lower cover containing grooves. The upper cover of the chess piece is provided with an ultrasonic welding spot, the lower cover of the chess piece is provided with a welding spot groove, and the upper cover and the lower cover of the chess piece are combined and then welded by ultrasonic waves to finally form a complete double-convex chess piece.
The intelligent chessboard matrix groove adopts a structural design, and the intelligent chessboard matrix groove adopts a plastic grinding tool injection molding one-step forming process.
The magnetic balls are embedded into the grooves of the intelligent chessboard matrix, the diameter of each groove of the chessboard matrix is larger than the diameter of each magnetic ball, the problem that the chesses cannot fall or move due to the fact that the magnetic balls are in the grooves and are freely turned over under the physical magnetic action of the chesses with magnets is solved, and the problem that the chesses on the surfaces of the chessboard cannot fall or move due to the fact that the magnetic force of the magnetic balls in the grooves of the chessboard matrix is mutually repulsive with the double-convex chesses on the.
The intelligent chessboard matrix groove is characterized in that the intelligent chessboard matrix groove also comprises a conducting strip, the conducting strip base material adopts a hard plastic plate, a conducting layer is pasted on the upper surface of the hard plastic plate, and the conducting layer adopts materials with conducting characteristics, such as conducting sponge or/and conducting rubber sheets or/and conducting cloth. The conductive base material is made of hard plate plastic or synthetic materials and other materials with hardness, and the problem that the flexible up-and-down follow-up of the conductive sheet is achieved because the base material of the conductive sheet has certain hardness when the magnetic ball is in contact with the conductive sheet in a point-to-surface contact mode is solved. When the principle is utilized, the magnetic ball drives the conducting strip to firmly contact with the PCB contact when the magnetic ball is attracted by the chess pieces on the surface of the chessboard, so that the stability of the conducting strip and the PCB contact is improved.
The invention can thoroughly solve the problem that the magnetic force between the magnetic balls in the grooves of the chessboard matrix and the double convex chessmen on the surface of the chessboard is repulsive to cause that the chessmen can not fall or move; the invention has reasonable structure and convenient use, and can overcome the defects of the prior art; the invention further improves the interaction efficiency of teachers and students in a digital classroom, and particularly aims at the physical characteristic that when a student puts chess on the surface of an intelligent chessboard according to the electronic questions of the teacher, the pieces of the go chess contain the magnetic balls which attract the magnet wafers right below the intelligent chessboard, so that the following effects are achieved: the user can quickly place the chessmen, accurately place the chessmen and easily pick the chessmen; when the user puts the chessmen and deflects, the deflection phenomenon of the chessmen is automatically corrected under the action of magnetic force so as to keep the central point of the bottom of the chessmen corresponding to the central position of the cross falling chessman of the chessman grid; the problem of abnormal movement and displacement of other chess pieces caused by mistaken touch of other chess pieces is avoided in the chess playing process, and manual intervention in board resetting is avoided.
In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (10)
1. The utility model provides an intelligence chess board interaction arrangement suitable for biconvex weiqi piece which characterized in that includes: a board part (100), a detection part (300) and a chess piece part (400);
the chessboard component (100) is arranged between the detection component (300) and the chess piece component (400);
the number of the chess pieces (400) is one or more;
the chess pieces (400) can be adsorbed on the upper surface of the chessboard part (100);
the pawn part (400) comprises: a magnetic sheet member, a weight member (405);
the weight component (405) and the magnetic force sheet component are arranged inside the chess piece component (400);
the weight part (405) is arranged at the center of the chess piece part (400);
the magnetic sheet member is in contact with a weight member (405);
the magnetic sheet member includes: one or more magnetic plates.
2. The intelligent board interaction device for bi-convex weiqi pieces as claimed in claim 1, wherein said piece parts (400) comprise: an upper chess piece cover (401) and a lower chess piece cover (402);
the chess piece upper cover (401) is arranged on the upper part of the chess piece part (400);
the chess piece lower cover (402) is arranged at the lower part of the chess piece part (400);
the chess piece upper cover (401) is connected with the chess piece lower cover (402);
the magnetic sheet member includes: a first magnetic sheet member (403) and a second magnetic sheet member (404).
3. The intelligent board interaction apparatus for bi-convex weiqi pieces as claimed in claim 2, wherein said magnetic pieces take any one of the following shapes:
-a circular sheet;
-an elliptical sheet;
-triangular patches;
-a square sheet;
the number of the magnetic sheets is two;
the first magnetic sheet member (403) is disposed above a weight component (405);
the second magnetic sheet member (404) is disposed below the weight member (405).
4. The intelligent board interaction device of claim 1, further comprising: an ultrasonic weld (406);
the ultrasonic welding points (406) are arranged at the connection part of the chess piece upper cover (401) and the chess piece lower cover (402).
5. The intelligent board interaction device of claim 1, further comprising: a display unit (200) and a control device;
the display part (200) and the detection part (300) are connected with the control device;
the display part (200) is wholly or partially arranged on the upper surface of the chessboard part (100);
the display unit (200) comprises one or more display members;
the display component adopts any one of the following display modes:
-dot-like display mode;
-a sheet-like display mode;
-dot matrix like display mode.
6. The intelligent board interaction device of claim 1, further comprising: a housing of the chess;
the chessboard component (100) is arranged on the chess shell;
the chess shell is made of plastic.
7. The intelligent board interaction device for bi-convex weiqi pieces as claimed in claim 6, wherein the detecting means (300) comprises: a groove member (301), a magnetic force detecting member (302);
the groove members (301) are arranged in a matrix;
the magnetic force detecting component (302) is arranged inside the groove component (301).
8. The intelligent board interaction device for double-convex weiqi pieces as claimed in claim 7, wherein said detecting magnetic means (302) is a detecting magnetic ball;
the diameter of the groove member (301) is larger than the diameter of the detection magnet ball.
9. The intelligent board interaction apparatus for bi-convex weiqi pieces as claimed in claim 8, wherein the detecting means (300) further comprises: a conducting plate (303), a conducting cavity (304);
the conductive cavity (304) is arranged at the upper part of the detection part (300);
the conducting sheet (303) is arranged inside the conducting cavity (304);
the thickness of the conductive sheet (303) is less than the depth of the conductive cavity (304).
10. The intelligent board interaction device of claim 1, further comprising: a PCB circuit board component;
the PCB circuit board assembly includes: a PCB circuit board (5) and a PCB switch contact (6);
the PCB circuit board part is arranged between the detection part (300) and the chess piece part (400);
the PCB switch contact (6) is arranged below the PCB circuit board (5).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010922412.6A CN111870925A (en) | 2020-09-04 | 2020-09-04 | Intelligent chessboard interaction device suitable for double-convex weiqi chessman |
| PCT/CN2020/138516 WO2022048068A1 (en) | 2020-09-04 | 2020-12-23 | Intelligent checkerboard interaction device suitable for biconvex go stones |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010922412.6A CN111870925A (en) | 2020-09-04 | 2020-09-04 | Intelligent chessboard interaction device suitable for double-convex weiqi chessman |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111870925A true CN111870925A (en) | 2020-11-03 |
Family
ID=73199589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010922412.6A Pending CN111870925A (en) | 2020-09-04 | 2020-09-04 | Intelligent chessboard interaction device suitable for double-convex weiqi chessman |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111870925A (en) |
| WO (1) | WO2022048068A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113289325A (en) * | 2021-05-31 | 2021-08-24 | 温州大学 | Automatic multi-surface overturning lifting chessboard device |
| WO2022048068A1 (en) * | 2020-09-04 | 2022-03-10 | 上海晟禾智能科技有限公司 | Intelligent checkerboard interaction device suitable for biconvex go stones |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87208590U (en) * | 1987-05-28 | 1988-01-27 | 原泽 | Intellectual chessboard system |
| WO2005106831A1 (en) * | 2004-04-26 | 2005-11-10 | Visichip Company, Llc | Video message device |
| EP2882507A4 (en) * | 2012-08-09 | 2016-08-31 | Itzhak Grinold | Game platform and game cards thereof |
| CN204563565U (en) * | 2015-05-01 | 2015-08-19 | 林月妹 | A kind of toy for children chess |
| EP3278847A1 (en) * | 2016-08-03 | 2018-02-07 | Tamlino Import & Advisory LP | Board game |
| CN111870925A (en) * | 2020-09-04 | 2020-11-03 | 上海晟禾智能科技有限公司 | Intelligent chessboard interaction device suitable for double-convex weiqi chessman |
-
2020
- 2020-09-04 CN CN202010922412.6A patent/CN111870925A/en active Pending
- 2020-12-23 WO PCT/CN2020/138516 patent/WO2022048068A1/en active Application Filing
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022048068A1 (en) * | 2020-09-04 | 2022-03-10 | 上海晟禾智能科技有限公司 | Intelligent checkerboard interaction device suitable for biconvex go stones |
| CN113289325A (en) * | 2021-05-31 | 2021-08-24 | 温州大学 | Automatic multi-surface overturning lifting chessboard device |
| CN113289325B (en) * | 2021-05-31 | 2023-06-06 | 温州大学 | Automatic multiaspect upset lift chess board device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022048068A1 (en) | 2022-03-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111870925A (en) | Intelligent chessboard interaction device suitable for double-convex weiqi chessman | |
| CN212880969U (en) | Intelligent chessboard interaction device suitable for double-convex weiqi chessman | |
| CN212880967U (en) | Chess device with magnetic chess pieces | |
| WO2021248874A1 (en) | Chess piece movement guiding and displaying device suitable for intelligent chess set | |
| CN209328335U (en) | A kind of teaching aid for the demonstration of middle school chemistry atomic structure | |
| CN211427541U (en) | Rotary English ball for infant enlightenment education | |
| CN209804008U (en) | Multi-functional primary school mathematics teaching aid | |
| CN111760263A (en) | Chess device with magnetic chess pieces | |
| CN212325872U (en) | Rack is used in music teaching | |
| CN211454871U (en) | Electronic machine learning device | |
| CN201192957Y (en) | Environment friendly digital blackboard | |
| CN218187826U (en) | Training device for improving memory and intelligence | |
| CN216053509U (en) | Magnetic field simulation equipment for college physics experiments | |
| CN210324739U (en) | Tactile cognition psychological adjustment bump card | |
| WO2022126298A1 (en) | Interesting infant-teaching display device | |
| CN219167706U (en) | Magnetic plate educational toy | |
| CN215007006U (en) | Wu-culture characteristic children mathematics enlightenment toy teaching aid | |
| CN213491893U (en) | A bed ball trainer for volleyball teaching | |
| CN214504653U (en) | Interactive thinking training learning machine for children | |
| CN215015671U (en) | Display device for robot education | |
| CN215310152U (en) | Automatic chess utensil of rectifying based on magnetic sensor | |
| CN214377123U (en) | Auxiliary demonstration device for media design teaching | |
| CN209328244U (en) | A kind of demonstration teaching aid of suitable language teaching | |
| CN210302345U (en) | Huarongdao toy electronic handwriting pad | |
| CN207575794U (en) | Simulate the toy of medical procedure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |