One-piece chessboard

Abstract

This utility model relates to an integrated chessboard, comprising: a shell with a receiving cavity; a rotating component disposed in the receiving cavity, the rotating component including a rotating shaft, a rotating block, and a returning component, the rotating shaft passing through the rotating block and fixed to the shell, the rotating block having multiple display surfaces, the rotating block rotating around the rotating shaft to switch the display surface located on the upper side, the returning component being fixed to the rotating block and driving the upper display surface to return to horizontal alignment; and a partition fixed within the receiving cavity, the partition being located between adjacent rotating blocks. This utility model aims to solve the problems of chess pieces being tilted or uneven on the chessboard surface and accidental contact between adjacent pieces, affecting the gaming experience and aesthetics.

Description

Technical Field

[0001] This utility model relates to the field of toy technology, and in particular to an integrated chessboard. Background Technology

[0002] Currently, most commercially available Go and Go rotating games use a structure with an iron axle, where the triangular pieces rotate by pressing them together on both sides. However, this design has significant drawbacks: when the player manually rotates a piece, adjacent pieces are also moved, and due to the lack of an automatic rebound mechanism, the triangular pieces cannot return to a horizontal position on their own, causing the pieces on the board to tilt or become uneven, affecting the gaming experience and aesthetics. Furthermore, pieces with traditional structures are prone to loosening or falling off due to frequent manipulation, posing a risk of loss, and their limited functionality makes it difficult to simultaneously meet the needs of switching between different game types and integrating the board.

[0003] Therefore, there is an urgent need for a new type of rotational spring-loaded structure that can achieve stable rotation and automatic reset of the pieces, ensure the overall flatness of the chessboard, and simultaneously take into account the practicality of switching between multiple chess games and the durability of the product. Utility Model Content

[0004] The present invention provides an integrated chessboard to solve the problems of chess pieces being tilted or uneven on the surface of the chessboard and accidental contact between adjacent chess pieces, which affect the game experience and aesthetics.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] An integrated chessboard, comprising:

[0007] The shell has a receiving cavity;

[0008] A rotating component is disposed in the receiving cavity. The rotating component includes a rotating shaft, a rotating block, and a return component. The rotating shaft passes through the rotating block and is fixed to the housing. The rotating block is provided with multiple display surfaces. The rotating block rotates around the rotating shaft to switch the display surface located on the upper side. The return component is fixed to the rotating block and drives the upper display surface to return to horizontal alignment.

[0009] A partition is fixed inside the receiving cavity, and the partition is located between adjacent rotating blocks.

[0010] Optionally, the rotating block has a mounting hole at its center, and the return element is a spring piece disposed in the mounting hole. The return element encloses and forms a rotation space through which the rotating shaft passes.

[0011] Optionally, one end of the return component is connected to the inner wall of the mounting hole, and the other end is suspended in the air. Three return components are provided and enclose the rotation space. The rotating shaft is a triangular prism structure, and the shape of the rotation space corresponds to that of the rotating shaft.

[0012] Optionally, the return component includes a first section and a second section, the first section and the second section are connected by an arc transition, the first section is fixedly connected to the inner wall of the mounting hole, and the second section is suspended and parallel to the surface of the rotating shaft.

[0013] Optionally, the centering component is a magnetic component, which includes a first magnetic component and a second magnetic component. The first magnetic component is embedded in the corner of the rotating block, and the second magnetic component is fixed in the receiving cavity and located directly below the rotating block. Therefore, the second magnetic component magnetically attracts the first magnetic component to make the upper display surface return to a horizontal position.

[0014] Optionally, the housing includes a top cover and a bottom plate that fit together. The top cover has an opening to avoid the rotating block, and the bottom plate has the receiving cavity. The opening corresponds to the receiving cavity.

[0015] Optionally, the housing further includes two opposing first support plates, which are located on the two sides of the receiving cavity. Each of the two first support plates has a fixing groove, and the two ends of the rotating shaft are respectively installed in the fixing groove. The upper cover covers the upper opening of the fixing groove.

[0016] Optionally, the housing further includes two second support plates located on the two sides of the receiving cavity, the second support plates having a first slot, the bottom wall of the receiving cavity having a second slot communicating with the first slot, the first slot and the second slot for the partition to be inserted and fixed, and the top cover covering the upper opening of the first slot.

[0017] Optionally, the partition is perpendicular to the rotating shaft, and the upper end of the partition has a support groove for the rotating shaft to be inserted into, so as to support the rotating shaft.

[0018] Optionally, the rotating block includes three display surfaces, which are respectively set as black pieces, white pieces, and grid lines.

[0019] As can be seen from the above technical solution, the embodiments of this utility model have at least the following advantages and positive effects:

[0020] The integrated chessboard of this utility model embodiment includes a housing with a receiving cavity, and a rotating component installed in the receiving cavity. The rotating component includes a rotating shaft and a rotating block. The rotating shaft passes through the rotating block, causing the rotating block to rotate around the rotating shaft. The rotating component also includes a return component fixed on the rotating block. When the rotating block rotates around the rotating shaft to switch the upper display surface, the return component drives the rotating block to return to the center, so that the upper display surface remains horizontal, allowing the chess pieces to automatically return to the horizontal state, improving the gaming experience and aesthetics. In addition, a partition is set between two adjacent rotating blocks. When one rotating block rotates, the other rotating block is separated by the partition and remains stationary to prevent the chess pieces from being accidentally touched. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of the integrated chessboard of this utility model;

[0023] Figure 2 This is a schematic diagram of the first exploded structure of the integrated chessboard of this utility model;

[0024] Figure 3 This is a cross-sectional three-dimensional structural diagram of the integrated chessboard of this utility model;

[0025] Figure 4 for Figure 3 A schematic diagram of the cross-sectional structure of the rotating component;

[0026] Figure 5 This is a cross-sectional structural diagram of the second embodiment of the integrated chessboard of this utility model;

[0027] Figure 6 This is a schematic diagram of the second exploded structure of the integrated chessboard of this utility model;

[0028] Figure 7 for Figure 6 A magnified structural diagram of region A in the middle.

[0029] The annotations in the attached figures are explained as follows:

[0030] 1. Housing; 11. Receiving cavity; 111. Second slot; 12. Top cover; 121. Clearance opening; 122. Limiting block; 13. Base plate; 14. First support plate; 141. Fixing groove; 15. Second support plate; 151. First slot;

[0031] 2. Rotating component; 21. Rotating shaft; 22. Rotating block; 221. Display surface; 222. Mounting hole; 223. Rotation space; 23. Returning component; 231. First section; 232. Second section; 233. First magnetic component; 234. Second magnetic component;

[0032] 3. Partition plate; 31. Support groove. Detailed Implementation

[0033] Typical embodiments embodying the features and advantages of this utility model will be described in detail in the following description. It should be understood that this utility model can have various variations in different embodiments, all of which do not depart from the scope of this utility model, and the descriptions and illustrations therein are for illustrative purposes only and not intended to limit this utility model.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] See Figures 1 to 7 This utility model provides an integrated chessboard for users to complete chess games. After the chess pieces are moved, the return mechanism 23 drives the chess pieces to automatically return to a horizontal state, improving the chess game experience.

[0037] Furthermore, the integrated chessboard includes a housing 1, a rotating component 2, and a partition 3. The housing 1 has a receiving cavity 11, and the rotating component 2 is disposed in the receiving cavity 11. The rotating component 2 includes a rotating shaft 21, a rotating block 22, and a returning component 23. The rotating shaft 21 passes through the center of the rotating block 22 and is fixed to the housing 1. The rotating block 22 is provided with multiple display surfaces 221, each display surface 221 being provided with different patterns and colors. The rotating block 22 rotates around the rotating shaft 21 to switch the display surface 221 located on the upper side. The returning component 23 is fixed to the rotating block 22 and drives the upper display surface 221 to return to horizontal alignment. The partition 3 is fixed in the receiving cavity 11 and is located between adjacent rotating blocks 22.

[0038] The integrated chessboard of this utility model embodiment has a rotating block 22 that is a combination of traditional chess pieces and a chessboard. The rotating block 22 rotates around the pivot 21, thereby switching between different display surfaces 221. When the user rotates the rotating block 22, the desired display surface 221 is switched to the upper side. At this time, the return component 23 is triggered and drives the rotating block 22 to return to the center, so that the desired display surface 221 faces upward and remains horizontal. This allows the chess pieces to automatically return to the horizontal position when the user plays chess, improving the gaming experience and the aesthetics of the chessboard. In addition, the partition 3 is vertically fixed in the receiving cavity 11 and extends between two adjacent rotating blocks 22. When one rotating block 22 rotates, the other rotating block 22 is separated by the partition 3 and remains stationary to prevent adjacent chess pieces from being accidentally touched, thereby realizing the single-push single-action of chess pieces.

[0039] Furthermore, the rotating block 22 has a mounting hole 222 at its center, and the return element 23 is a spring piece disposed within the mounting hole 222. The return element 23 encloses and forms a rotation space 223 through which the rotating shaft 21 passes. In this embodiment, the mounting hole 222 penetrates the rotating block 22, and the return element 23 is a deformable spring piece that generates elastic force. The return element 23 is fixedly disposed within the mounting hole 222, which provides space for deformation of the return element 23. The return element 23 encloses and forms the rotation space 223, which is located inside the mounting hole 222 and at the center of the rotating block 22. The rotating shaft 21 passes through the rotation space 223. When the rotating block 22 rotates around the rotating shaft 21, the rotating shaft 21 compresses the return element 23, causing the return element 23 to deform, thereby generating a reverse elastic force to drive the rotating block 22 back to a horizontal state.

[0040] Furthermore, one end of the return element 23 is connected to the inner wall of the mounting hole 222, and the other end is suspended. Three return elements 23 are provided and enclose a rotation space 223. The rotating shaft 21 is a triangular prism structure, and the shape of the rotation space 223 corresponds to that of the rotating shaft 21. In this embodiment, the return element 23 is a spring piece. One end of the return element 23 is integrally connected to the inner wall of the mounting hole 222, and the other end of the return element 23 is suspended. When the suspended end of the return element 23 is moved, the return element 23 generates a directional elastic force. The rotating block 22 is an equilateral triangular prism structure and has three corresponding display surfaces 221. The rotating shaft 21 is also an equilateral triangular prism structure. There are three return elements 23. The three return elements 23 extend obliquely and enclose a rotation space 223, which corresponds to the shape of the rotating shaft 21.

[0041] The three display surfaces 221 of the rotating block 22 are defined as the first, second, and third display surfaces 221, respectively, and the corresponding surfaces of the rotating shaft 21 are the first, second, and third surfaces, respectively. The return components 23 are the first, second, and third return components 23, respectively. In the initial state, the first display surface 221 of the rotating block 22 is horizontally upward, and the first surface of the rotating shaft 21 is parallel and in contact with the first return component 23. At this time, the first return component 23 remains in a state without deformation. When the user moves the rotating block 22 to switch the second display surface 221 to face upwards, the rotating block 22 rotates around the pivot 21. The pivot 21 rotates relative to the return element 23, and the rotating edges press against the return element 23, causing it to deform. Since the rotating block 22 is an equilateral triangular prism structure, switching each display surface 221 requires the rotating block 22 to rotate 120 degrees. Therefore, when the user moves the rotating block 22 from 0 to 60 degrees, the elastic force generated by the return element 23 acts on the rotating block 22 in the opposite direction to the direction of the user's movement, causing the return element 23 to deform. As the deformation gradually increases, the angle between the first return element 23 and the first surface of the rotating shaft 21 gradually increases. When the user rotates the rotating block 22 by more than 60 degrees, the elastic force generated by the return element 23 exerts a force on the rotating block 22 in the same direction as the user's rotation. At this time, the first return element 23 gradually recovers its deformation and gradually moves closer to the second surface of the rotating shaft 21 until the first return element 23 is parallel to the second surface of the rotating shaft 21. At this time, the first return element 23 has completely recovered its deformation, and the second display surface 221 on the upper side of the rotating block 22 remains horizontal. It can be understood that the deformation process of the first, second, and third return elements 23 is the same during rotation.

[0042] It is understood that in other embodiments, the return element 23 may also be an annular spring sheet. For example, the annular spring sheet forms a rotation space 223 around the rotation space 223. The annular spring sheet is provided with multiple protrusions along the circumference. When the rotating block 22 rotates around the rotating shaft 21, the rotating shaft 21 squeezes the protrusions to generate elastic force. When the user releases the rotating block 22, the protrusions release the elastic force and push the rotating block 22 to rotate to a horizontal state so that the elastic protrusions of the annular spring sheet can restore their deformation.

[0043] Furthermore, the return element 23 includes a first segment 231 and a second segment 232, which are connected by an arc-shaped transition. The first segment 231 is fixedly connected to the inner wall of the mounting hole 222, while the second segment 232 is suspended and parallel to the surface of the rotating shaft 21. The return element 23 is composed of two integrally connected spring pieces. The first segment 231 and the second segment 232 are connected by an arc-shaped transition, and the concave direction of the arc-shaped structure faces the rotation space 223. Compared with a straight single-segment spring piece, the arc-connected two-segment spring piece can improve the deformation capability of the return element 23. When the rotating block 22 rotates, the two-segment return element 23 has a larger deformation range and can generate greater elastic force. Moreover, the arc-shaped structure of the return element 23 can deform synchronously when the return element 23 is compressed, thereby sharing the deformation pressure at the connection between the return element 23 and the inner wall of the mounting hole 222 and improving the strength of the return element 23 itself.

[0044] Furthermore, in another embodiment, reference is made to... Figure 5 The return component 23 is a magnetic component, which includes a first magnetic component 233 and a second magnetic component 234. The first magnetic component 233 is embedded in the corner of the rotating block 22, and the second magnetic component 234 is fixed in the receiving cavity 11 and located directly below the rotating block 22. Therefore, the second magnetic component 234 magnetically attracts the first magnetic component 233 so that the upper display surface 221 is horizontally returned to the correct position. In this embodiment, the rotating block 22 is an equilateral triangular prism structure. Three first magnetic elements 233 are embedded within the three edges of the rotating block 22. A second magnetic element 234 is located directly below the center point of the rotating block 22. When the second magnetic element 234 attracts one of the first magnetic elements 233, the first magnetic element 233 gradually rotates towards the second magnetic element 234. During this process, the magnetic attraction of the second magnetic element 234 to the first magnetic element 233 gradually increases until the first magnetic element 233 moves to its lowest point. At this time, the upper display surface 221 of the rotating block 22 is exactly horizontal. When it is necessary to switch the display surface 221, the user manually moves the rotating block 22. At this time, the magnetic attraction of the second magnetic element 234 to the first magnetic element 233 gradually decreases, while the magnetic attraction of the second magnetic element 234 to the next first magnetic element 233 gradually increases, and the above process is repeated.

[0045] Furthermore, the housing 1 includes a top cover 12 and a bottom plate 13 that fit together. The top cover 12 has a clearance opening 121 for avoiding the rotating block 22, and the bottom plate 13 has a receiving cavity 11, with the clearance opening 121 corresponding to the receiving cavity 11. The top cover 12 and the bottom plate 13 are fixedly connected by bolts, and the top cover 12 and the bottom plate 13 can be detached by bolts. It can be understood that the top cover 12 and the bottom plate 13 can also be connected by snap-fit ​​and slot-fit. The clearance opening 121 allows the user to move the rotating block 22 with their finger. In this embodiment, the clearance opening 121 is a single through hole. It can be understood that the clearance opening 121 can also be a grid-like through hole, with each through hole corresponding to each rotating block 22.

[0046] Furthermore, the housing 1 also includes two opposing first support plates 14, which are located on the two side edges of the receiving cavity 11. Each first support plate 14 has a fixing groove 141, and both ends of the rotating shaft 21 are respectively installed in the fixing groove 141. The upper cover 12 covers the upper opening of the fixing groove 141. In this embodiment, the first support plate 14 is integrally connected to the bottom wall of the receiving cavity 11. The first support plate 14 is vertically arranged, and its thickness direction is perpendicular to the vertical direction. Multiple spaced fixing grooves 141 are provided on the first support plate 14 to correspond to multiple rotating shafts 21. The fixing grooves 141 on the two first support plates 14 are aligned with each other so that both ends of the rotating shaft 21 are respectively fixed in the fixing groove 141. In this embodiment, the shape of the fixing groove 141 corresponds to that of the rotating shaft 21. The fixing groove 141 is a triangular prism structure, and an opening is provided on the side of the fixing groove 141 near the center of the receiving cavity 11 to avoid the rotating shaft 21. When the end of the rotating shaft 21 is installed in the fixing groove 141, the two surfaces of the rotating shaft 21 are in contact with the two groove walls of the fixing groove 141, and the circumferential rotation of the rotating shaft 21 is restricted. The upper cover 12 is covered by the base plate 13. Multiple limiting blocks 122 are provided on the edge of the upper cover 12 near the base plate 13. The limiting blocks 122 are aligned with the upper and lower parts of the fixing groove 141. When the upper cover 12 is threaded to the base plate 13, the limiting blocks 122 cover the upper opening of the fixing groove 141, thereby restricting the rotating shaft 21 in the fixing groove 141 from leaving the fixing groove 141 through the upper opening.

[0047] Furthermore, the housing 1 also includes two second support plates 15 located on the two side edges of the receiving cavity 11, respectively. Each second support plate 15 has a first slot 151, and the bottom wall of the receiving cavity 11 has a second slot 111 communicating with the first slot 151. The first slot 151 and the second slot 111 are used to insert and fix the partition 3. The upper cover 12 covers the upper opening of the first slot 151. The second support plate 15 is integrally connected to the bottom wall of the receiving cavity 11. The second support plate 15 is vertically arranged, and its thickness direction is perpendicular to the vertical direction. In this embodiment, the second support plate 15 is perpendicular to the first support plate 14, and the end of the second support plate 15 is connected to the end of the first support plate 14 to improve stability. Each second support plate 15 has multiple spaced first slots 151, with the first slots 151 on two second support plates 15 positioned opposite each other. The first slots 151 extend vertically from the upper end to the lower end, and the side of the first slot 151 closest to the center of the receiving cavity 11 is open to avoid obstructing the partition 3. The bottom wall of the receiving cavity 11 is also provided with multiple spaced second slots 111. Each second slot 111 is connected to two opposite first slots 151 at both ends. The partition 3 is inserted through the upper opening of the first slot 151 and slides vertically along the first slot 151 until the lower end of the partition 3 is simultaneously inserted into the second slot 111, thereby completing the installation of the partition 3 and preventing the partition 3 from shifting. Multiple limiting blocks 122 are also provided on the side edge of the upper cover 12 opposite to the second support plate 15. When the upper cover 12 is threaded to the bottom plate 13, the limiting blocks 122 cover the upper opening of the first slot 151, thereby preventing the partition 3 in the first slot 151 from detaching from the first slot 151 through the upper opening.

[0048] Furthermore, the partition 3 is perpendicular to the rotating shaft 21, and the upper end of the partition 3 has a support groove 31 for the rotating shaft 21 to be inserted into, thereby supporting the rotating shaft 21. In this embodiment, multiple partitions 3 are arranged at intervals. The partitions 3 are used to separate two adjacent rotating blocks 22, thereby preventing the adjacent rotating blocks 22 from being synchronously rotated when the user moves one of the rotating blocks 22. The partitions 3 are perpendicular to the rotating shaft 21, and multiple rotating blocks 22 are passed through each rotating shaft 21. Multiple partitions 3 are arranged between the two ends of the rotating shaft 21. The rotating shaft 21 is placed on the partitions 3 so that the partitions 3 support the rotating shaft 21, distribute the pressure at both ends of the rotating shaft 21, and prevent the rotating shaft 21 from breaking or bending due to long-term use. Multiple spaced support grooves 31 are provided on the partitions 3, and each support groove 31 corresponds to one rotating shaft 21. The support grooves 31 on two adjacent partitions 3 correspond one-to-one, so that each rotating shaft 21 can be simultaneously embedded in multiple support grooves 31 on multiple partitions 3, further improving stability.

[0049] Furthermore, the rotating block 22 includes three display surfaces 221, which are respectively set as black pieces, white pieces, and grid lines. In this embodiment, the rotating block 22 is an equilateral triangular prism structure, and the three display surfaces 221 are the same size and shape. The rotating block 22 rotates around its axis to switch the three display surfaces 221. It can be understood that the three display surfaces 221 can be respectively set as circular black pieces, circular white pieces, and grid lines, thus corresponding to the three situations on the chessboard: black pieces, white pieces, and empty spaces. The user switches between the three display surfaces 221 by moving the rotating block 22, thereby meeting the usage requirements of the integrated chessboard. It should be noted that the display surfaces 221 can also be set with other patterns or colors to meet different gameplay, and the rotating block 22 can also be set with other structures, such as hexagonal prisms.

[0050] Although the present invention has been described with reference to several typical embodiments, it should be understood that the terminology used is descriptive and exemplary, and not restrictive. Since the present invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. An integrated board, characterized by, include: The shell has a receiving cavity; A rotating component is disposed in the receiving cavity. The rotating component includes a rotating shaft, a rotating block, and a return component. The rotating shaft passes through the rotating block and is fixed to the housing. The rotating block is provided with multiple display surfaces. The rotating block rotates around the rotating shaft to switch the display surface located on the upper side. The return component is fixed to the rotating block and drives the upper display surface to return to horizontal alignment. A partition is fixed inside the receiving cavity, and the partition is located between adjacent rotating blocks.

2. The unitary board of claim 1, wherein, The rotating block has a mounting hole at its center, and the return element is a spring piece set in the mounting hole. The return element encloses and forms a rotation space for the rotating shaft to pass through.

3. The unitary board of claim 2, wherein, One end of the return component is connected to the inner wall of the mounting hole, and the other end is suspended in the air. Three return components are provided and enclose the rotation space. The rotating shaft is a triangular prism structure, and the shape of the rotation space corresponds to that of the rotating shaft.

4. The unitary board of claim 3, wherein, The return component includes a first section and a second section. The first section and the second section are connected by an arc transition. The first section is fixedly connected to the inner wall of the mounting hole, and the second section is suspended and parallel to the surface of the rotating shaft.

5. The unitary board of claim 1, wherein, The centering component is a magnetic component, which includes a first magnetic component and a second magnetic component. The first magnetic component is embedded in the corner of the rotating block, and the second magnetic component is fixed in the receiving cavity and located directly below the rotating block. Therefore, the second magnetic component magnetically attracts the first magnetic component to make the upper display surface return to a horizontal position.

6. The unitary board of claim 1, wherein, The housing includes a top cover and a bottom plate that fit together. The top cover has an opening to avoid the rotating block, and the bottom plate has a receiving cavity. The opening corresponds to the receiving cavity.

7. The unitary board of claim 6, wherein, The housing also includes two opposing first support plates, which are located on the two sides of the receiving cavity. Each of the two first support plates has a fixing groove, and the two ends of the rotating shaft are respectively installed in the fixing groove. The upper cover covers the upper opening of the fixing groove.

8. The unitary board of claim 6, wherein, The housing also includes two second support plates located on the two sides of the receiving cavity, the second support plates having a first slot, and the bottom wall of the receiving cavity having a second slot communicating with the first slot. The first slot and the second slot are for the partition to be inserted and fixed, and the top cover covers the upper opening of the first slot.

9. The unitary board of claim 1, wherein, The partition is perpendicular to the rotating shaft, and the upper end of the partition has a support groove for the rotating shaft to be inserted into, so as to support the rotating shaft.

10. The unitary board of claim 1, wherein, The rotating block includes three display surfaces, which are respectively set as black pieces, white pieces, and grid lines.

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