Splicing type symbol building block particle and building block structure

By designing loosely coupled building symbol building block particles, using the jagged groove structure of the solid part and the hollow part, the problems of single building block toy building and high processing accuracy are solved, flexible splicing and diversified building are achieved, and user experience is improved.

CN223287623UActive Publication Date: 2025-09-02SHANTOU CENTURY TOYS CO LTD
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Patent Information

Application Number
CN202422766930.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-13
Publication Date
2025-09-02
Estimated Expiration
2034-11-13

AI Technical Summary

Technical Problem

The existing building block toys have a single build method, which leads to weak interest and high processing accuracy requirements, making it easy to have loose connections or difficult to plug in.

Method used

The building-type symbol building block particles are designed, and a symbol-shaped substrate composed of solid parts and hollow parts are used to achieve loose fit connections through the clamping grooves and connectors, ensuring moderate gaps and uniform directions, and increasing the contact area.

Benefits of technology

It improves the playability and flexibility of building blocks, enhances compatibility and adaptability, and realizes modular design, which facilitates rapid splicing and disassembly to meet diverse building needs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of building block toys, and discloses a splicing type symbol building block particle and a building block structure, the building block particle comprises two opposite symbol-shaped base plates and a connecting piece for connecting the two symbol-shaped base plates, and any two side walls of the symbol-shaped base plates and the connecting piece are vertical or parallel. Each symbol-shaped base plate is composed of a solid part and a hollow part, the width between two opposite side walls of each hollow part is d1, the sections of the solid parts and the sections of the connecting pieces are the same, the widths between the two opposite side walls in four side walls which are connected end to end around the sections are d2 and d3 respectively, a clamping groove is formed between the two symbol-shaped base plates, and the width of the clamping groove is d4; wherein d2 is greater than or equal to 0.85 * d4 and less than or equal to 0.99 * d4; 0.85 * d4 < = d3 < = 0.99 * d4; d1 < = k * d4, and k is an integer greater than or equal to 1. The splicing type symbol building block particles in various symbol shapes are arranged, a user can select the building block particles to be combined, the solid part of the symbol-shaped base plate can be spliced with the clamping grooves of other building block particles in a matched mode, and the splicing mode is flexible and diversified.
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Description

Technical Field

[0001] The utility model relates to the technical field of building block toys, in particular to a kind of assembling type symbol building block particles and a building block structure. Background Art

[0002] Since their introduction, building block toys have been widely loved by children and adults due to their easy-to-play and reusable nature, becoming a classic toy that fosters hands-on skills and imagination. Currently, building block toys, such as LEGO, almost all achieve their structure through tightly interlocking components, making them the top choice for children to build toys and construct structures. As building block play becomes increasingly diverse, people are placing higher demands on ease of use, comfort, and functionality.

[0003] Currently, building block toys on the market generally rely on friction between the blocks to achieve a tight fit and secure attachment. To ensure a secure connection between the blocks, the blocks are often designed with multiple plug-in structures on their surfaces, allowing for connection in various directions. Each block requires precise insertion and removal points to ensure strong stability and compatibility during assembly, allowing users to freely choose how the blocks connect and achieve a stable structure.

[0004] However, existing tight-fit designs require high precision in the machining of building blocks. Even the slightest deviation can lead to poor fit. Too little friction can lead to loose connections, while too much can make interlocking difficult. This tight fit between blocks can increase operational complexity and hinder the user experience. Furthermore, achieving interlocking functionality often requires compromises in the design of the building blocks, limiting innovation in their design. Furthermore, existing building block structures can only connect at pre-designed points, resulting in relatively low flexibility and failing to meet user demands for diverse and flexible building methods. Summary of the Invention

[0005] The utility model provides a kind of building block particles and a building block structure, which can solve the technical problem that the existing building block building method is relatively single, resulting in the building block building structure itself having less interest.

[0006] In order to solve the above technical problems, the utility model provides a building block particle of symbolic shape, comprising two symbol-shaped substrates arranged opposite to each other and a connector connecting the two symbol-shaped substrates, wherein any two side walls of the symbol-shaped substrate and the connector are perpendicular or parallel, the symbol-shaped substrate is composed of a solid portion and a hollow portion, the width between the opposite side walls of the hollow portion is d1, the solid portion and the connector have the same cross-section, and the width between the opposite side walls of the four end-to-end connected side walls around the cross-section is d2 and d3 respectively, a snap-fit ​​groove is formed between the two symbol-shaped substrates, and the width of the snap-fit ​​groove is d4; wherein,

[0007] 0.85×d4≤d2≤0.99×d4;

[0008] 0.85×d4≤d3≤0.99×d4;

[0009] d1≤k×d4, where k is an integer greater than or equal to 1.

[0010] Furthermore, the connection between the hollow portion and the adjacent two side walls of the clamping groove is a right-angle transition.

[0011] Furthermore, each of the assembled symbol building blocks is provided with one to three connecting pieces.

[0012] Furthermore, when one of the building block symbol building blocks is provided with one connecting piece, the connecting piece is provided in the middle of the two symbol-shaped substrates;

[0013] When two or three connecting pieces are provided on one of the building block symbol particles, the connecting pieces are arranged parallel or perpendicular to each other.

[0014] Furthermore, each side of the solid portion is provided with a chamfered corner, and each side of the connecting member perpendicular to the solid portion is also provided with the chamfered corner.

[0015] On the other hand, the present invention also provides a modular symbol building block structure, which is assembled from the modular symbol building block particles described in any one of the items.

[0016] Compared with the prior art, the modular symbol building block particles and building block structure of the present invention have the following beneficial effects:

[0017] The embodiment of the present invention is to provide various symbol-shaped substrates including a solid portion and a hollow portion, and a snap-fit ​​groove with a width of d4 is formed between the two symbol-shaped substrates. The cross-sectional widths between the solid portion of the symbol-shaped substrate and the opposite side walls of the connector are d2 and d3. Since the widths of d2 and d3 are slightly smaller than the width d4 of the snap-fit ​​groove, and the width d1 of the opposite side walls of the hollow portion is less than or equal to an integer multiple of the width d4 of the snap-fit ​​groove, in the process of using the building block particles for assembly, when the solid portion of the symbol-shaped substrate is inserted into the snap-fit ​​groove or placed in the hollow portion, the side walls of the solid portion of each building block particle will not be tightly stuck, but a moderate gap will be maintained, allowing each building block particle to be inserted or pulled out more easily, forming a loose-fit connection effect. This slight size difference avoids the looseness and instability between the building block particles, so that the building block particles will not fall out easily during the assembly process, thereby improving the playability and flexibility of the building blocks, enhancing the compatibility and adaptability of the building block particles during assembly, ensuring that different particles can maintain a unified matching standard in design, and ensuring the stability of the loose-fit connection between the building block particles. At the same time, by designing any two side walls of the symbol-shaped substrate and the connector to be vertical or parallel, the building blocks can maintain a uniform direction when connected, increasing the contact area of ​​the connecting surfaces of the building blocks, so that different building blocks can fit freely in any direction without the need for additional alignment or rotation, thereby achieving a modular design and facilitating quick assembly or disassembly by users. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of the assembling symbol building block particles in the shape of the character 0 provided by an embodiment of the present invention;

[0019] Figure 2 This is a schematic structural diagram of a 1-character-shaped building block particle provided by an embodiment of the present invention;

[0020] Figure 3 This is a schematic structural diagram of the 2-character-shaped building block symbol particles provided by an embodiment of the present invention;

[0021] Figure 4 This is a schematic structural diagram of the three-character-shaped building block particles provided by an embodiment of the present invention;

[0022] Figure 5 This is a schematic structural diagram of the 4-character shaped building block particles provided by an embodiment of the present invention;

[0023] Figure 6 This is a schematic structural diagram of 5-character-shaped building block particles provided by an embodiment of the present invention;

[0024] Figure 7This is a schematic structural diagram of 6-character shaped building block particles provided by an embodiment of the present invention;

[0025] Figure 8 This is a schematic structural diagram of the 7-character shaped building block particles provided by an embodiment of the present invention;

[0026] Figure 9 This is a schematic structural diagram of 8-character shaped building block particles provided by an embodiment of the present invention;

[0027] Figure 10 This is a schematic structural diagram of 9-character shaped building block particles provided by an embodiment of the present invention;

[0028] Figure 11 This is a schematic structural diagram of the + character-shaped building block particles provided by an embodiment of the present invention;

[0029] Figure 12 This is a structural diagram of the character-shaped building block particles provided by an embodiment of the present invention;

[0030] Figure 13 This is a schematic structural diagram of the ÷ character-shaped building block particles provided by an embodiment of the present invention;

[0031] Figure 14 It is a structural schematic diagram and three views of the front, side and top view of the first building case of the building symbol building block structure provided by the embodiment of the utility model;

[0032] Figure 15 It is a structural diagram and three views of the front, side and top view of the second building case in the building symbol building block structure provided by the embodiment of the utility model;

[0033] Figure 16 It is a structural schematic diagram and three views of the front, side and top view of the assembly case three in the assembly symbol building block structure provided by the embodiment of the present invention.

[0034] In the figure, 10 is a symbol-shaped substrate; 11 is a solid portion; 12 is a hollow portion; 13 is a snap-fit ​​groove; 14 is a groove; 20 is a connector. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings and embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] In the description of the present invention, it should be noted that directional words, such as the terms "middle", "upper", "lower", "inside", "outside", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific protection scope of the present invention.

[0037] In this utility model, unless otherwise specified or limited, the terms "assemble," "connect," and "assemble" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection; direct connection, connection through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0038] like Figure 1-13 As shown, the embodiment of the present invention provides a building block particle of symbolic shape, comprising two symbol-shaped substrates 10 arranged opposite to each other and a connector 20 connecting the two symbol-shaped substrates 10, wherein any two side walls of the symbol-shaped substrate 10 and the connector 20 are perpendicular or parallel, the symbol-shaped substrate 10 is composed of a solid portion 11 and a hollow portion 12, the width between the opposite side walls of the hollow portion 12 is d1, the solid portion 11 and the connector 20 have the same cross-section, and the width between the opposite side walls of the four end-to-end connected side walls around the cross-section are d2 and d3 respectively, a snap-fit ​​groove 13 is formed between the two symbol-shaped substrates 10, and the width of the snap-fit ​​groove 13 is d4; wherein,

[0039] 0.85×d4≤d2≤0.99×d4;

[0040] 0.85×d4≤d3≤0.99×d4;

[0041] d1≤k×d4, where k is an integer greater than or equal to 1.

[0042] In the embodiment of the present invention, various symbol-shaped substrates 10 are provided, including a solid portion 11 and a hollow portion 12. A snap-fit ​​groove 13 with a width of d4 is formed between the two symbol-shaped substrates 10. The cross-sectional widths between the solid portion 11 of the symbol-shaped substrate 10 and the opposite side walls of the connector 20 are d2 and d3. Since the widths of d2 and d3 are slightly smaller than the width d4 of the snap-fit ​​groove 13, and the width d1 of the opposite side walls of the hollow portion 12 is less than or equal to an integer multiple of the width d4 of the snap-fit ​​groove 13, when the building blocks are used for building, the solid portion 11 of the symbol-shaped substrate 10 is inserted into the snap-fit ​​groove. When the 13 or 14 blocks are placed in the hollow portion 12, the side walls of the solid portion 11 of each building block particle will not be tightly stuck, but a moderate gap is maintained, allowing each building block particle to be relatively easily inserted or removed, forming a loose fit connection effect. This slight size difference avoids the looseness and instability between the building block particles, so that the building block particles will not easily fall out during the splicing process, improving the playability and flexibility of the building blocks, enhancing the compatibility and adaptability of the building block particles when assembling, ensuring that different particles can maintain a unified matching standard in design, and ensuring the stability of the loose fit connection between the building block particles. At the same time, by designing any two side walls of the symbol-shaped substrate 10 and the connector 20 to be vertical or parallel, the building block particles can maintain a unified directionality when connected, increasing the contact area of ​​the building block particle connection surface, so that different building block particles can freely match in any direction without additional alignment or rotation, thereby achieving a modular design and facilitating quick splicing or disassembly by users.

[0043] It should be noted that by setting the width d4 of the engaging groove 13 slightly larger than the widths d2 and d3 between the opposite side walls of the four end-to-end connected side walls surrounding the cross-section of the solid portion 11 and the connecting portion, excessive friction is avoided between the symbol building blocks during assembly, leaving a certain amount of room for movement. This room provides a moderate amount of slack, making it easier to insert or remove the building blocks during assembly, thus forming a loose-fit connection.

[0044] By rationally designing the dimensions of the snap-in slot 13, the connector 20, and the solid portion 11, a loose fit can be achieved between the solid portion 11 and the snap-in slot 13, and between the solid portion 11 and the hollow portion 12 on various assembling symbol building block particles, resulting in a more flexible assembly experience and an easier disassembly. Loose fit is a common connection method in mechanical assembly, which refers to retaining a certain gap at the connection between two parts, so that the contact between the parts is relatively loose, rather than tightly fitting. Due to this design, the two parts have a certain degree of mobility after assembly, and can be slightly rotated, slid, or swung, making assembly and disassembly easier. The connection between the basic components of each symbol shape has a certain degree of looseness, and is not tightly fixed together, but retains a tiny gap, allowing the building block particles to achieve a certain degree of rotation, swinging, and adjustment after assembly. This connection method does not require additional tools for assembly and disassembly, and the building block particles can be easily disassembled and reassembled, thereby improving flexibility and durability. The loose-fit connection structure not only increases the diversity and freedom of assembly, but also enhances the spatial logic and educational effect of the building blocks. It is especially suitable for children to train their creativity and hands-on ability.

[0045] like Figure 1-13 As shown, in an optional embodiment of the present invention, the connection between the hollow portion 12 and the adjacent two side walls of the clamping groove 13 is a right-angle transition.

[0046] Specifically, the right-angle transition design enables the hollow portion 12 and the snap-in groove 13 to form a flat and tight contact surface when spliced, avoiding the problem of insufficient contact that may be caused by obtuse or acute angle designs. This structure optimizes the matching contact area of ​​each building block particle, thereby improving the stability of the splicing and making the building block structure more solid. The right-angle transition brings a clear sense of lines, making the overall structural outline after assembly more distinct and concise, presenting a more modern and clean visual effect. Compared with the transition method of obtuse or acute angles, the right-angle transition can highlight the shape of the building block particles, making the assembled work appear more three-dimensional and beautiful, meeting the user's requirements for exquisite appearance. The right-angle transition also ensures that the building block particles will not slide during the assembly and adjustment process, which helps users to control the position more accurately when placing the building blocks. Especially in complex splicing, the right-angle design makes the interaction between particles more stable and controllable.

[0047] like Figure 1-13 As shown, in an optional embodiment of the present invention, each building block of symbolic building blocks is provided with one to three connecting pieces 20 .

[0048] Specifically, by designing multiple connectors 20 on each building block, users can choose different connection methods as needed, increasing the connection angles and combinations between building blocks. Multiple connectors 20 can form multi-directional connections, allowing building blocks to be freely spliced ​​in three-dimensional space, making it more suitable for building complex structures. Users can use different numbers and positions of connectors 20 to achieve a more stable frame structure or support points, thereby improving the stability and scalability of the entire building block. This flexibility allows for a richer variety of splicing forms, making the building block more diverse in shape and function, meeting the creative needs of users.

[0049] like Figure 1-13 As shown, in an optional embodiment of the present invention, when a connecting member 20 is provided on a building block particle of a symbol, the connecting member 20 is provided in the middle of the two symbol-shaped substrates 10;

[0050] When two or three connecting pieces 20 are provided on a building block particle of a building symbol, the connecting pieces 20 are provided in parallel or perpendicular to each other.

[0051] Specifically, when the building block has only one connector 20, the connector 20 is set in the middle of the symbol-shaped substrate 10, and the two symbol-shaped substrates 10 are symmetrically arranged at both ends of the connector 20, which helps to achieve overall balance. This layout allows the building block particles to distribute weight symmetrically when spliced, avoiding tilting or leaning to one side, thereby improving the stability of the structure. This design is particularly suitable for single-connection scenarios, so that each building block particle remains stable when bearing or building. When two or three connectors 20 are set on the building block particles, these connectors 20 are arranged in parallel or vertically, which helps to disperse stress in different directions and make the structure more solid. Parallel arrangement facilitates the construction of linear or continuous structures, while vertical arrangement is suitable for building three-dimensional or frame-like structures. Whether parallel or vertical, this arrangement allows the building block particles to obtain higher support force in all directions, adapting to more diverse assembly needs.

[0052] It should be noted that this layout design provides greater building flexibility. Users can create multi-layered splicing effects by choosing parallel or vertical connection methods. This flexibility not only enriches the building blocks' building forms, but also increases the stability and security of the connections between the components, allowing complex structures to remain stable even when spliced ​​in multiple directions.

[0053] The symbol shape substrate 10 can be selected to include Arabic numerals and mathematical operation characters. The Arabic numeral shape substrates can include the shapes of 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9; and the mathematical operation character substrates can include the shapes of +, -, and ÷.

[0054] By designing base plates in the shape of Arabic numerals 0 to 9 and mathematical operation symbols +, -, and ÷, users can use these building blocks not only for building block structures but also for teaching basic numbers and operations. This allows users to construct more diverse graphics and expressions. These symbol base plates are particularly useful for creating rich creative expressions when building mathematical expressions or number combinations. Users can use these symbol base plates to build formulas, arrange numbers, and more, adding variety and fun to building block play. This diverse building option stimulates user creativity and makes the building process more engaging.

[0055] Among them, for the mathematical operation character substrate, the + character shape substrate rotated 90° can be regarded as a multiplication: × character shape substrate, and the two - character shape substrates arranged parallel to each other can be regarded as an equal sign: = character shape substrate. In summary, there are thirteen types of assembling symbol building block particles, namely, building block particles in the shape of characters 0 to 9 and three mathematical operation character shapes of +, -, and ×. Users can freely combine different Arabic numeral character shapes and mathematical operation character shape building block particles to create a variety of assembling creations, which not only increases the diversity of building block gameplay, but also provides space for personal exploration and creativity. Whether it is a simple formula or a complex structure, users can enhance their logical and creative expression skills in this way. It should be emphasized that in the design of the symbol shape substrate 10 of the optional embodiment of the present utility model, in addition to Arabic numerals and mathematical operator shapes, it can also be designed into a variety of character shapes such as Chinese characters, foreign languages, and pinyin. All other embodiments obtained by this extended design without creative labor are within the scope of protection of the present utility model.

[0056] like Figure 1-13 As shown, in an optional embodiment of the present invention, each side of the solid portion 11 is provided with a rounded corner, and each side of the connecting member 20 vertically connected to the solid portion 11 is also provided with a rounded corner.

[0057] Specifically, by providing rounded corners on each side of the solid portion 11 and the connector 20, the solid portion 11 is less likely to get stuck or blocked when inserted into the snap-in slot 13, thereby providing a smoother assembly experience. This allows the gravity of the building block particles to be more evenly transferred to the main material of the building block during assembly, rather than concentrating on friction to maintain structural stability. This effectively alleviates stress concentration at the edges, disperses local forces, and reduces the risk of material fatigue and loss when the building block is inserted, removed, or loaded. Through this rounded corner design, each building block particle can achieve a non-frictional, stable connection during assembly, maintaining structural stability, simplifying operation, and improving safety, resulting in a more convenient, durable, and aesthetically pleasing assembly experience.

[0058] In addition, grooves 14 can be optionally provided on the side walls of the entity portion 11 and the connector 20. By providing grooves 14 on the side walls of the entity portion 11 and the connector 20, the wall thickness can be properly controlled, which not only reduces molding problems caused by insufficient material fluidity during the injection molding process, but also avoids shrinkage of the plastic parts due to excessive injection molding wall thickness, thereby improving production efficiency and product quality. It can also enrich the shape of the building block particles, effectively reduce the overall weight of the building block particles, and enhance the overall appearance and ease of operation. The design of the grooves 14 on the side walls of the entity portion 11 and the connector 20 significantly enhances the functionality and practicality of the modular symbol building block particles by improving aesthetics, optimizing the injection molding process, and reducing weight. This design concept not only meets market demand, but also provides a guarantee for the sustainable development of the product.

[0059] like Figure 14 、 Figure 15 and Figure 16 As shown, the present invention provides an assembly case of some assembled symbol building block structures to further illustrate the coordination effect of the assembled symbol building block particles provided by the present invention.

[0060] like Figure 14 As shown, Case 1 is a mecha.

[0061] The mecha in Case 1 uses the following assembly symbol building blocks: 3 building blocks in the shape of the character 0, 1 building block in the shape of the character 1, 3 building blocks in the shape of the character 3, 1 building block in the shape of the character 4, 6 building blocks in the shape of the character 5, 2 building blocks in the shape of the character 8, 2 building blocks in the shape of the character 9, 4 building blocks in the shape of the character +, 4 building blocks in the shape of the character - and 2 building blocks in the shape of the character ÷ to assemble into the shape of the mecha.

[0062] like Figure 15 As shown, Case 2 is a sword.

[0063] The sword in Case 2 is made of the following symbolic building blocks: 5 building blocks in the shape of the character 0, 2 building blocks in the shape of the character 2, 4 building blocks in the shape of the character 3, 4 building blocks in the shape of the character 5, 1 building block in the shape of the character 6, 4 building blocks in the shape of the character 7, 5 building blocks in the shape of the character 8, 4 building blocks in the shape of the character 9, 2 building blocks in the shape of the character + and 11 building blocks in the shape of the character - to form the shape of a sword.

[0064] like Figure 16 As shown, Case 3 is a duck.

[0065] The duck in Case 3 uses the following building blocks: 1 building block in the shape of the character 0, 2 building blocks in the shape of the character 1, 1 building block in the shape of the character 3, 3 building blocks in the shape of the character 4, 2 building blocks in the shape of the character 7, 3 building blocks in the shape of the character - and 1 building block in the shape of the character ÷ to form the shape of a duck.

[0066] The present invention is a modular symbol building block particle. The symbol shape substrate 10 has a variety of symbol shape types. This design is to achieve a richer assembly combination effect. When assembling the modular symbol building block particle structure, only two of a certain number of all symbol shape modular symbol building block particles need to be selected to achieve an effective assembly combination.

[0067] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and replacements can be made without departing from the technical principles of the present invention. These improvements and replacements should also be regarded as the scope of protection of the present invention.

Claims

1. A modular symbol building block particle, characterized in that: It comprises two symbol-shaped substrates arranged opposite to each other and a connecting piece connecting the two symbol-shaped substrates, wherein any two side walls of the symbol-shaped substrate and the connecting piece are perpendicular or parallel, the symbol-shaped substrate is composed of a solid portion and a hollow portion, the width between the two opposite side walls of the hollow portion is d1, the solid portion and the connecting piece have the same cross-section, and the width between the two opposite side walls of the four end-to-end connected side walls around the cross-section is d2 and d3 respectively, and a snap-fit ​​groove is formed between the two symbol-shaped substrates, and the width of the snap-fit ​​groove is d4; wherein, 0.85×d4≤d2≤0.99×d4; 0.85×d4≤d3≤0.99×d4; d1≤k×d4, where k is an integer greater than or equal to 1.

2. The assembling symbol building block particles according to claim 1, characterized in that: The connection between the hollow portion and the adjacent two side walls of the clamping groove is a right-angle transition.

3. The assembling symbol building block particles according to claim 1, characterized in that: Each of the assembled symbol building blocks is provided with one to three connecting pieces.

4. The assembling symbol building block particles according to claim 3, characterized in that: When one of the building block symbol particles is provided with one connecting piece, the connecting piece is provided in the middle of the two symbol-shaped substrates; When two or three connecting pieces are provided on one of the building block symbol particles, the connecting pieces are arranged parallel or perpendicular to each other.

5. The assembling symbol building block particles according to claim 1, characterized in that: Each side of the entity portion is provided with a chamfered corner, and each side of the connecting member vertically connected to the entity portion is also provided with the chamfered corner.

6. A modular symbol building block structure, characterized by: The invention is formed by assembling the assembling symbol building block particles according to any one of claims 1 to 5.