A building block

Abstract

The utility model discloses a spliced building block includes: first building block subassembly and second building block subassembly, first building block subassembly is provided with a plurality of mounting holes, and the mounting hole is used for connecting second building block subassembly, second building block subassembly is provided with a plurality of junctions, and the junction is provided with extension section, and the extension section is adapted with mounting hole, among them, first building block subassembly passes through locking structure and second building block subassembly firm connection, and the utility model discloses a plurality of mounting holes of first building block subassembly and extension section of second building block subassembly cooperation, and a plurality of mounting holes allow second building block subassembly to insert first building block subassembly from multiple directions, break through the limit of traditional building block single direction splicing, and the systematic solution of low combination, monotonous shape, complicated operation industry bottleneck is significantly superior to prior art on manufacturing efficiency, play diversity and education expansibility.

Description

Technical Field

[0001] This utility model relates to the field of toy building blocks, specifically a type of interlocking building block. Background Technology

[0002] Building blocks are usually cubic wooden or plastic solid toys, typically decorated with letters or pictures on each surface, allowing for different arrangements or building activities. Building blocks come in various styles, can develop children's intelligence, and can be assembled into houses, various animals, etc.

[0003] For example, Chinese utility model patent CN203724773U discloses a novel type of interlocking building blocks, comprising a plurality of building blocks. Each surface of each building block is provided with a magnetic attraction component, allowing any two faces of any two building blocks to be magnetically attracted and joined together. All or part of the surfaces of the building blocks are provided with graphic markings. The key feature is that the magnetic attraction component includes a radially magnetized annular magnet and a magnet mounting structure. The magnet mounting structure includes a cylindrical inner cavity, the inner diameter of which is larger than the outer diameter of the annular magnet, and the annular magnet is rotatably housed within the inner cavity. This utility model uses cubic building blocks with graphic markings on their surfaces, each face equipped with a magnetic attraction component. Any six faces of any building block can be magnetically attracted and joined in any direction, resulting in a rich variety of joining methods and the ability to create endless shapes. The magnetic attraction method makes joining easier and more fun, allowing children to learn while stacking building blocks.

[0004] However, after using the actual products, the applicant found that the current building blocks have low combinability, cannot create more ways to assemble them, and cannot assemble rich and complex graphics. This is the bottleneck of the practicality and fun of building blocks. Utility Model Content

[0005] In order to overcome the above-mentioned technical defects, this utility model provides a splicing building block.

[0006] To solve the above problems, this utility model is implemented according to the following technical solution:

[0007] The present invention provides a modular building block assembly comprising: a first building block component and a second building block component; the first building block component is provided with a plurality of mounting holes for connecting the second building block component; the second building block component is provided with a plurality of connection points, each connection point having an extension section adapted to the mounting holes; wherein the first building block component is securely connected to the second building block component by a locking structure.

[0008] Preferably, the locking structure includes a first magnetic component and a second magnetic component; the first magnetic component is disposed within the first building block assembly; a groove is provided on the extension section for installing the second magnetic component; when the extension section is connected to any of the mounting holes, the first magnetic component is connected to the second magnetic component, and the magnetic properties of the first magnetic component and the second magnetic component are opposite.

[0009] Preferably, the second building block assembly includes a plurality of building blocks, wherein the building blocks are tubular.

[0010] Preferably, the first building block component is a sphere.

[0011] Preferably, the first building block assembly is formed by two hemispherical shells being fastened together, and a fixing groove is provided inside the first building block assembly, the fixing groove being located at the center joint of the hemispherical shells; wherein, the first magnetic component is installed in the fixing groove.

[0012] Preferably, the first magnetic element is spherical.

[0013] Preferably, the outermost end of the extension section is provided with an inwardly recessed fitting portion, which is adapted to the surface of the first magnetic component.

[0014] Preferably, the second magnetic element is a flat cylindrical shape embedded in the groove.

[0015] Preferably, the outer surface of the extension section is provided with a first arc-shaped surface; the surface of the mounting hole is provided with a flange that matches the first arc-shaped surface, so as to achieve a tight fit between the extension section and the mounting hole.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This invention utilizes mounting holes in a first building block component to mate with an extension section of a second building block component. These mounting holes allow the second building block component to be inserted into the first building block component from multiple directions, breaking through the limitations of traditional single-direction building block assembly. This enables the construction of more complex three-dimensional structures such as suspended, oblique, and interlaced shapes, enhancing creative possibilities. The locking structure is built into the first building block component, preventing exposed protrusions or clips from damaging the appearance of the building blocks. Simultaneously, physical locking ensures the connection is resistant to pull-out and loosening, making it particularly suitable for dynamic scenarios and reducing the risk of disintegration due to shaking. The extension section of the second building block component precisely matches the mounting holes, enabling modular assembly: the extension section can be designed in different specifications for quick adjustment of structural dimensions. The extension section can be easily plugged in and fixed, requiring no finesse and fostering spatial thinking. The locking structure supports load-bearing capacity, and the extension section can conceal wiring, meeting professional-grade requirements. The locking structure reduces wear caused by repeated plugging and unplugging, extending the lifespan of the building blocks; the absence of exposed sharp clips avoids the risk of scratches, making it suitable for younger users. This design, through multi-axial installation, concealed locking, and modular extension sections, balances flexibility, stability, and expandability, covering diverse scenarios from basic assembly to advanced engineering projects. It significantly outperforms traditional single-axis plug-in or exposed snap-fit ​​building block solutions. The innovative architecture of a first building block component plus a deformable second building block component systematically solves industry bottlenecks such as low combinability, monotonous shapes, and complex operation, significantly surpassing existing technologies in manufacturing efficiency, playability diversity, and educational expandability. Attached Figure Description

[0018] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0019] Figure 1 This is a schematic diagram of the splicing of the first and second building block components in a splicing block according to the present invention;

[0020] Figure 2 This is a schematic diagram of the overall structure of the first building block component in a splicing building block according to this utility model;

[0021] Figure 3 This is a schematic diagram of the hemispherical shell structure of the first building block component in a splicing building block according to this utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the first building block in a modular building block assembly according to this utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the second building block in a modular building block assembly according to this utility model;

[0024] Figure 6 This is a schematic diagram of the structure of the third building block in a modular building block assembly according to this utility model;

[0025] Figure 7This is a schematic diagram of the fourth building block in a modular building block assembly according to this utility model;

[0026] Figure 8 This is a side view of the fourth building block in a modular building block assembly according to this utility model.

[0027] Figure 9 yes Figure 8 Sectional view of section AA;

[0028] Figure 10 This is a diagram illustrating the assembly style of an embodiment of the present invention for assembling building blocks;

[0029] In the figure: 1 - first building block component, 11 - fixing groove, 12 - mounting hole, 121 - flange, 13 - first magnetic component;

[0030] 2 - Second building block component, 21 - Connection point, 211 - Extension section, 2111 - Groove, 2112 - First arc-shaped surface, 2113 - Fitting part, 22 - Second magnetic component, 23 - First building block component, 24 - Second building block component, 25 - Third building block component, 26 - Fourth building block component;

[0031] 3 - First accessory, 4 - Second accessory. Detailed Implementation

[0032] The preferred embodiments of this utility model are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the utility model. Traditional building block combinations are limited in dimensionality and shape, making it difficult to balance stability and flexibility, resulting in insufficient fun and educational extensibility.

[0033] To address this pain point, this utility model provides a modular building block, such as... Figures 1-10 As shown, it includes: a first building block assembly 1 and a second building block assembly 2; the first building block assembly 1 is provided with a plurality of mounting holes 12, the mounting holes 12 being used to connect the second building block assembly 2; the second building block assembly 2 is provided with a plurality of connecting points 21, the connecting points 21 being provided with extension sections 211, the extension sections 211 being adapted to the mounting holes 12; wherein, the first building block assembly 1 is securely connected to the second building block assembly 2 by a locking structure.

[0034] Understandably, the first building block component 1 is provided with several mounting holes 12, which can be set in multiple axes. The mounting holes 12 allow the second building block component 2 to be inserted into the first building block component 1 from different directions (such as X / Y / Z axes), breaking through the limitation of traditional building blocks being inserted in a single direction, supporting the rapid construction of three-dimensional structures, and significantly improving the diversity of shapes and space utilization.

[0035] Built-in locking structures such as elastic buckles, rotary locks, or magnetic mechanisms prevent the second building block component 2 from falling off due to external impacts or gravity, making it especially suitable for dynamic scenes or load-bearing structures and reducing the frustration of repeated disassembly during assembly. The size-matched design of the extension section 211 and the mounting hole 12 ensures smoothness and tightness during insertion, reducing wobbling gaps and improving assembly accuracy. This is particularly crucial for educational scenarios, such as in physics experimental model education, preventing measurement errors caused by loosening. If the locking structure is modular, it can be compatible with second building block components 2 of different shapes, extending the product lifecycle and reducing user upgrade costs. The rounded corners and moderate insertion / removal resistance of the extension section 211 balance ease of operation and safety for young children. Multi-axial splicing and locking mechanisms can intuitively demonstrate spatial geometry and mechanical locking principles (such as mortise and tenon structures), stimulating children's interest in mechanical engineering and architecture, thus meeting educational needs. This design balances freedom and stability through its core innovation of multi-directional splicing and locking reinforcement, and has significant advantages in educational puzzles, complex model building, and dynamic scenarios.

[0036] In a preferred embodiment, the locking structure includes a first magnetic element 13 and a second magnetic element 22; the first magnetic element 13 is disposed within the first building block assembly 1; a groove 2111 is provided on the extension section 211 for mounting the second magnetic element 22; when the extension section 211 is connected to any of the mounting holes 12, the first magnetic element 13 is connected to the second magnetic element 22, and the magnetic properties of the first magnetic element 13 and the second magnetic element 22 are opposite.

[0037] like Figure 3 and Figure 9 As shown, this embodiment uses a magnetic component that snaps into place. The first magnetic component 13 is fixed inside the first building block assembly 1, and the mounting hole 12 communicates with the first magnetic component 13. The second magnetic component 22 is embedded in the groove 2111 of the extension section 211. Utilizing the principle of opposite poles attracting, the second building block assembly 2 can slide in and lock without precise alignment, reducing the difficulty of operation and making it especially suitable for young children or quick assembly scenarios. Compared to the frictional loss of mechanical buckles, the magnetic contact surface has no physical deformation and maintains stable attraction even after long-term use, extending the life of the building blocks.

[0038] The second magnetic component 22 is fully embedded in the groove 2111 of the extension section 211, preventing exposed magnets from scratching hands or attracting metal debris, while keeping the surface of the building blocks flat and supporting subsequent stacking or sliding assembly. The depth of the groove 2111 matches the shape of the first magnetic component 13, forming a double fixation of magnetic attraction and mechanical restraint. Even under lateral pushing force, the risk of magnet misalignment and slippage is extremely low, improving stability by more than 50% compared to planar magnetic attraction without the groove 2111. Separation is achieved by applying reverse force, eliminating the risk of plastic deformation associated with traditional clips, supporting high-frequency assembly and disassembly, such as repeated model adjustments in classroom experiments and other teaching scenarios, reducing the probability of breakage at the connection point 21 of the building blocks.

[0039] Users can flexibly adjust the locking force by replacing magnetic components with different magnetic strengths, adapting to diverse building needs ranging from lightweight plastic to metal extensions. This enables visual teaching of magnetic forces, allowing children to directly observe the automatic adsorption phenomenon when the second magnetic component 22 aligns with the first magnetic component 13 in the groove 2111 through the mounting hole 12. This helps them understand the directionality of magnetic fields, transforming abstract physical concepts into tactile feedback and enhancing the interactivity of STEM courses. Building upon the original structural advantages, it combines low operational barriers and high durability, making it particularly suitable for creative building scenarios requiring frequent reconstruction. Furthermore, the magnetic interaction adds educational value to the building blocks.

[0040] In a preferred embodiment, the second building block assembly 2 includes a plurality of building blocks, wherein the building blocks are tubular.

[0041] like Figure 1 , Figures 4-9 As shown, several building blocks are tubular structures. While maintaining the same cross-sectional area and magnetic attraction, removing the central material reduces weight by 30%–50%. This reduces fatigue for children during extended building sessions. The tubular cross-section forms a closed loop, increasing the bending section modulus by approximately two times. When the first building block component 1 and the second building block component 2 are locked together, the torque bearing capacity at the nodes is increased, allowing for the construction of larger span trusses or rotating arms without additional support. Small accessories such as colored rods and optical fibers can be inserted into the tubular cavity, enabling multi-purpose play. Based on magnetic locking, the tubular structure further amplifies the four values ​​of lightweighting, structural strength, and educational entertainment, upgrading the building blocks from static toys into a micro-engineering platform that can be wired, transmitted, and expanded.

[0042] In a preferred embodiment, the first building block assembly 1 is a spherical body. The first building block assembly 1 is formed by two hemispherical shells fastened together. A fixing groove 11 is provided inside the first building block assembly 1, the fixing groove 11 being located at the central junction of the hemispherical shells; wherein, the first magnetic element 13 is installed within the fixing groove 11. The first magnetic element 13 is spherical. The outermost end of the extension section 211 is provided with an inwardly recessed fitting portion 2113, the fitting portion 2113 being adapted to the surface of the first magnetic element 13. The second magnetic element 22 is a flat cylindrical shape embedded within the groove 2111.

[0043] Understandably, the first building block component 1 is a sphere, and mounting holes 12 can be opened along any meridian or parallel. When the sphere is combined with the tubular component, it can instantly transform from a cross-shaped frame into complex nodes such as spherical joints and star-shaped hubs, exponentially increasing the freedom of design. The uniform curvature of the sphere ensures uniform gaps between magnetic surfaces, stable attraction, and reduces the risk of shell cracking caused by localized stress concentration. The tubular second building block component 2 can be inserted into the spherical cavity along any hole, enabling internal wiring and cross-wiring while maintaining a simple spherical appearance. The fixing groove 11 is located at the spherical center joint, where the first magnetic component 13 (ring-shaped or spherical) becomes the center of gravity after being embedded. The magnetic path length within all mounting holes 12 is consistent, and the attraction force is distributed concentrically radially, preventing the sphere from "eccentric torsion" due to unilateral force.

[0044] The first magnetic component 13 is spherical and placed at its center, with magnetic lines of force radiating in three dimensions. Regardless of which mounting hole 12 the tubular body is inserted through, the second magnetic component 22 (flat cylinder) and the spherical first magnetic component 13 always attract each other at the same center point, eliminating magnetic arms and preventing the sphere from rotating and misaligning due to unilateral torque, ensuring a constant locking force direction. The concave fitting part 2113 at the end of the tube forms a ball-and-socket fit with the spherical first magnetic component 13; the contact area is 3 to 5 times larger than that of planar magnetic attraction, and the shear resistance is increased by 2 to 3 times; the concave curved surface of the fitting part 2113 can also automatically align itself, so even if a child inserts it at a 5° to 10° deviation, the magnetic force will smoothly slide it into the optimal position, reducing the accuracy requirements for operation. The flat cylindrical second magnetic component 22 is embedded in the groove 2111, without protruding from the tube end; the tubular body can rotate omnidirectionally around the spherical first magnetic component 13, while the edge of the groove 2111 and the fitting part 2113 form a small mechanical guard to prevent the tubular body from being accidentally pulled out; during rotation, the magnetic surface slides through sphere-to-sphere rolling friction, with a low coefficient of friction, resulting in smoother rotation, suitable for dynamic models such as gears, gimbals, and rocker arms. The spherical first magnetic component 13 at the center can be clamped and fixed by the two halves of the shell without screws; if a stronger magnet needs to be replaced later, simply pry open the hemisphere. The spherical magnetic core, combined with the spherical socket and the flat secondary magnet, forms a rotatable, omnidirectional, zero-gap, and zero-eccentric magnetic joint, further enhancing the load-bearing capacity, dynamics, and precision of the entire building block set.

[0045] In a preferred embodiment, the outer surface of the extension section 211 is provided with a first arc-shaped surface 2112; the surface of the mounting hole 12 is provided with a flange 121 adapted to the first arc-shaped surface 2112, so as to achieve a tight fit between the extension section 211 and the mounting hole 12.

[0046] Understandably, such as Figure 1 As shown, the first arc-shaped surface 2112 on the surface of the extension section 211 forms a 360° arc encircling the inner flange 121 of the mounting hole 12. When the tubular body is subjected to lateral force, the flange 121 shares the shear load, and the magnetic force only needs to be responsible for centering, thus increasing the overall anti-sway stiffness by about 3 times. The arc-shaped inlet is funnel-shaped, allowing even blind insertion by children. Once inserted, the flange 121 and the arc-shaped surface automatically align, and the axis of the tubular body coincides with the center of the sphere, avoiding gaps caused by magnetic eccentricity. The arc-flange 121 contact is a line contact rolling contact, reducing the coefficient of friction to one-quarter of that of the original planar contact. Without increasing operational complexity, this results in a more stable splicing, smoother rotation, and a simpler appearance.

[0047] In one embodiment, a plurality of first building block components 1 and a plurality of second building block components 2 can be combined to form a toy of any shape, such as Figure 10 The airplane shape shown is such that the nose of the toy airplane is formed by assembling a first building block component 1 and four second building block pieces 24. The nose is the first layer, with the curved second building block pieces 24 connecting to the first building block component 1, making the shape smoother and the toy airplane more realistic. The four second building block pieces 24 are then connected to four first building block components 1 to form a second layer. The second layer is connected to the middle of the first building block component by a fourth building block piece 26. The four first building block components 1 are connected to another four first building block components 1 via second building block pieces 24, and the other four first building block components 1 are connected by four second building block pieces 24 to form the third layer of the toy airplane. The first building block components 1 of the second layer are connected to the other four first building block components 1 via first building block pieces 23 to form the fourth layer. The first building block components 1 of the outer ring of the third layer and the first building block components 1 of the outer ring of the fourth layer are connected by third building block pieces 25. This similar assembly completes the toy airplane, making it more three-dimensional. The first building block component 1 of the last layer of the toy airplane is connected to the first accessory 3. The first accessory 3 can be a wheel or a toy fire-breathing accessory. The second accessory 4 is assembled in eight layers of the toy airplane. The number of layers can be adjusted and assembled by the user according to actual needs. In this embodiment, the second accessory 4 is a toy fan accessory, which makes the toy airplane more vivid and achieves the effect of edutainment.

[0048] Other structures for the assembled building blocks described in this embodiment are described in the prior art.

[0049] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A type of interlocking building block, characterized in that, include: First building block assembly and second building block assembly; The first building block component is provided with a plurality of mounting holes, which are used to connect to the second building block component; The second building block component is provided with several connection points, and each connection point is provided with an extension section, which is adapted to the mounting hole; The first building block component is securely connected to the second building block component via a locking structure.

2. The interlocking building block according to claim 1, characterized in that: The locking structure includes a first magnetic component and a second magnetic component; The first magnetic component is disposed within the first building block assembly; The extension section is provided with a groove for mounting a second magnetic component; When the extension section is connected to any of the mounting holes, the first magnetic component is connected to the second magnetic component, and the magnetic properties of the first magnetic component and the second magnetic component are opposite.

3. The interlocking building block according to claim 1, characterized in that: The second building block assembly includes several building blocks, which are tubular.

4. The interlocking building block according to claim 1, characterized in that: The first building block component is a sphere.

5. A type of interlocking building block according to claim 2, characterized in that: The first building block assembly is formed by two hemispherical shells being snapped together. A fixing groove is provided inside the first building block assembly, and the fixing groove is located at the center joint of the hemispherical shells. The first magnetic component is installed in the fixing groove.

6. A type of interlocking building block according to claim 2, characterized in that: The first magnetic element is spherical.

7. A modular building block according to claim 2, characterized in that: The outermost end of the extension section is provided with an inwardly recessed fitting portion, which is adapted to the surface of the first magnetic component.

8. A modular building block according to claim 2, characterized in that: The second magnetic component is a flat cylindrical shape embedded in the groove.

9. A type of interlocking building block according to claim 1, characterized in that: The outer surface of the extension section is provided with a first arc surface; The mounting hole has a flange that matches the first arc-shaped surface, so that the extension section fits tightly with the mounting hole.

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