Magnetic attraction building block

Abstract

The magnetic attraction building block comprises a shell, two cover plates and a plurality of magnetic pieces. Wherein the shell comprises at least three integrally-formed side walls, and a containing cavity with openings in the two ends is defined by the multiple side walls; a connecting corner part is formed at the connecting part of the two adjacent side walls; the inner wall faces of the two ends, close to the two openings, of the connecting corner are each provided with a bearing plate. The two cover plates respectively cover the two openings; the wall face, facing the containing cavity, of each cover plate is convexly provided with a plurality of surrounding pieces opposite to the multiple connecting corners, and the surrounding pieces are arranged between the cover plates and the bearing plates adjacent to the cover plates. A containing space is defined by the two adjacent side walls, the enclosure piece, the cover plate and the bearing plate adjacent to the cover plate; the number of the magnetic parts is in one-to-one correspondence with the number of the containing spaces, and each magnetic part is arranged in one containing space in a turnover mode. Therefore, the assembling steps are simplified, the assembling difficulty is reduced, and the assembling efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of building blocks, and in particular to a magnetic building block. Background Technology

[0002] Magnetic building blocks are toys that allow children to build various three-dimensional shapes, helping to stimulate their imagination and improve their hand-eye coordination. Through magnetic force, these blocks can be stacked at multiple angles, especially in staggered configurations, and are easy to disassemble and reassemble, providing children with a more flexible and creative play experience.

[0003] However, to ensure the stability of the magnetic blocks' function and structure when stacked, their structure is designed with considerable precision. Furthermore, the small size of the magnetic blocks increases the difficulty of the assembly process and reduces assembly efficiency.

[0004] The above content is only used to assist in understanding the technical solution of the utility model and does not represent an admission that the above content is prior art. Utility Model Content

[0005] In view of the above problems, this utility model proposes a magnetic building block, which aims to solve the technical problems of high assembly difficulty and low assembly efficiency of magnetic building blocks.

[0006] To achieve the above objectives, the magnetic building blocks proposed in this utility model include a shell, two cover plates, and multiple magnetic components.

[0007] The housing includes at least three integrally formed sidewalls, which together form a cavity with openings at both ends; a connecting corner is formed at the junction of two adjacent sidewalls; and a support plate is provided on the inner wall surface of each connecting corner adjacent to the two openings.

[0008] Two cover plates respectively cover the two openings; each cover plate has a plurality of enclosure members protruding from the wall facing the cavity and respectively arranged opposite to the plurality of connecting corners, the enclosure members being disposed between the cover plate and the adjacent support plate; the two adjacent side walls, the enclosure members, the cover plate, and the support plate adjacent to the cover plate enclose and form an accommodating space;

[0009] The number of magnetic components corresponds one-to-one with the number of accommodating spaces, and each magnetic component can be flipped and placed in one of the accommodating spaces.

[0010] Furthermore, the sidewalls and / or the cover plate are thinned in the area corresponding to the accommodating space.

[0011] Furthermore, the magnetic building block also includes a support member extending along the orientation of the opening, the support member being disposed between the two support plates, and both ends of the support member abutting against the two support plates respectively.

[0012] Furthermore, the support member includes a plurality of support protrusions, and each of the connecting corner portions has one support protrusion on each of its two adjacent sidewalls.

[0013] In one embodiment, the sidewall is thinned to form a thin-walled region corresponding to the accommodating space; other regions on the sidewall form thick-walled regions; each thick-walled region of the sidewall is provided with at least two reinforcing ribs adjacent to the thin-walled region, the reinforcing ribs extending along the opening direction to abut against the inner surface of the cover plate.

[0014] Furthermore, the support plate has a positioning groove on its side facing the side wall, and the positioning groove is adapted to the reinforcing rib.

[0015] In one embodiment, the sidewall is thinned in the area corresponding to the accommodating space to form a thin-walled area; other areas on the sidewall form a thick-walled area; a portion of the end face of the thick-walled area in the opening direction is recessed to form a groove, and the cover plate is embedded in the groove.

[0016] In one embodiment, the support plate extends circumferentially along the housing and covers all the enclosure members on the adjacent cover plate.

[0017] In one embodiment, the support plate is integrally formed with the housing.

[0018] In one embodiment, the enclosure member is spaced apart from the support plate, and the distance between the enclosure member and the support plate is less than the minimum outer diameter of the magnetic member; and / or, the enclosure member is spaced apart from the side wall, and the distance between the enclosure member and the side wall is less than the minimum outer diameter of the magnetic member.

[0019] This invention provides a magnetic building block, comprising a shell, two cover plates, and multiple magnetic components. The shell includes at least three integrally formed sidewalls, which together form a cavity with openings at both ends. The connection points of adjacent sidewalls form connecting corners. Each connecting corner has a support plate on its inner wall surface adjacent to both openings. The cover plates respectively close the openings. Each cover plate has multiple blocking components positioned opposite the connecting corners, between the cover plate and its adjacent support plate. The adjacent sidewalls, blocking components, cover plates, and adjacent support plates form an accommodating space. Each magnetic component can be flipped and placed within this accommodating space. This invention simplifies assembly steps, reduces assembly difficulty, and improves assembly efficiency through the integrally formed sidewalls. Simultaneously, the semi-open cavity formed by the blocking components and cover plates provides greater operating space for installing magnetic components, reducing assembly difficulty, minimizing assembly errors, and allowing installers to readjust incorrectly installed magnetic components without tools. During installation, simply install the magnetic components onto the cover plate first, allowing the enclosure to restrict the position of the magnetic components. Then, install the cover plate onto the housing to ensure the magnetic components are stably installed within the accommodating space. This completes the installation process. Furthermore, the support plate simplifies the internal structure of the housing and, together with the cover plate, reduces the assembly difficulty of the magnetic blocks. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A schematic diagram of the structure of an embodiment of the magnetic building blocks of this utility model is shown;

[0022] Figure 2 for Figure 1 Top view of the magnetic building blocks;

[0023] Figure 3 for Figure 2 Sectional view along line III-III;

[0024] Figure 4 for Figure 3 A magnified view of a section at point A in the middle;

[0025] Figure 5 for Figure 1 Structural diagram of the central cover plate, enclosure components, and magnetic components;

[0026] Figure 6 for Figure 1A schematic diagram of the internal structure of the magnetic building blocks from one perspective (some structures are not shown);

[0027] Figure 7 for Figure 1 A schematic diagram of the internal structure of the magnetic building blocks from another perspective (some structures are not shown).

[0028] Explanation of icon numbers:

[0029] label name label name label name 100 Magnetic building blocks 1132 Reinforcing ribs 16 storage space 10 case 12 Opening 20 cover plate 11 sidewall 13 cavity 21 enclosure components 112 thin-walled region 14 Connecting corners 22 Magnetic components 113 Thick-walled region 15 support plate 30 Support components 1131 groove 151 positioning groove 31 Supporting convex strip

[0030] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application. In addition, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those of ordinary skill in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0032] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0033] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text is to include three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies both A and B.

[0034] This invention proposes a magnetic building block 100. These building blocks can be attracted and connected to each other by magnetic force, allowing users to freely combine them to create various shapes and structures.

[0035] In this embodiment of the utility model, please refer to Figures 1 to 7The magnetic building block 100 includes a shell 10, two cover plates 20, and multiple magnetic components 22.

[0036] The housing 10 includes at least three integrally formed sidewalls 11, and the multiple sidewalls 11 enclose a cavity 13 with openings 12 at both ends; the connection between adjacent sidewalls 11 forms a connecting corner 14; a support plate 15 is provided on the inner wall surface of the connecting corner 14 adjacent to the two openings 12.

[0037] Two cover plates 20 cover the two openings 12 respectively; each cover plate 20 has a plurality of enclosure members 21 protruding from the wall facing the cavity 13, which are respectively arranged opposite to the plurality of connecting corners 14. The enclosure members 21 are arranged between the cover plate 20 and the adjacent support plate 15; the adjacent side walls 11, enclosure members 21, cover plate 20 and the support plate 15 adjacent to the cover plate 20 enclose and form an accommodating space 16.

[0038] The number of magnetic components 22 corresponds one-to-one with the number of accommodating spaces 16, and each magnetic component 22 can be flipped and placed in an accommodating space 16.

[0039] In this embodiment, the shell 10 is the main frame of the magnetic building blocks 100, serving to support and accommodate the internal structure. The material of the shell 10 can be PC plastic or ABS plastic, etc., and is not limited here. PC material has good impact resistance and transparency, while ABS material has high hardness and wear resistance. Both can ensure that the shell 10 is not easily damaged in daily use and meets toy safety standards.

[0040] The housing 10 includes at least three sidewalls 11. The number of sidewalls 11 can be three, four, or more, etc. When the housing 10 has three sidewalls 11, it can form a triangular prism; when the housing 10 has four sidewalls 11, it can form a cube or cuboid. Molding multiple sidewalls 11 in one piece simplifies assembly steps, reduces assembly difficulty, improves assembly efficiency, and ensures structural strength and integrity. One-piece molding can be achieved in various ways, such as injection molding and blow molding. Multiple sidewalls 11 enclose a cavity 13 with openings 12 at both ends. This cavity 13 is designed to accommodate magnetic components, a support plate 15, and other related components. The connection points of adjacent sidewalls 11 form connecting corners 14. These connecting corners 14 serve as the connection points of the sidewalls 11, and their shape is related to the overall shape. For example, the connecting corners 14 of a cuboid / cube housing 10 are right angles, while the connecting corners 14 of a triangular prism housing 10 are acute or obtuse angles.

[0041] In this embodiment, a support plate 15 is provided on the inner wall surface of each end of the connecting corner 14 adjacent to the two openings 12. The support plate 15 can abut against the inner wall surface of the connecting corner 14. When the support plate 15 abuts against the inner wall surface of the connecting corner 14, the support plate 15 can support both the housing 10 and the magnetic component 22. It is possible that one support plate 15 covers multiple enclosure components 21 on the same cover plate 20, or multiple support plates 15 can be correspondingly fitted to multiple enclosure components 20 on the same cover plate 20, which is not limited here.

[0042] The design incorporates multiple mounting slots inside the housing 10 to accommodate the magnetic component 22, with columnar supports on the bottom walls of these slots to ensure the magnetic component 22 can be close to the apex of the housing. These columnar supports must maintain precise distances from the side walls of the mounting slots and the cover plate 20; otherwise, the magnetic component 22 will not be able to rotate smoothly within the slots, affecting the magnetic block function. This design complicates the internal structure of the housing and places higher demands on the manufacturing precision of the housing 10. In this embodiment, a support plate 15 is used to support the magnetic component, simplifying the internal structural design of the housing.

[0043] The cover plate 20 is used to close the openings 12 at both ends of the shell 10. Taking the shell 10 as a cube as an example, when the magnetic building blocks 100 are assembled vertically, the seams are distributed on all four sides. When subjected to external force or gravity, these parts are prone to deformation or misalignment, thus affecting the stability of the entire stacked structure. In this embodiment, the seams are only distributed on two sides. Compared with the former, this embodiment has fewer seamless sides, and therefore the probability of deformation or misalignment due to the seams is lower, which is more conducive to improving the stability of the magnetic building blocks 100 when stacked.

[0044] Meanwhile, the cover plate 20, together with the housing 10, the support plate 15, and the enclosure member 21, forms an accommodating space 16 for the magnetic member 22 to rotate, and also participates in the connection and assembly of the magnetic building blocks 100. The material of the cover plate 20 can also be PC plastic or ABS plastic, etc., and is not limited here.

[0045] The enclosure 21 protrudes toward the wall of the cavity 13 and is positioned opposite to the connecting corner 14. It can effectively block the magnetic component 22 and prevent it from falling out of the accommodating space 16, without affecting the assembly of the cover plate 20 and the housing 10.

[0046] In related designs, the enclosure 21 is connected to the inner wall of the housing 10 to form an assembly slot for accommodating the magnetic component 22. In this case, the installer first needs to install several magnetic components 22 into the assembly slot of the housing 10, and then close the housing 10 to seal the opening 12. Since both the magnetic blocks 100 and the magnetic components 22 are small, it is essential to ensure that the magnetic components 22 are precisely aligned with the assembly slot for successful installation. If the magnetic component 22 is not installed correctly, it will need to be removed and reinstalled using tools. However, in this embodiment, the enclosure 21 and the cover plate 20 form a semi-open cavity. This allows the installer to first install the magnetic component 22 onto the cover plate 20, so that the enclosure 21 first restricts the position of the magnetic component 22, and then install the cover plate 20 onto the housing 10 to ensure that the magnetic component 22 is stably installed within the accommodating space 16. This provides greater operational space for the installation of the magnetic component 22, reduces installation difficulty, minimizes installation errors, and allows the installer to readjust the magnetic component 22 without the need for tools.

[0047] Magnetic components 22 provide magnetic force to achieve adsorption connections between the building blocks. The shapes of these magnetic components 22 include, but are not limited to, cuboids, cubes, and spheres. The size of the magnetic components 22 is smaller than the accommodating space 16, with appropriate gaps to ensure that the magnetic components 22 can be freely rotated. In this way, stable adsorption connections can be formed between the faces of different magnetic building blocks 100, between the connecting corners 14, and between the faces and connecting corners 14.

[0048] This invention provides a magnetic building block 100, comprising a shell 10, two cover plates 20, and multiple magnetic components 22. The shell 10 includes at least three integrally formed sidewalls 11, which enclose a cavity 13 with openings 12 at both ends. Connecting corners 14 are formed at the junctions of adjacent sidewalls 11. Each inner wall surface of the connecting corner 14 adjacent to the two openings 12 is provided with a support plate 15. The cover plates 20 cover the openings 12. Each cover plate 20 has multiple blocking components 21 disposed opposite to the connecting corners 14, and these blocking components 21 are positioned between the cover plate 20 and its adjacent support plate 15. The adjacent sidewalls 11, blocking components 21, cover plates 20, and the support plate 15 adjacent to the cover plate 20 enclose a receiving space 16. Each magnetic component 22 can be flipped and placed within a receiving space 16. This invention simplifies assembly steps, reduces assembly difficulty, and improves assembly efficiency through the integral forming of multiple sidewalls 11. In some embodiments, the cover plate 20 and the housing 10 are ultrasonically welded.

[0049] Meanwhile, the semi-open cavity formed by the enclosure 21 and the cover plate 20 provides more operating space for the installation of the magnetic component 22, reducing assembly difficulty and errors, and allowing the installer to readjust incorrectly installed magnetic components 22 without the need for tools. During installation, simply install the magnetic component 22 onto the cover plate 20 first, allowing the enclosure 21 to restrict the position of the magnetic component 22, and then install the cover plate 20 onto the housing 10 to stably install the magnetic component 22 within the accommodating space 16. Furthermore, the support plate 15 simplifies the internal structure of the housing 10 and, together with the cover plate 20, reduces the assembly difficulty of the magnetic blocks 100.

[0050] In one embodiment, please refer to Figures 5 to 7 The side walls 11 and / or the cover plate 20 are thinned in the area corresponding to the accommodating space 16. This reduces the distance between the magnetic components 22 of the different magnetic building blocks 100, enhancing the attraction between the magnetic building blocks 100 and making the structure built from the blocks more stable. At the same time, the thinning design reduces the amount of material used, lowers the overall weight, and improves the portability and stacking flexibility of the magnetic building blocks 100.

[0051] Further, please refer to Figure 2 , Figure 3 , Figure 6 as well as Figure 7 The magnetic building block 100 also includes a support member 30 extending along the orientation of the opening 12. The support member 30 is disposed between the two support plates 15, and both ends of the support member 30 abut against the two support plates 15 respectively. In this way, the support member 30 can support the support plates 15, keeping the support plates 15 in a fixed position and preventing the magnetic component 22 from falling out of the accommodating space 16. The support member 30 can be columnar or plate-shaped, and can be connected to the side wall 11 or the connection between the two side walls 11.

[0052] Furthermore, the support member 30 includes a plurality of support protrusions 31, and each connecting corner 14 is provided with a support protrusion 31 on each of its two adjacent sidewalls 11.

[0053] In this embodiment, the support ridge 31 directly supports the support plate 15, dispersing pressure, preventing deformation or damage, and enhancing the stability of the magnetic component 22's placement base. The support ridge 31 connects to the side wall 11, effectively transmitting pressure to the side wall 11, improving force transmission efficiency, and strengthening the structural load-bearing capacity of the shell 10. By stabilizing the support plate 15 and reinforcing the side wall 11, the support ridge 31 provides a stable boundary for the accommodating space 16, ensuring the stable position of the magnetic component 22. Even with frequent use or external impact, it can maintain its magnetic attraction performance and reduce adsorption failure. Furthermore, in this embodiment, the distribution design of the support ridge 31 makes the support component 30 have a hollow structure, thus reducing weight and material costs while ensuring support strength. Simultaneously, when the support ridge 31 is integrally formed with the side wall 11, this hollow structure also facilitates material flow and cooling during injection molding.

[0054] In one embodiment, please refer to Figure 2 , Figure 3 , Figure 6 as well as Figure 7 The area of ​​the sidewall 11 corresponding to the accommodating space is thinned to form a thin-walled area 112; other areas on the sidewall form a thick-walled area 113; each thick-walled area 113 of the sidewall is provided with at least two reinforcing ribs adjacent to the thin-walled area 112, and the reinforcing ribs 1132 extend along the opening direction to abut against the inner surface of the cover plate 20.

[0055] In this embodiment, the thin-walled region 112 shortens the distance between the magnetic components 22 of the different magnetic building blocks 100, enhancing the attraction force between the magnetic building blocks 100 and making the structure built from the blocks more stable. At the same time, the thin-walled region 112 reduces the amount of material used, lowers the overall weight, and improves the portability and stacking flexibility of the magnetic building blocks 100. The thick-walled region 113 compensates for the decrease in strength caused by the thinning of the thin-walled region 112, ensuring the overall structural stability of the sidewall 11. The combination of these two features ensures both structural strength and enhanced magnetic performance.

[0056] The main function of the reinforcing rib 1132 is to enhance the structural strength of the sidewall 11 in the direction of the opening 12, and to prevent the sidewall 11 from deforming when subjected to external pressure or stacking pressure. The reinforcing rib 1132 abuts against the cover plate 20 and can assist the cover plate 20 in accurate positioning during assembly.

[0057] Further, please refer to Figure 7 The support plate 15 is provided with a positioning groove 151 on the side facing the side wall 11, and the positioning groove 151 is adapted to the reinforcing rib 1132.

[0058] Thus, the reinforcing rib 1132 provides guidance for the installation of the support plate 15, simplifies the installation process, reduces the installation difficulty, can greatly improve assembly efficiency during the production process, and at the same time reduce the product defect rate caused by installation deviation and reduce production costs.

[0059] In one embodiment, please refer to Figures 2 to 4 The area of ​​the sidewall 11 corresponding to the accommodating space is thinned to form a thin-walled area 112; other areas of the sidewall 11 form a thick-walled area 113; a portion of the end face of the thick-walled area 113 in the opening direction is recessed to form a groove 1131, and the cover plate 20 is embedded in the groove 1131.

[0060] In this embodiment, the groove 1131 provides precise positioning for the installation of the cover plate 20, which facilitates accurate and efficient installation of the cover plate 20 during the production process, thereby improving production efficiency and product consistency.

[0061] In one embodiment, the support plate 15 extends circumferentially along the housing 10 and covers all the enclosure members 21 on the adjacent cover plate 20.

[0062] Compared to the case where the support plates 15 adjacent to the same opening 12 are independent of each other, this embodiment can reduce the number of times the support plates 15 need to be installed, thus improving installation efficiency. Taking the case where the shell 10 is a cube as an example, only two support plates 15 are needed to cover all the enclosure parts 21 in the magnetic building blocks 100. In some embodiments, a through hole is provided in the middle of this one-piece molded support plate 15 to save materials and reduce weight.

[0063] In one embodiment, the support plate 15 is integrally formed with the housing 10. This reduces the number of components in the magnetic building block 100, decreasing the steps required to install the support plate 15 to the housing 10 and improving installation efficiency. During installation, the magnetic component 22 is first installed onto the two cover plates 20, and then the housing 10 is connected to the two cover plates 22. Simultaneously, the support plate 15 and the side wall 11 form a single unit, resulting in high connection strength. When the magnetic building block 100 is subjected to external impact or compression, the support plate 15 will not detach, continuously providing stable support for the magnetic component 22 and ensuring the integrity of the accommodating space 16. The support plate 15 and the housing 10 can be integrally formed by injection molding. In some embodiments, the support plate 15 can be fixedly connected after the side wall 11 is formed using hot melt adhesive, ultrasonic welding, or other methods.

[0064] In one embodiment, please refer to Figure 4 The enclosure component 21 and the support plate 15 are spaced apart, with the distance between them being less than the minimum outer diameter of the magnetic component 22. This effectively prevents the magnetic component 22 from detaching, reducing functional failures caused by misalignment, and also avoids interference between the enclosure component 21 and the support plate 15 during installation, improving installation efficiency. Furthermore, this spacing design also saves materials.

[0065] In one embodiment, the enclosure 21 is spaced apart from the side wall 11, and the distance between the enclosure 21 and the side wall 11 is less than the minimum outer diameter of the magnetic component 22. This effectively prevents the magnetic component 22 from detaching, reducing functional failures caused by misalignment of the magnetic component 22, and also avoids interference between the enclosure 21 and the side wall 11 during installation, improving installation efficiency. Furthermore, this spacing design also saves materials.

[0066] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A magnetic building block, characterized in that, include: The housing includes at least three integrally formed sidewalls, which together form a cavity with openings at both ends; a connecting corner is formed at the junction of two adjacent sidewalls; and a support plate is provided on the inner wall surface of each connecting corner adjacent to the two openings. Two cover plates respectively cover the two openings; each cover plate has a plurality of enclosure members protruding from the wall facing the cavity and respectively arranged opposite to the plurality of connecting corners, the enclosure members being disposed between the cover plate and the adjacent support plate; the two adjacent side walls, the enclosure members, the cover plate, and the support plate adjacent to the cover plate enclose and form an accommodating space; Multiple magnetic components are provided, each corresponding to a specific number of accommodating spaces, and each magnetic component can be flipped and placed within one of the accommodating spaces.

2. The magnetic building blocks as described in claim 1, characterized in that, The sidewalls and / or the cover plate are thinned in the area corresponding to the accommodating space.

3. The magnetic building blocks as described in claim 2, characterized in that, The magnetic building block also includes a support member extending along the orientation of the opening, the support member being disposed between the two support plates, and both ends of the support member abutting against the two support plates respectively.

4. The magnetic building blocks as described in claim 3, characterized in that, The support member includes multiple support protrusions. ， Each of the connecting corners is provided with a supporting protrusion on each of its two adjacent sidewalls.

5. The magnetic building blocks as described in claim 2, characterized in that, The area of ​​the sidewall corresponding to the accommodating space is thinned to form a thin-walled area; the other areas on the sidewall form a thick-walled area. Each of the sidewalls has at least two reinforcing ribs adjacent to the thin-walled region on its thick-walled region, the reinforcing ribs extending along the opening direction to abut against the inner surface of the cover plate.

6. The magnetic building blocks as described in claim 5, characterized in that, The support plate has a positioning groove on its side facing the side wall, and the positioning groove is adapted to the reinforcing rib.

7. The magnetic building blocks as described in claim 2, characterized in that, The area of ​​the sidewall corresponding to the accommodating space is thinned to form a thin-walled area; the other areas on the sidewall form a thick-walled area. The thick-walled region has a recessed groove on a portion of its end face in the opening direction, and the cover plate is fitted into the groove.

8. The magnetic building blocks as described in any one of claims 1-5, characterized in that, The support plate extends circumferentially along the housing and covers all the enclosure members on the adjacent cover plate.

9. The magnetic building blocks as described in any one of claims 1-7, characterized in that, The support plate is integrally formed with the shell.

10. The magnetic building blocks as described in any one of claims 1-7, characterized in that, The enclosure component is spaced apart from the support plate, and the distance between the enclosure component and the support plate is less than the minimum outer diameter of the magnetic component; and / or, the enclosure component is spaced apart from the side wall, and the distance between the enclosure component and the side wall is less than the minimum outer diameter of the magnetic component.

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