Magnetic building block toy
By designing polygonal building block units and magnetic building block toys with built-in long magnets, the problem of low flexibility in the assembly method of traditional building block toys is solved, realizing fast and stable building block assembly, and enhancing the fun and learning value of the toys.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO GEMMICC TOYS CO LTD
- Filing Date
- 2025-04-03
- Publication Date
- 2026-06-12
AI Technical Summary
Traditional magnetic building block toys suffer from limited flexibility in assembly and cumbersome operation due to the fixed position of the magnets.
The design incorporates polygonal building blocks, upper and lower shells, and built-in long magnets, enabling rapid assembly through magnetic attraction. It supports multi-angle and multi-directional combinations and connects the upper and lower shells with fixing posts and rivets to enhance stability.
This invention creates a simple, flexible, and stable building block toy that enhances the fun and creativity of the toy. It is suitable for young children, classroom teaching aids, and improves their learning interest.
Smart Images

Figure CN224345405U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building block toy technology, and in particular to a magnetic building block toy. Background Technology
[0002] Building blocks can be traced back to ancient Chinese and ancient Egyptian civilizations. Originally used for construction and education, they can help children learn basic knowledge such as geometric shapes, colors, numbers, and letters, understand the shape and structure of different objects, and intuitively experience spatial relationships by stacking and arranging blocks, understand spatial concepts such as up and down, left and right, and front and back, and improve their spatial thinking ability.
[0003] Traditional building block toys are usually assembled using snaps, slots, or friction, making the assembly and disassembly process cumbersome. As a result, a type of building block toy that uses magnetic attraction to achieve assembly has emerged on the market. These magnetic building blocks are assembled by adsorption using built-in magnets. However, since the position of the magnets is fixed, the direction of their magnetic pole adsorption is also fixed. Most of them can only be assembled according to the assembly method designed for the building blocks, resulting in low flexibility.
[0004] Therefore, there is an urgent need to improve magnetic building block toys in order to solve the aforementioned problems. Utility Model Content
[0005] The purpose of this invention is to provide a magnetic building block toy, which includes multiple building block units. Each building block unit includes an upper shell, a lower shell, and a long magnet. Two or more building block units can be quickly assembled by magnetic attraction. It supports multi-angle and multi-directional combinations and has the advantages of simple operation, stable assembly, and high flexibility.
[0006] To achieve the above objectives, the main technical solutions adopted by this utility model include:
[0007] A magnetic building block toy includes several polygonal building block units. Each building block unit includes an upper shell and a lower shell distributed vertically. Several upper clamping plates are fixedly installed on the side of the upper shell, and a lower clamping plate corresponding to the upper clamping plates is fixedly installed on the side of the lower shell. A long strip magnet is fixedly installed inside between the upper clamping plates and the lower clamping plates.
[0008] Preferably, the upper and lower clamping plates are distributed on the sides of the building block unit, and the number of the upper and lower clamping plates is the same as the number of sides of the building block unit.
[0009] Preferably, a plurality of evenly distributed fixing posts are fixedly provided on the inner side of the upper shell.
[0010] Preferably, the lower housing is fixedly provided with rivets at the positions corresponding to the fixing posts, and the upper housing and the lower housing are fixedly connected as a whole by the fixing posts and the rivets.
[0011] Preferably, the upper and lower clamping plates are arc-shaped, and after the upper and lower housings are combined, a semi-cylindrical mounting groove is formed between the arc-shaped upper and lower clamping plates.
[0012] Preferably, the mounting groove is semi-cylindrical, and the cross-sectional shape of the elongated magnet matches the mounting groove.
[0013] Preferably, the length of the elongated magnet is not less than two-thirds of the length of the mounting groove.
[0014] Preferably, both the upper housing and the lower housing are fixedly provided with anti-slip textures.
[0015] This utility model has at least the following beneficial effects:
[0016] 1. This utility model achieves rapid assembly and disassembly through magnetic adsorption, which is simple to operate, highly flexible in assembly, and suitable for young children.
[0017] 2. This utility model supports multi-angle and multi-directional splicing, enhancing the fun and creativity of toys, and can be used as a classroom teaching aid to improve students' learning interest.
[0018] 3. The long magnet of this utility model has strong adsorption force, is stable in splicing, is not easy to wear after long-term use, and the building block unit is easy to uniformly injection mold production and assembly. If the long magnet becomes demagnetized after a long time, it can be broken apart and replaced. Attached Figure Description
[0019] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:
[0020] Figure 1 This is an exploded view of the building block unit of this utility model;
[0021] Figure 2 This is a sectional elevation view of the building block unit of this utility model;
[0022] Figure 3 This is a schematic diagram of the splicing of this utility model. Figure 1 ;
[0023] Figure 4 This is a schematic diagram of the splicing of this utility model. Figure 2 ;
[0024] Figure 5This is a diagram illustrating the modular unit structure of this utility model.
[0025] In the diagram, 10 is the building block unit; 20 is the upper shell; 30 is the lower shell; 11 is the anti-slip texture; 21 is the upper plate; 31 is the lower plate; 40 is the long magnet; 51 is the fixing post; 52 is the rivet; and 60 is the mounting slot. Detailed Implementation
[0026] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.
[0027] like Figures 1-5 As shown, this embodiment provides a magnetic building block toy, which includes several polygonal building block units 10. Each building block unit 10 includes an upper shell 20 and a lower shell 30 distributed vertically. Several upper clamping plates 21 are fixedly installed on the side of the upper shell 20. A lower clamping plate 31 corresponding to the upper clamping plates 21 is fixedly installed on the side of the lower shell 30. A long bar magnet 40 is fixedly installed inside between the upper clamping plates 21 and the lower clamping plates 31. The long bar magnet 40 has a semi-circular cross-section, and its arc surface faces the outer surface of the building block unit 10.
[0028] Each building block unit 10 includes an upper shell 20, a lower shell 30, and a long magnet 40. The upper shell 20 and the lower shell 30 are injection molded from plastic or environmentally friendly materials. The assembled building block unit 10 has a flat polygonal shape. The long magnet 40 is a semi-cylindrical magnet made of neodymium iron boron (NdFeB) magnet. When the upper shell 20 and the lower shell 30 are assembled, they are embedded inside the upper plate 21 and the lower plate 31, with their curved surfaces facing the outer surface of the building block unit 10. The long magnets 40 of each building block unit 10 are arranged in a preset direction to ensure that the opposite poles of the magnets of adjacent building blocks are opposite to each other, generating an attraction force. Two or more building blocks 10 can be quickly assembled by magnetic attraction, supporting multi-angle and multi-directional combinations. It has the advantages of simple operation, stable assembly, and high flexibility.
[0029] Specifically, the long magnets 40 of each building block unit 10 are arranged in a preset direction to ensure that the opposite poles of the magnets of adjacent building block units 10 are opposite. The arc shape of the semi-cylinder naturally has the characteristic of matching curvature. When the arc surfaces of two semi-cylinders are opposite each other, their curved surfaces can fit tightly together, increasing the effective contact area, reducing the leakage of magnetic field lines, thereby improving the adsorption strength and generating adsorption force. The arc design of the semi-cylinder will make the magnetic field lines more concentrated in the arc area (similar to the edge effect of a magnet), thereby enhancing the local magnetic field strength. When two or more arc surfaces are in contact, the magnetic field lines will form a closed loop through the other magnet. Multiple semi-cylinder magnets can form a ring or chain structure (such as end to end) through the adsorption of the arc surface, and achieve stable connection by utilizing the closed characteristic of the magnetic field to generate effective adsorption.
[0030] Furthermore, such as Figure 1 and Figure 2 As shown, the upper plate 21 and the lower plate 31 are distributed on the side of the building block unit 10. The number of upper plate 21 and lower plate 31 is the same as the number of sides of the building block unit 10. Each building block unit 10 has multiple faces equipped with long strip magnets 40 to support splicing at multiple angles and in multiple directions.
[0031] Furthermore, such as Figures 1-5 As shown, several evenly distributed fixing posts 51 are fixedly installed on the inner side of the upper housing 20, and rivets 52 are fixedly installed on the lower housing 30 at the positions corresponding to the fixing posts 51. The upper housing 20 and the lower housing 30 are fixedly connected as a whole by the fixing posts 51 and the rivets 52. The cooperation of the fixing posts 51 and the rivets 52 can firmly connect the upper housing 20 and the lower housing 30 together to form a stable whole structure. This ensures that the upper and lower housings will not easily separate when the whole device is subjected to external forces, such as vibration, collision or slight pulling during daily use, thus ensuring the integrity and durability of the product.
[0032] During the production process, the design of the fixing post 51 and the rivet 52 makes the assembly of the upper shell 20 and the lower shell 30 simple and efficient. Workers only need to align the rivet 52 of the lower shell 30 with the fixing post 51 of the upper shell 20 to complete the assembly of the two shells, which reduces assembly time and difficulty and improves production efficiency.
[0033] Furthermore, such as Figure 2 As shown, the upper plate 21 and the lower plate 31 are arc-shaped. After the upper shell 20 and the lower shell 30 are combined, a semi-cylindrical mounting groove 60 is formed between the arc-shaped upper plate 21 and the lower plate 31. The cross-sectional shape of the long magnet 40 matches the mounting groove 60. The length of the long magnet 40 is not less than two-thirds of the length of the mounting groove 60. The arc-shaped upper plate 21 and the lower plate 31 help to increase the contact area and improve the adsorption stability. The fact that the length of the long magnet 40 is not less than two-thirds of the length of the mounting groove 60 allows the magnetic field generated by the magnet to better cover the area of the building block that needs magnetic action, thereby enhancing the magnetic effect.
[0034] At the same time, such as Figure 5 As shown, it can be used as a classroom teaching aid. The triangular building block unit 10 can be assembled into a triangular pyramid or triangular prism, and the quadrilateral building block unit 10 can be assembled into a square or rectangle, which facilitates the understanding of the relevant knowledge of solid geometry in the textbook and improves students' learning interest.
[0035] In addition, such as Figures 1-5As shown, anti-slip textures 11 are fixedly provided on both the upper shell 20 and the lower shell 30. The anti-slip textures can increase the friction between the hand and the shell. When the child picks up or operates the building blocks, even if the hands are sweaty or the surface of the building blocks is dusty, the child can hold them more firmly and they are less likely to slip. The long magnet 40 can also be broken open and replaced if it becomes demagnetized over time.
[0036] like Figures 1-5 As shown, the principle of the magnetic building block toy provided in this embodiment is as follows:
[0037] During installation, multiple long magnets 40 are placed inside the lower plate 31. The upper shell 20 is fixedly connected to the lower shell 30 as a whole by fixing posts 51 and rivets 52. At this time, the long magnets 40 will be firmly stuck in the mounting groove 60 between the upper plate 21 and the lower plate 31. Adjacent building block units 10 can be quickly assembled and disassembled by magnetic adsorption. The operation is simple and the assembly is highly flexible. Triangular building block units 10 can be assembled into triangular pyramids or triangular prisms, and quadrilateral building block units 10 can be assembled into squares or rectangles. It supports multi-angle and multi-directional assembly.
[0038] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" as used throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.
[0039] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes that element.
[0040] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.
Claims
1. A magnetic building block toy, comprising a plurality of polygonal building block units (10), characterized in that, The building block unit (10) includes an upper shell (20) and a lower shell (30) distributed vertically. Several upper clamping plates (21) are fixedly installed on the side of the upper shell (20). A lower clamping plate (31) corresponding to the upper clamping plate (21) is fixedly installed on the side of the lower shell (30). A long bar magnet (40) is fixedly installed inside between the upper clamping plate (21) and the lower clamping plate (31). The long bar magnet (40) has a semi-circular cross-section, and its arc surface faces the outer surface of the building block unit (10).
2. The magnetic building block toy according to claim 1, characterized in that: The upper plate (21) and the lower plate (31) are distributed on the side of the building block unit (10), and the number of the upper plate (21) and the lower plate (31) is the same as the number of sides of the building block unit (10).
3. A magnetic building block toy according to claim 1, characterized in that: The inner side of the upper shell (20) is fixed with a number of evenly distributed fixed columns (51).
4. A magnetic building block toy according to claim 3, characterized in that: The lower housing (30) is fixedly provided with rivets (52) at the position corresponding to the fixing post (51), and the upper housing (20) and the lower housing (30) are fixedly connected as a whole by the fixing post (51) and the rivets (52).
5. A magnetic building block toy according to claim 1, characterized in that: The upper plate (21) and the lower plate (31) are arc-shaped. After the upper shell (20) and the lower shell (30) are combined, a semi-cylindrical mounting groove (60) is formed between the arc-shaped upper plate (21) and the lower plate (31).
6. A magnetic building block toy according to claim 5, characterized in that: The cross-sectional shape of the long bar magnet (40) matches the mounting groove (60).
7. A magnetic building block toy according to claim 6, characterized in that: The length of the long bar magnet (40) is not less than two-thirds of the length of the mounting groove (60).
8. A magnetic building block toy according to claim 1, characterized in that: Both the upper housing (20) and the lower housing (30) are fixedly provided with anti-slip textures (11).