Spliced building block toy

By using the dovetail joint and dovetail tenon joint and the arc-shaped corner design, the problems of single function and safety hazards of traditional building blocks are solved, and a stable multi-directional splicing and safety-enhancing splicing building block toy is realized.

CN223474415UActive Publication Date: 2025-10-28SHANTOU DEGAO SCI & EDUCATION TOYS CO LTD
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Patent Information

Application Number
CN202522015733.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-19
Publication Date
2025-10-28
Estimated Expiration
2035-09-19

AI Technical Summary

Technical Problem

Traditional building blocks have limited functionality, making it difficult to meet diverse building needs, and they also pose safety hazards, such as scratching users, especially young children.

Method used

It adopts a magnetic splicing structure, utilizing the interlocking of dovetail grooves and dovetail tenons, and designs rounded corners to eliminate sharp edges and corners, and supports splicing in multiple directions, including flexible combinations of central extension blocks and edge decorative blocks.

Benefits of technology

It achieves stable multi-directional splicing, supports the construction of complex shapes, improves safety, avoids the risk of scratches, and is especially suitable for young children.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223474415U_ABST
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Abstract

The utility model discloses a spliced building block toy, which is formed by splicing a plurality of building blocks, and is characterized in that the building blocks are divided into middle expansion blocks and edge decoration blocks, and each of the middle expansion blocks and the edge decoration blocks is provided with two end surfaces and four side surfaces; first dovetail grooves or first dovetail tenons are formed in the four side faces of the middle extension block in the length direction of the middle extension block; in the length direction of the edge decoration block, the outer side face of the edge decoration block is provided with a decoration face, and at least the side face opposite to the decoration face is provided with a second dovetail groove or a second dovetail joint. According to the splicing type building block toy, through the flexible matching of the edge decoration blocks and the middle expansion blocks and the splicing design of the two edge decoration blocks at the ends, a user is supported to build various complex and diversified shapes, and the creative requirement is fully met.
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Description

Technical Field

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

[0002] Traditional building blocks have a relatively limited function, mostly only able to be assembled in one or a limited number of directions, which makes it difficult to meet the diverse building needs of users and limits the expression of creativity;

[0003] In addition, some building block toys have sharp edges and corners at the joints, posing a safety hazard of scratching users, especially young children, and their safety needs to be further improved. Utility Model Content

[0004] The purpose of this invention is to provide an interlocking building block toy to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A magnetic interlocking building block toy, composed of multiple building blocks, is characterized in that: the building blocks are divided into central extension blocks and edge decorative blocks, each having two end faces and four side faces; along the length of the central extension block, each of the four side faces is provided with a first dovetail groove or a first dovetail tenon; along the length of the edge decorative block, the outer side of the edge decorative block is provided with a decorative surface, and at least the side opposite the decorative surface is provided with a second dovetail groove or a second dovetail tenon; the specifications of each first dovetail tenon, first dovetail groove, second dovetail groove, and second dovetail tenon are the same and match; adjacent two central extension blocks and edge decorative blocks are connected and fitted together by the first dovetail groove and the first dovetail tenon.

[0007] As a further embodiment of this utility model: at the end of the interlocking building block toy, the two edge decorative blocks are connected by the first dovetail groove, the first dovetail tenon and the second dovetail groove, the second dovetail tenon.

[0008] As a further improvement of this utility model: the corners of the first dovetail tenon and the second dovetail tenon are arc-shaped, and correspondingly, the first dovetail groove and the second dovetail groove also have arc-shaped corners.

[0009] As a further improvement of this utility model, the interlocking intermediate extension block and the edge decorative block have matching mating surfaces.

[0010] As a further improvement of this utility model, the mating surface is a plane or an arc surface.

[0011] As a further improvement of this utility model, the decorative surface is a flat surface, an arc surface, or a patterned surface.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] This utility model employs a dovetail joint structure with dovetail grooves and dovetail tenons. The dovetail structure itself has excellent anti-detachment performance, which can effectively prevent the assembled building blocks from falling off along the direction perpendicular to the joint when subjected to external force. The interlocking building blocks have matching mating surfaces, which increases the contact area and further improves the stability of the assembly, ensuring that the assembled shape is not easy to loosen or fall apart.

[0014] This utility model features a first dovetail groove or a first dovetail tenon on each of the four sides of the middle extension block, allowing the middle extension block to be spliced ​​with other middle extension blocks or edge decorative blocks in four directions: up, down, left, and right, breaking the limitation of traditional building blocks splicing in only one direction.

[0015] This utility allows users to build various complex and diverse shapes through the flexible combination of edge decorative blocks and middle extension blocks, as well as the splicing design of two edge decorative blocks at the ends, fully satisfying creative needs.

[0016] This utility model features rounded corners in its first dovetail tenon, second dovetail tenon, and corresponding dovetail groove, eliminating sharp edges and effectively preventing users from being scratched during assembly, disassembly, and play. It is especially suitable for young children and offers greater safety. Attached Figure Description

[0017] Figure 1 This is a structural diagram of an interlocking building block toy.

[0018] Figure 2 This is an assembly diagram of a toy assembly in a modular building block toy.

[0019] In the diagram: 1 - building block; 2 - edge decorative block; 3 - middle extension block; 4 - first dovetail groove; 5 - first dovetail tenon; 6 - mating surface; 8 - decorative surface; 9 - second dovetail groove; 10 - second dovetail tenon. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-2 In this embodiment of the utility model, this interlocking building block toy includes multiple building blocks 1. The building blocks 1 are divided into a middle extension block 3 and an edge decorative block 2. The middle extension block 3 is a cuboid structure with two rectangular end faces and four rectangular side faces. Along the length direction of the middle extension block 3, a first dovetail tenon 5 is integrally formed on each of the four side faces of the middle extension block 3. The four first dovetail tenons 5 are of the same size and are distributed at the same height position on the four side faces.

[0022] The edge decorative block 2 is also a cuboid structure with two rectangular end faces and four rectangular side faces. Along the length of the edge decorative block 2, its outer side is a flat decorative surface. On the side opposite to the decorative surface 8, a second dovetail tenon 10 is integrally formed. The specifications of the second dovetail tenon 10 are the same as those of the first dovetail tenon 5, and it can match the first dovetail groove 4.

[0023] The mating surfaces 6 of the interlocking intermediate extension block 3 and the edge decorative block 2 are flat. When the second dovetail tenon 10 of the edge decorative block 2 is inserted into the first dovetail groove 4 of the intermediate extension block, the end face of the edge decorative block 2 and the side face of the intermediate extension block 3 fit tightly together, and the mating surfaces 6 are completely matched without any obvious gaps.

[0024] During the assembly process, the user can insert the first dovetail tenon 5 of one intermediate extension block 3 into the first dovetail groove 4 of another intermediate extension block 3 to achieve horizontal splicing of the two intermediate extension blocks 3.

[0025] Alternatively, the second dovetail tenon 10 of the edge decorative block 2 can be inserted into the first dovetail groove 4 of the middle extension block to achieve the splicing of the edge decorative block 2 and the middle extension block 3, and the flat decorative surface of the edge decorative block 2 can be used for secondary creation.

[0026] When the building block toy is assembled to the end, the second dovetail tenons 10 of the two edge decorative blocks 2 can be inserted into the two first dovetail grooves 4 of the middle extension block 3 at the end to close the end.

[0027] In one specific embodiment, the four sides of the intermediate extension block 3 are integrally formed with a first dovetail groove 4, and the specifications of the first dovetail groove 4 are uniform.

[0028] A second dovetail groove 9 is integrally formed on the side opposite to the decorative surface. The specifications of the second dovetail groove 9 are the same as those of the first dovetail groove 4, and it can match the first dovetail tenon 5.

[0029] The mating surface 6 of the interlocking intermediate extension block 3 and the edge decorative block 2 is an arc surface. The radius of curvature of the arc surface is the same as the radius of curvature of the arc decorative surface of the edge decorative block 2. When the first dovetail tenon 5 of the intermediate extension block 3 is inserted into the second dovetail groove of the edge decorative block 2, the mating surface 6 fits tightly to ensure a stable splicing.

[0030] The building block toys in this embodiment are suitable for building shapes with curved outlines.

[0031] This embodiment provides an optimized modular building block toy compared to Embodiment 1:

[0032] The corners of the first dovetail tenon 5 and the second dovetail tenon 10 are both designed with rounded corners. Correspondingly, the corners of the first dovetail groove 4 and the second dovetail groove 9 are also rounded corners with the same radius, ensuring smooth tenon and mortise fit while minimizing the safety hazards caused by sharp corners.

[0033] On the four sides of the middle extension block 3, two opposite sides are provided with first dovetail tenons 5, and the other two opposite sides are provided with first dovetail grooves 4. This design allows the middle extension block 3 to be directly plugged into other middle extension blocks 3 without distinguishing the direction when splicing, making it more convenient to use.

[0034] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A modular building block toy, composed of multiple building blocks, characterized by: The building block (1) is divided into a middle extension block (3) and an edge decorative block (2). Both the middle extension block (3) and the edge decorative block (2) have two end faces and four sides. Along the length of the middle extension block (3), the four sides of the middle extension block (3) are provided with a first dovetail groove (4) or a first dovetail tenon (5). Along the length of the edge decorative block (2), the outer side of the edge decorative block (2) is provided with a decorative surface (8), and at least the side opposite to the decorative surface (8) is provided with a second dovetail groove (9) or a second dovetail tenon (10). The specifications of each first dovetail tenon (5), first dovetail groove (4), second dovetail groove (9) and second dovetail tenon (10) are the same and match. The two adjacent middle extension blocks (3) and the edge decorative block (2) and the corresponding middle extension block (3) are connected by the first dovetail groove (4) and the first dovetail tenon (5).

2. The interlocking building block toy as described in claim 1, characterized in that: in At the ends of the modular building block toy, the two edge decorative blocks are connected by the first dovetail groove (4), the first dovetail tenon (5) and the second dovetail groove (9), the second dovetail tenon (10).

3. The interlocking building block toy as described in claim 1 or 2, characterized in that: The corners of the first dovetail tenon (5) and the second dovetail tenon (10) are arc-shaped, and correspondingly, the first dovetail groove (4) and the second dovetail groove (9) also have arc-shaped corners.

4. The interlocking building block toy as described in claim 1 or 2, characterized in that: The interlocking intermediate extension block (3) and the edge decorative block (2) have matching mating surfaces (6).

5. The interlocking building block toy as described in claim 4, characterized in that: The mating surface (6) is a plane or an arc surface.

6. The interlocking building block toy as described in claim 1 or 2, characterized in that: The decorative surface (8) is a flat surface, a curved surface, or a patterned surface.