Plug-in type building block

Abstract

The utility model discloses a plug-in type building block, the outer surface of the plug-in type building block is composed of a plurality of connecting surface covers and a locking surface cover, each connecting surface cover comprises four surface cover bases which are arranged in a central symmetry mode, and each locking surface cover comprises two surface cover bases and two locking bases which are arranged in a central symmetry mode. The two surface cover bases and the two locking bases are alternately arranged, locking protruding blocks and elastic check blocks which protrude out of the surfaces of the locking bases are arranged on the locking bases, reverse buckles are arranged at the free ends of the locking protruding blocks, and first concave holes allowing the locking protruding blocks, the reverse buckles and the elastic check blocks to pass through are formed in the surface cover bases in a hollowed-out mode. The inverted buckle rotates by a preset angle after passing through the first concave hole to be hooked to the face cover base, the side, away from the inverted buckle, of the elastic check block abuts against the inner wall of the first concave hole, and the outer surfaces of the two plug-in type building blocks are flush. Through mutual cooperation of the locking surface cover and the connecting surface cover, mutual locking of the two plug-in type building blocks is achieved, and the situation that the building blocks loosen or fall off in the using process is reduced.

Description

Technical Field

[0001] This utility model relates to the field of building block toy technology, and in particular to a plug-in building block. Background Technology

[0002] With societal development, parents are increasingly emphasizing their children's intellectual development. Currently, the market offers a wide variety of children's building block toys, such as interlocking blocks and stacking blocks. These building block toys play a positive role in cultivating children's hands-on skills and spatial imagination, and are very popular with parents and children. As an early education tool, building blocks are widely used in children's intellectual development. Through assembly, twisting, and other operations, building blocks can be assembled into various shapes, effectively cultivating children's coordination, hands-on abilities, and imagination, promoting the early formation and development of numerical and spatial concepts, and thus comprehensively enhancing children's intelligence.

[0003] Existing building block toys are usually assembled through simple piecing or stacking, but after being left unused for a long time, the connections are prone to weakening. Furthermore, because the assembly process requires a certain amount of force, children sometimes find it strenuous and even experience hand discomfort. If insufficient force is applied, the blocks are difficult to assemble or cannot be securely fixed, affecting the toy's usability and the child's enjoyment of hands-on activities.

[0004] However, existing building block designs generally suffer from several technical flaws. The interlocking surfaces of the blocks lack flexibility, resulting in a stiff feel and making them prone to being too loose or too tight during assembly, failing to meet ergonomic design standards. Furthermore, some blocks are quite heavy, requiring greater force to assemble larger quantities, making the process laborious and even causing them to easily fall off. When children use them, especially younger children, they often lose interest because they cannot successfully assemble them, thus negating the intended benefits of building block toys for children's intellectual development. Summary of the Invention

[0005] This utility model provides a plug-in building block to solve the technical problem of unstable plug-in connection of building block structures in the prior art.

[0006] To solve the above-mentioned technical problems, this utility model provides a plug-in building block. The outer surface of the plug-in building block consists of multiple connecting faceplates and a locking faceplate. The connecting faceplates include four faceplate bases arranged symmetrically in a central direction. The locking faceplates include two faceplate bases and two locking bases arranged symmetrically in a central direction. The two faceplate bases and the two locking bases are alternately arranged. The locking bases are provided with locking protrusions and elastic stops protruding from the surface of the locking bases. The free end of the locking protrusion is provided with a buckle. The faceplate bases are hollowed out with a first recessed hole for the locking protrusion, the buckle, and the elastic stop to pass through. When two plug-in building blocks are spliced ​​together, the buckle passes through the first recessed hole and rotates at a preset angle to hook onto the faceplate base. The side of the elastic stop away from the buckle abuts against the inner wall of the first recessed hole. The outer surfaces of the two plug-in building blocks are flush.

[0007] Furthermore, the elastic stop includes an elastic element and a protrusion protruding from the surface of the elastic element. The locking base has a second recessed hole for the elastic element to bend. One side of the elastic element is fixed to the inner wall of the second recessed hole, and the other side has the protrusion at its free end. When the buckle is fastened to the cover base, the cover base presses the protrusion, and the elastic element forces the protrusion to extend into the first recessed hole and abut against the inner wall of the first recessed hole, so that the locking cover locks the connecting cover.

[0008] Furthermore, the two elastic elements on one of the locking faceplates are arranged in parallel, and the protrusions protrude from the surface of the locking base.

[0009] Furthermore, if the depth of the first concave hole is D and the height of the protrusion is d, then the height range of the protrusion is: d≥0.25D.

[0010] Furthermore, if the height of the protrusion is d, then the range of the height of the protrusion is: 0.25D≤d≤0.5D.

[0011] Furthermore, each of the first recesses on the connecting cover has two square protrusions on its inner wall, and each of the first recesses on the locking cover has a long protrusion on its inner wall near the elastic element. The inner walls of the other three first recesses each have two square protrusions. When two plug-in blocks are joined together, the buckle hook engages with two adjacent square protrusions on different inner walls within the first recess. The protrusion abuts against two other square protrusions within the first recess and located diagonally opposite the buckle.

[0012] Furthermore, the protrusion is a semi-circular or conical shape, and the free end of the square protrusion has an arc-shaped surface that matches the protrusion so that the protrusion can extend into the first concave hole.

[0013] Furthermore, the square protrusion and the elongated protrusion are integrally formed with the inner wall of the first concave hole, and the elongated protrusion is connected to the square protrusion on one side and is L-shaped.

[0014] Furthermore, the locking base also has a third recessed hole, which is located directly below the inverted buckle.

[0015] Furthermore, the plug-in building blocks have a hexahedral structure, and the interior of the plug-in building blocks is hollowed out.

[0016] Compared with the prior art, the plug-in building block of this utility model has the following advantages:

[0017] This utility model embodiment features a locking cover on the outer surface of the plug-in building blocks, with a locking protrusion and an elastic stop on the locking cover. When two plug-in building blocks are joined, the buckle on the free end of the locking protrusion passes through the first recess and rotates to a preset angle to hook onto the base of the cover. The elastic stop extends into the first recess and abuts against the inner wall of the first recess. The locking cover and the connecting cover abut against each other, thus locking the two plug-in building blocks together. This effectively reduces the possibility of the building blocks loosening or falling off due to slight vibration or improper operation during use. This design not only ensures the convenience of building block assembly but also significantly improves the stability of the assembly, enhances the practicality and assembly efficiency of the plug-in building blocks, and is low in cost and durable, providing users with a better gaming experience. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the plug-in building blocks provided in this embodiment of the present invention from one perspective.

[0019] Figure 2 This is a structural schematic diagram of the plug-in building blocks provided in another embodiment of the present utility model;

[0020] Figure 3 This is a schematic diagram of the locking cover in the plug-in building blocks provided in this embodiment of the utility model;

[0021] Figure 4 This is a schematic diagram of the connecting cover in the plug-in building blocks provided in this embodiment of the utility model.

[0022] In the diagram, 10 is the connecting cover; 11 is the cover base; 12 is the first recessed hole; 13 is the square protrusion; 20 is the locking cover; 21 is the locking base; 22 is the locking protrusion; 23 is the buckle; 24 is the elastic element; 25 is the protrusion; 26 is the long protrusion; 27 is the second recessed hole; and 28 is the third recessed hole. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings and 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 scope of protection of the present utility model.

[0024] In the description of this utility model, it should be noted that the directional terms such as "middle", "upper", "lower", "inner", and "outer" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this utility model.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature, and in this description of the utility model, "at least" means one or more, unless otherwise explicitly specified.

[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can also refer to a mechanical connection; they can refer to a direct connection or a connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] like Figure 1-4As shown, this utility model embodiment provides a plug-in building block. The outer surface of the plug-in building block is composed of multiple connecting faceplates 10 and a locking faceplate 20. The connecting faceplates 10 include four faceplate bases 11 arranged symmetrically in the center. The locking faceplate 20 includes two faceplate bases 11 and two locking bases 21 arranged symmetrically in the center. The two faceplate bases 11 and the two locking bases 21 are alternately arranged. The locking bases 21 are provided with locking protrusions 22 and elastic blocks protruding from the surface of the locking bases 21. The free end of the locking protrusions 22 is provided with buckles 23. The faceplate bases 11 are hollowed out with first recesses 12 for the locking protrusions 22, buckles 23 and elastic blocks to pass through. When two plug-in building blocks are spliced, the buckles 23 pass through the first recesses 12 and rotate at a preset angle to hook onto the faceplate bases 11. The side of the elastic block away from the buckles 23 abuts against the inner wall of the first recesses 12. The outer surfaces of the two plug-in building blocks are flush.

[0028] For ease of explanation, we define that when two interlocking building blocks are joined together, one of the interlocking building blocks needs to be rotated so that the inverted buckle 23 passes through the first recess 12 and then rotates by a preset angle in the first direction. When the two interlocking building blocks are separated, the inverted buckle 23 needs to be rotated by a preset angle in the second direction opposite to the first direction.

[0029] In this embodiment of the invention, when the two interlocking building blocks are separated, under the action of external force, as the inverted buckle 23 rotates in the second direction, the elastic stop continues to press against the inner wall of the first recess 12. The inner wall of the first recess 12 reacts against the elastic stop, causing the elastic stop to deform elastically until the inverted buckle 23 is completely inserted into the first recess 12, thus separating the two interlocking building blocks. Therefore, when no external force is applied, the elastic stop abuts against the inner wall of the first recess 12, preventing the elastic stop from deforming further. The elastic stop acts as a limit, keeping the inverted buckle 23 in the engaged position, thereby ensuring the stable splicing of the two interlocking building blocks.

[0030] This embodiment of the invention provides a locking cover 20 on the outer surface of the plug-in building blocks, with a locking protrusion 25 and an elastic stop on the locking cover 20. When two plug-in building blocks are assembled, the buckle 23 on the free end of the locking protrusion 25 passes through the first recess 12 and rotates to hook onto the cover base 11 at a preset angle. The elastic stop extends into the first recess 12 and abuts against the inner wall of the first recess 12. The locking cover 20 and the connecting cover 10 abut against each other and lock together, thus achieving mutual locking of the two plug-in building blocks. This effectively reduces the loosening or falling off of the building blocks due to slight vibration or improper operation during use. This design not only ensures the convenience of building block assembly but also significantly improves the stability of assembly, enhances the practicality and assembly efficiency of plug-in building blocks, is low in cost and durable, and provides users with a better gaming experience.

[0031] It should be noted that both the connecting cover 10 and the locking cover 20 are square plates of the same shape. The main body of the building block is composed of multiple connecting covers 10 and one locking cover 20. The interior of the main body of the building block is hollowed out to facilitate direct connection and locking between the building blocks. The connecting covers 10 and the locking cover 20 can be fixed to each other by ultrasonic bonding, glue bonding, screws and buckles, thereby ensuring the stability of the main body of the building block and the splicing effect, which is suitable for different splicing needs.

[0032] In addition, the square locking cover 20 is divided into four equal parts, including two cover bases 11 and two locking bases 21 arranged symmetrically in a central configuration, which are alternately arranged. That is, the two locking bases 21 are arranged diagonally, so that when the locking protrusions 22 and elastic stops provided on the two locking bases 21 respectively engage and lock the connecting cover 10 of another building block, the locking force is evenly distributed along the diagonal position of the cover. This not only avoids the situation where the building blocks are unstable due to the locking points being concentrated on one side, thus improving the overall stability and durability of the building blocks, but also hides the inverted buckle 23 when the two plug-in building blocks are locked together, making the structure cleaner and smoother, improving the overall appearance, and avoiding exposed connection points that affect aesthetics. The connecting cover 10 is also divided into four equal parts of cover bases 11 of the same shape, and each cover base 11 is provided with a square first recess 12 to engage and lock with the locking protrusions 22 and elastic stops. This design not only effectively solves the problem of loosening during the assembly of building blocks, but also improves the overall stability and convenience of building block assembly, enhancing the user experience and the practicality of the building blocks.

[0033] like Figure 1-4 As shown, in an optional embodiment of this utility model, the elastic stop includes an elastic element 24 and a protrusion 25 protruding from the surface of the elastic element 24. The locking base 21 has a second recessed hole 27 for the elastic element 24 to bend. One side of the elastic element 24 is fixed to the inner wall of the second recessed hole 27, and the other side has a protrusion 25 at its free end. When the buckle 23 is hooked onto the cover base 11, the cover base 11 presses the protrusion 25, and the elastic element 24 will force the protrusion 25 to extend into the first recessed hole 12 and abut against the inner wall of the first recessed hole 12, so that the locking cover 20 locks the connection to the cover 10.

[0034] Specifically, a preliminary lock is formed by the inverted buckle 23 at the free end of the locking protrusion 25 engaging with the hook of the cover base 11. When screwed in at a preset angle, the protrusion 25 on one plug-in block is pressed by the cover base 11 of the other plug-in block, causing the elastic element 24 to bend and deform. Under the restoring force of the elastic element 24, the protrusion 25 protruding from the surface of the elastic element 24 extends into the first recess 12 and abuts against its inner wall, forming a secondary lock. This double locking mechanism reasonably distributes the force points when the blocks are locked, making the mutual locking of the two plug-in blocks more secure and less likely to come apart, greatly improving the stability of the blocks after assembly and preventing loosening or falling off. The elastic element 24 and the protrusion 25 provide cushioning during the locking process, avoiding friction and wear caused by rigid contact, protecting the surface structure of the plug-in blocks, and extending their service life. The elastic element 24 can be made of materials such as silicone rubber, natural rubber or polyurethane. The use of the elastic element 24 not only improves the accuracy of the locking process, but also enhances the durability of the building blocks and the structural stability during long-term use by providing continuous elastic pressure, ensuring that the assembled building blocks can remain stable for a long time.

[0035] like Figure 3 As shown, in an optional embodiment of the present invention, two elastic elements 24 on a locking cover 20 are arranged in parallel, and a protrusion 25 protrudes from the surface of the locking base 21.

[0036] Specifically, by arranging two parallel elastic elements 24 on a locking cover 20, when two interlocking building blocks are assembled, after the inverted hook 23 is fastened to the cover base 11, the outer surfaces of the two interlocking building blocks are flush, and the protrusion 25 protruding from the surface of the locking base 21 can easily insert into the first recess 12. This allows the locking cover 20 to apply uniform locking force in two different directions simultaneously during the locking process, ensuring that the cover does not shift or tilt during assembly, thus improving the stability and firmness of the building block assembly. Furthermore, the parallel arrangement of the elastic elements 24 makes the design of the locking cover 20 more symmetrical, resulting in a more aesthetically pleasing appearance and a more stable mechanical structure, preventing parts from loosening or falling off due to uneven force. More importantly, the parallel arrangement of the elastic elements 24 distributes the locking force in each direction, avoiding excessive stress concentration in one direction and reducing the risk of fatigue damage to the elastic elements 24, thereby improving the durability and service life of the overall building block structure. The protrusion 25 protrudes from the surface of the locking base 21. The design of the protrusion 25 can better fit with the recess, increasing the firmness of the engagement and preventing the blocks from accidentally separating after assembly.

[0037] In an optional embodiment of this utility model, the depth of the first concave hole 12 is D, and the height of the protrusion 25 is d. Then the height range of the protrusion 25 is: d≥0.25D.

[0038] Specifically, to ensure that the protrusion 25 extends into the first recess 12 under the restoring action of the elastic stop and can form a stable abutment with the inner wall of the first recess 12, the height range of the protrusion 25 is: d≥0.25D. This can avoid the risk of the protrusion 25 falling off due to the squeezing action with the hole wall after it extends into the first recess 12, thereby improving the stability and reliability of the overall structure.

[0039] In an optional embodiment of this utility model, the height range of the protrusion 25 is: 0.25D≤d≤0.5D.

[0040] Specifically, by installing the protrusion 25 on the outer surface of the elastic stop, and designing the height range of the protrusion 25 to be 0.25D≤d≤0.5D, it can not only effectively ensure sufficient contact area between the protrusion 25 and the square protrusion 13 to guarantee the stability of each block during insertion and prevent loosening, but also facilitate the easy removal of the locking protrusion 22 and the elastic stop from the first recess 12 when disassembling the blocks. This effectively improves the operability and convenience of the pluggable blocks, providing users with a better gaming experience. The height d of the protrusion 25 represents the height from the outer surface of the elastic element 24 to the top of the protrusion 25. The depth of the first recess 12 is the same as the thickness of the square protrusion 13, both being depth D. To ensure the connection strength of the elastic element 24, the protrusion 25 and the elastic element 24 can be integrally molded.

[0041] It should be noted that by limiting the height range of the protrusion 25, a stable abutment is ensured between it and the inner wall of the first recess 12. If the height is too small, the blocking effect will be insufficient, which may lead to an insecure lock; if it is too large, it may increase the difficulty of installation and disassembly. The height range of 0.25D to 0.5D ensures sufficient abutment force and convenient operation. This height range design allows the protrusion 25 to effectively disperse the force when it abuts against the inner wall of the first recess 12, reducing single-point stress, preventing structural loosening or displacement, and thus improving the stability of the overall locking structure.

[0042] like Figure 1-3As shown, in an optional embodiment of this utility model, each of the first recesses 12 on the connecting cover 10 is provided with two square protrusions 13 on its inner wall, and each of the first recesses 12 on the locking cover 20 is provided with a long strip protrusion 26 on its inner wall near the elastic member 24. The inner walls of the other three first recesses 12 are each provided with two square protrusions 13. When two plug-in building blocks are spliced ​​together, the buckle 23 hooks onto two adjacent square protrusions 13 located on different inner walls in the first recesses 12, and the protrusion 25 abuts against the other two square protrusions 13 located diagonally opposite to the buckle 23 in the first recesses 12.

[0043] Specifically, by setting a locking protrusion 22 and an elastic stop on the locking cover 20, when two plug-in building blocks are assembled, the inverted buckle 23 hooks onto two adjacent square protrusions 13 located on different inner walls within the first recess 12. The protrusion 25 abuts against two other square protrusions 13 located diagonally opposite the inverted buckle 23 within the first recess 12, achieving multi-point simultaneous locking at diagonal points. This results in better stability and shock resistance for the two plug-in building blocks after assembly, ensuring a stable assembly even after multiple operations and movements, thus extending the lifespan of the building blocks. Compared to single-point locking, multi-point locking effectively disperses the locking force, reducing the possibility of the building blocks loosening due to excessive local force. It should be noted that the elasticity of the elastic element 24 allows it to flexibly adjust the precise abutment of the protrusion 25 and the square protrusions 13 during assembly, improving the accuracy of the assembly. At the same time, the elastic force provided by the elastic element 24 also makes the locking more stable, preventing the plug-in building blocks from loosening during use.

[0044] Furthermore, by placing a long, narrow protrusion within the first recess 12 on the locking cover 20, near the elastic element 24, the connection strength between the elastic element 24 and the locking base 21 is effectively enhanced. Since the elastic element 24 bears a certain force during contact, the addition of the long, narrow protrusion can disperse the stress, preventing deformation or damage during long-term use and improving the durability and stability of the building block structure. The design of the first recess 12 provides connection space for building blocks of different sizes. Because its inner wall is equipped with multiple square protrusions 13, this structure can adapt to building block components of different sizes, expanding the compatibility and assembly flexibility of the building blocks. This facilitates users combining building blocks of various sizes for assembly, enhances the adaptability and ease of operation of the building blocks with components of different sizes, and significantly optimizes the user's building block assembly experience.

[0045] like Figure 1-3 As shown, in an optional embodiment of the present invention, the protrusion 25 is a semi-circular or conical body, and the free end of the square protrusion 13 is provided with an arc-shaped surface that matches the protrusion 25 so that the protrusion 25 extends into the first concave hole 12.

[0046] Specifically, the protrusion 25 is a semi-circular or conical shape with a natural transition and curved structure, while the free end of the square tooth 13 has an arc-shaped surface adapted to the structure of the protrusion 25. This not only allows for a better tight fit with the tooth or mating surface, ensuring the stability of the protrusion 25 during contact and preventing loosening, but also reduces friction during insertion and contact, thereby reducing material wear and making locking and unlocking operations smoother, which helps extend the lifespan of the building blocks. The simple shape of the cone or semi-circular shape facilitates mold design and manufacturing, improving the production efficiency of building block products, reducing manufacturing costs, and ensuring consistency during mass production. Therefore, the shape design of the protrusion 25 and the square tooth 13 not only improves the operability and durability of the building blocks functionally, but also effectively improves the efficiency of the manufacturing process.

[0047] like Figure 1-3 As shown, in an optional embodiment of the present invention, the square protrusion 13 and the elongated protrusion are integrally formed with the inner wall of the first concave hole 12, and the elongated protrusion is connected to the adjacent square protrusion 13 on one side and is L-shaped.

[0048] Specifically, the elongated boss and the adjacent square protrusions 13 are connected as a single unit to form an L-shaped structure, making the overall rigidity of this part of the boss stronger. The one-piece molding design eliminates the connection weaknesses of traditional splicing methods, avoids loosening or breakage between parts, effectively enhances the strength and durability of the cover base 11, and ensures that the building blocks remain stable during repeated assembly and disassembly. Furthermore, the L-shaped boss distributes the force on the adjacent square protrusions 13, disperses the stress generated during the assembly process, avoids structural fatigue or damage caused by local stress concentration, and extends the service life of the building blocks.

[0049] like Figure 1-3 As shown, in an optional embodiment of this utility model, the locking base 21 is also hollowed out with a third recessed hole 28, which is located directly below the inverted buckle 23.

[0050] Specifically, by hollowing out a third recess 28 in the locking base 21, when the locking cover 20 abuts against the connecting cover 10, the third recess 28 provides a buffer space for the square protrusion 13. The end of the square protrusion 13 can temporarily extend into the third recess 28 to cope with any tilting or deformation of the square protrusion 13, reducing the resistance when the square protrusion 13 directly abuts against the outer surface of the locking base 21. This reduces the operating force required by the user when assembling the building blocks and improves the ease of use. At the same time, hollowing out multiple recesses on both the connecting cover 10 and the locking cover 20 can effectively reduce the overall weight of the building blocks, achieving a lightweight design and reducing the material cost of the building blocks.

[0051] like Figure 1-4As shown, in an optional embodiment of this utility model, the plug-in building block has a hexahedral structure, and the interior of the plug-in building block is hollowed out.

[0052] Specifically, the interlocking building blocks have a hexahedral structure, consisting of multiple connecting faceplates 10 and at least one locking faceplate 20 connected by square plates, forming an internally hollowed-out building block structure. This effectively reduces the overall weight of the building blocks, making them lighter and easier for children or other users to operate. While maintaining the structural strength of the building blocks, the use of materials is reduced, saving production costs and making this design more environmentally friendly and economical in the production process. More importantly, the hollowed-out internal design of the building blocks provides more possibilities for interaction and functional expansion between the blocks. Users can add other components or electronic modules inside the building blocks to expand their functionality, thereby realizing more diverse application scenarios, such as assembling smart toys and interactive devices.

[0053] The plug-in building blocks provided in this embodiment are applicable to pressure-connected building blocks, providing users with easy and stable building block toys. When using these plug-in building blocks, the locking mechanism, achieved by adjusting the angle of the locking cover 20, effectively locks the blocks together. The actual operation process is as follows: When assembling the plug-in building blocks, the locking cover 20 and the connecting cover 10 need to be aligned at a preset angle. The two locking protrusions 22 on the locking cover 20 are aligned with the two diagonally positioned first recesses 12 in the connecting cover 10 of the other plug-in building block. After the locking protrusions 22 are smoothly inserted into the first recesses 12, the locking cover 20 is then... The locking faceplate 20 or connecting faceplate 10 is rotated and aligned so that the inverted buckle 23 at the free end of the locking protrusion 22 hooks onto the two adjacent square protrusions 13 on different sides. During the rotation, due to the rotational pressure and the elastic force of the elastic element 24, the protrusion 25 at the free end of the elastic element 24 continues to penetrate into the first recess 12 and abuts against the two square protrusions 13 diagonally opposite to the locking protrusion 22. This securely locks the locking faceplate 20 and connecting faceplate 10 on the two interlocking blocks together, successfully completing the assembly. Under the elastic force of the elastic element 24, the protrusion 25 springs up and abuts against the inner wall of the square protrusion 13 when it reaches the corresponding position. This makes it difficult to rotate out in the original direction, and a certain force must be applied to rotate it out and release the lock, effectively improving the stability of the connection between the locking faceplate 20 and the connecting faceplate 10. This design not only ensures the ease of assembling the blocks, but also significantly improves the stability of the assembly, enhances the practicality and assembly efficiency of the interlocking blocks, and is low in cost, sturdy and durable, bringing users a better gaming experience.

[0054] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A type of interlocking building block, characterized in that, The outer surface of the plug-in building block consists of multiple connecting faceplates and one locking faceplate. The connecting faceplates include four faceplate bases arranged symmetrically in a central direction. The locking faceplate includes two faceplate bases and two locking bases arranged symmetrically in a central direction. The two faceplate bases and the two locking bases are alternately arranged. The locking base is provided with a locking protrusion and an elastic stop block protruding from the surface of the locking base. The free end of the locking protrusion is provided with a buckle. The faceplate base has a first recessed hole for the locking protrusion, the buckle, and the elastic stop block to pass through. When two plug-in building blocks are spliced ​​together, the buckle passes through the first recessed hole and rotates at a preset angle to hook onto the faceplate base. The side of the elastic stop block away from the buckle abuts against the inner wall of the first recessed hole. The outer surfaces of the two plug-in building blocks are flush.

2. The plug-in building blocks according to claim 1, characterized in that, The elastic stop includes an elastic element and a protrusion protruding from the surface of the elastic element. The locking base has a second recessed hole for the elastic element to bend. One side of the elastic element is fixed to the inner wall of the second recessed hole, and the other side has the protrusion at its free end. When the buckle is fastened to the cover base, the cover base presses the protrusion, and the elastic element forces the protrusion to extend into the first recessed hole and abut against the inner wall of the first recessed hole, so that the locking cover locks the connecting cover.

3. The plug-in building blocks according to claim 2, characterized in that, Two elastic elements on one of the locking faceplates are arranged in parallel, and the protrusions protrude from the surface of the locking base.

4. The plug-in building blocks according to claim 3, characterized in that, The depth of the first concave hole is D, and the height of the protrusion is d. The height range of the protrusion is: d≥0.25D.

5. The plug-in building blocks according to claim 4, characterized in that, The height range of the protrusion is: 0.25D≤d≤0.5D.

6. The plug-in building blocks according to claim 2, characterized in that, Two square protrusions are provided on the inner wall of each first recess on the connecting face cover. An elongated protrusion is provided on the inner wall of each first recess on the side near the elastic element on the locking face cover. Two square protrusions are provided on the inner wall of each of the other three first recesses. When two plug-in building blocks are spliced ​​together, the buckle hooks are engaged with two adjacent square protrusions on different inner walls in the first recess. The protrusions abut against the other two square protrusions in the first recess and located diagonally opposite to the buckle.

7. The plug-in building block according to claim 6, characterized in that, The protrusion is a semi-circular or conical shape, and the free end of the square protrusion has an arc-shaped surface that matches the protrusion so that the protrusion can extend into the first concave hole.

8. The plug-in building block according to claim 6, characterized in that, The square protrusion and the elongated protrusion are integrally formed with the inner wall of the first concave hole, and the elongated protrusion is connected to the adjacent square protrusion on one side and forms an L-shape.

9. The plug-in building blocks according to claim 1, characterized in that, The locking base also has a third recessed hole, which is located directly below the inverted buckle.

10. The plug-in building blocks according to claim 1, characterized in that, The plug-in building blocks have a hexahedral structure, and the interior of the plug-in building blocks is hollowed out.

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