Plastic building block assembly

By designing snap-fit ​​and stabilizing components on the plastic building blocks, a tight and stable connection between the blocks is achieved, solving the problem of loosening caused by bumps and ensuring the stability and reliability of the constructed structure.

CN223831781UActive Publication Date: 2026-01-27DONGGUAN YUETIAN TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202423149587.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-20
Publication Date
2026-01-27
Estimated Expiration
2034-12-20

AI Technical Summary

Technical Problem

Existing plastic building blocks are prone to loosening due to bumps and knocks during long-term use or display, affecting the stability and reliability of the constructed structure.

Method used

The design employs a snap-fit ​​assembly and a stabilizing assembly. The snap-fit ​​assembly achieves a tight vertical connection through threaded springs and locking posts, while the stabilizing assembly achieves horizontal stability through limiting holes and compression springs, enhancing the connection strength between the building blocks.

Benefits of technology

It improves the stability of the building blocks after assembly, preventing loosening caused by external impacts or pulling, and ensuring the reliability and long-term preservation of the assembled shape.

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Abstract

The utility model relates to the technical field of plastic building blocks, and discloses a plastic building block assembly which comprises a building block shell, a buckle assembly is arranged on the outer side of the building block shell, the buckle assembly comprises a square plate, the square plate is fixedly installed on the outer side of the building block shell, a short column is fixedly installed on the outer side of the square plate, and the short column is fixedly installed on the outer side of the building block shell. And a square groove is formed in the outer side of the short column. According to the plastic building block assembly, in order to further improve the firmness degree of the built plastic building block assembly, a buckle assembly is arranged, the assembly is matched with a square groove and a circular groove formed in the outer side of a short column, a threaded spring in the circular groove is connected with a clamping column, the clamping column can stretch out and draw back under the action of the spring, and when the clamping column is in butt joint with a cylinder of another building block, the short column can be inserted into the cylinder; the square columns enter the square grooves, the clamping columns are clamped into the round holes under pushing of the threaded springs, the cross sections of all the parts are matched in size, insertion is facilitated through the round corner design of the square grooves and the square columns, and the building blocks are tightly spliced through the buckle connection mode.
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Description

Technical Field

[0001] This utility model relates to the field of plastic building block technology, specifically a plastic building block assembly. Background Technology

[0002] Plastic building blocks are ingeniously designed and versatile building elements. They are designed to create a wide variety of structures and shapes through splicing and combination. Their main function and purpose is to provide a flexible and easy-to-use building tool, enabling users to quickly build various models, toys, educational tools and practical items according to their own creativity and needs.

[0003] Plastic building block components typically consist of multiple blocks of varying shapes and sizes. Each block is designed with precise slots and protrusions to ensure they can be tightly assembled. Their working principle is based on simple physical connections; the interlocking of slots and protrusions achieves a stable combination of blocks. The operation process is simple and easy to understand; users simply need to select suitable blocks according to their creativity. These plastic building block components demonstrate many advantages in practical applications, such as environmentally friendly materials, stable structure, flexible assembly, and easy disassembly and reassembly. This greatly facilitates user creation and reuse, while also reducing production costs and improving resource utilization efficiency.

[0004] However, in actual use, the above-mentioned equipment is inevitably subject to bumps and knocks during long-term display after assembly, which may cause the connection between the building blocks to loosen. In view of this, we propose a plastic building block assembly. Utility Model Content

[0005] The purpose of this invention is to provide a plastic building block assembly to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a plastic building block assembly, including a building block shell, wherein a snap-fit ​​assembly is provided on the outer side of the building block shell, and the snap-fit ​​assembly includes:

[0007] A square plate is fixedly installed on the outer side of the building block shell. A short column is fixedly installed on the outer side of the square plate. A square groove is opened on the outer side of the short column, and a round groove is opened on the inner side of the square groove.

[0008] A threaded spring, one end of which is fixedly installed inside the circular groove, and a locking post is fixedly installed at the other end of the threaded spring; a reinforcing block is fixedly installed inside the outer shell of the building block.

[0009] A cylindrical shell is fixedly installed inside the block shell, and a reinforcing block is fixedly installed at the other end of the cylindrical shell. A square column is fixedly installed inside the cylindrical shell, and a round hole is opened on the outer side of the square column. An isolation plate is fixedly installed inside the block shell.

[0010] Preferably, multiple sets of the square plate, short column, square groove, circular groove, threaded spring, locking post, reinforcing block, cylinder, square column, circular hole, and isolation plate are provided. The multiple sets of circular groove, threaded spring, locking post, and circular hole are arranged in a circular array with equal spacing around the center of the circular cross-section of the short column. The multiple sets of square plate, short column, square groove, circular groove, threaded spring, locking post, reinforcing block, cylinder, square column, circular hole, and isolation plate are arranged in a linear array with equal spacing on the outside of the building block shell.

[0011] Preferably, the inlet of the square groove is designed with rounded corners, the outer side of the square column is designed with rounded corners, the outer circular cross-section of the short column is the same size as the inner circular cross-section of the cylinder, the outer circular cross-section of the card column is the same size as the inner circular cross-section of the circular hole, the outer square cross-section of the square column is the same size as the inner square cross-section of the square groove, and the outer square cross-section of the square plate is the same size as the inner square cross-section of the block shell.

[0012] Preferably, a stabilizing component is provided on the outer side of the building block shell. The stabilizing component includes a limiting hole. The limiting hole is opened on the outer side of the building block shell. A long column groove is opened on the outer side of the square plate. One end of a compression spring is fixedly installed on the inner side of the long column groove. A stabilizing column is fixedly installed on the other end of the compression spring.

[0013] Preferably, multiple sets of the limiting holes, elongated grooves, compression springs, and stabilizing columns are provided, and the multiple sets of the limiting holes are linearly arranged at equal intervals on the outside of the building block shell, and the multiple sets of the elongated grooves, compression springs, and stabilizing columns are linearly arranged at equal intervals on the outside of the square plate, and the multiple sets of the limiting holes, elongated grooves, compression springs, and stabilizing columns are mirrored on the outside of the building block shell with the vertical centerline in the left-right direction of the building block shell as the mirror axis.

[0014] Preferably, the inner circular cross-section of the multiple sets of limiting holes is the same size as the outer circular cross-section of the multiple sets of stabilizing columns.

[0015] Compared with the prior art, the present invention provides a plastic building block assembly with the following advantages:

[0016] 1. To further enhance the sturdiness of the assembled plastic building block assembly, this assembly incorporates a snap-fit ​​component. This component features square and round grooves on the outer side of a short post. A threaded spring connects the snap-fit ​​post within the round groove, allowing it to extend and retract under the spring's action. When docked with the cylindrical section of another building block, the short post inserts into the cylinder, the square post enters the square groove, and the snap-fit ​​post engages with the round hole under the push of the threaded spring. The cross-sectional dimensions of each part are well-matched, and the rounded corners of the square groove and square post facilitate insertion. This snap-fit ​​connection method ensures a tight fit between the building blocks.

[0017] 2. To provide a more reliable and stable guarantee for the plastic building block assembly, a stabilizing component is provided. This component works with multiple sets of limiting holes on the building block shell. A compression spring connects the stabilizing column in the long column groove of the square plate. The cross-sectional size of the stabilizing column is the same as that of the limiting hole. After the building block is assembled by the snap-fit ​​assembly, the compression spring pushes the stabilizing column into the limiting hole, further locking the building block connection from the side. This prevents the snap-fit ​​from accidentally loosening due to external force collisions, pulling, etc., and provides a more reliable and stable guarantee for the shape built by the plastic building blocks. Attached Figure Description

[0018] Figure 1 This is a top view of the overall structure of this utility model.

[0019] Figure 2 This is a side view of a portion of the structure of this utility model assembled.

[0020] Figure 3 This is a bottom sectional view of part of the structure of this utility model;

[0021] Figure 4 This is a top side view of part of the structure of this utility model;

[0022] Figure 5 This utility model Figure 4 Enlarged structural diagram of region A in the middle;

[0023] Figure 6 This is a bottom view of part of the structure of this utility model;

[0024] Figure 7 This utility model Figure 6 Enlarged structural diagram of region B in the middle;

[0025] Figure 8 This is a top sectional view of part of the structure of this utility model;

[0026] Figure 9 This utility model Figure 8 A magnified structural diagram of region C in the middle.

[0027] In the diagram: 1. Block shell; 2. Clip assembly; 21. Square plate; 22. Short column; 23. Square groove; 24. Round groove; 25. Threaded spring; 26. Clip post; 27. Reinforcing block; 28. Cylinder; 29. ​​Square column; 210. Round hole; 211. Isolation plate; 3. Stabilizing assembly; 31. Limiting hole; 32. Long column groove; 33. Compression spring; 34. Stabilizing column. Detailed Implementation

[0028] 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.

[0029] Please see Figure 1-9 This utility model provides a technical solution: a plastic building block assembly, including a building block shell 1.

[0030] In one embodiment of this utility model, a snap-fit ​​assembly 2 is provided on the outer side of the block shell 1. The snap-fit ​​assembly 2 includes a square plate 21, which is fixedly installed on the outer side of the block shell 1. A short post 22 is fixedly installed on the outer side of the square plate 21. A square groove 23 is formed on the outer side of the short post 22. A circular groove 24 is formed on the inner side of the square groove 23. One end of a threaded spring 25 is fixedly installed on the inner side of the circular groove 24. A snap-fit ​​post 26 is fixedly installed on the other end of the threaded spring 25. One end of a reinforcing block 27 is fixedly installed on the inner side of the block shell 1. A cylinder 28 is fixedly installed on the inner side of the block shell 1. The other end of the reinforcing block 27 is fixedly installed on the outer side of the cylinder 28. A snap-fit ​​post 26 is fixedly installed on the inner side of the cylinder 28. A square column 29 has a circular hole 210 on its outer side. An isolation plate 211 is fixedly installed on the inner side of the block shell 1. Multiple sets of square plates 21, short columns 22, square grooves 23, circular grooves 24, threaded springs 25, locking posts 26, reinforcing blocks 27, cylinders 28, square columns 29, circular holes 210, and isolation plates 211 are arranged. These multiple sets of circular grooves 24, threaded springs 25, locking posts 26, and circular holes 210 are arranged in a circumferential array with equal spacing around the center of the circular cross-section of the short column 22. Furthermore, these multiple sets of square plates 21, short columns 22, square grooves 23, circular grooves 24, threaded springs 25, locking posts 26, reinforcing blocks 27, cylinders 28, square columns 29, and circular holes 210 are arranged in a circumferential array. The partition plates 211 are linearly arranged at equal intervals on the outside of the block shell 1. The entrance of the square groove 23 is designed with rounded corners, and the outer side of the square column 29 is designed with rounded corners. The outer circular cross-section of the short column 22 is the same size as the inner circular cross-section of the cylinder 28. The outer circular cross-section of the locking column 26 is the same size as the inner circular cross-section of the circular hole 210. The outer square cross-section of the square column 29 is the same size as the inner square cross-section of the square groove 23. The outer square cross-section of the square plate 21 is the same size as the inner square cross-section of the block shell 1. In the unassembled state, the locking column 26 is partially retracted into the circular groove 24 and subjected to the elastic force of the threaded spring 25. When it is connected to the cylinder of another block... When the blocks are joined, the short post 22 is smoothly inserted into the cylinder 28. At the same time, the square post 29 has a rounded corner design on the outside, and the entrance of the square groove 23 also has a rounded corner design, which makes it easy for the square post 29 to be inserted into the square groove 23. As the square post 29 is fully inserted into the square groove 23, the locking post 26 is pushed by the threaded spring 25 and then locked into the round hole 210 on the outside of the square post 29. This achieves a tight snap-fit ​​connection between the two blocks in the vertical direction, making the blocks firmly connected and not easy to loosen, which can maintain the stability of the building structure. At the same time, the reinforcing block 27 enhances the overall strength and stability of the block shell 1, ensuring the reliability of the snap-fit ​​assembly 2 during frequent use.

[0031] In one embodiment of this utility model, a stabilizing component 3 is provided on the outer side of the building block shell 1. The stabilizing component 3 includes a limiting hole 31. The limiting hole 31 is opened on the outer side of the building block shell 1. A long column groove 32 is opened on the outer side of the square plate 21. One end of a compression spring 33 is fixedly installed on the inner side of the long column groove 32. A stabilizing column 34 is fixedly installed on the other end of the compression spring 33. Multiple sets of limiting holes 31, long column grooves 32, compression springs 33 and stabilizing columns 34 are provided. Multiple sets of limiting holes 31 are linearly arranged at equal intervals on the outer side of the building block shell 1. Multiple sets of long column grooves 32, compression springs 33 and stabilizing columns 34 are linearly arranged at equal intervals on the outer side of the square plate 21. Multiple sets of limiting holes 31, long column grooves 32, compression springs 33 and stabilizing columns 34 are arranged around the outer side of the building block. The vertical centerline in the left-right direction of shell 1 is a mirror axis, and the mirror image is set on the outside of the building block shell 1. The inner circular cross-section of multiple sets of limiting holes 31 is the same size as the outer circular cross-section of multiple sets of stabilizing columns 34. After the buckle assembly 2 completes the splicing of two building blocks, the compression spring 33 is in a compressed state, which will generate elastic force to push the stabilizing column 34 to move outward. Under the action of the compression spring 33, the stabilizing column 34 is inserted into the limiting hole 31, which restricts the horizontal displacement of the building block from the side, and prevents the buckle from being accidentally released due to external force collision, pulling or other situations. This provides a stable guarantee for the building block construction, making the entire construction model more stable and reliable, extending the maintenance time of the construction model, and allowing users to build and display the building blocks with more peace of mind.

[0032] Working principle: In the unassembled state, the locking post 26 is partially retracted within the circular groove 24. Under the elastic force of the threaded spring 25, when it aligns with the cylinder 28 of another building block, the short post 22 smoothly inserts into the cylinder 28. Simultaneously, the square post 29 features rounded corners on its outer side, and the entrance to the square groove 23 also features rounded corners, facilitating the insertion of the square post 29 into the square groove 23. As the square post 29 fully enters the square groove 23, the locking post 26, pushed by the threaded spring 25, engages with the circular hole 210 on the outer side of the square post 29. This achieves a tight, vertically interlocking connection between the two building blocks, ensuring a secure and stable connection that prevents loosening and maintains the stability of the assembled structure. The reinforcement block 27 enhances the overall strength and stability of the block shell 1, ensuring the reliability of the buckle assembly 2 during frequent use. Furthermore, after the buckle assembly 2 completes the splicing of two blocks, the compression spring 33 is in a compressed state, generating elastic force to push the stabilizing post 34 to move outward. Under the action of the compression spring 33, the stabilizing post 34 is inserted into the limiting hole 31, restricting the horizontal displacement of the blocks from the side, preventing the buckles from accidentally loosening due to external collisions, pulling, etc., providing a stable guarantee for the block building, making the entire building structure more stable and reliable, extending the maintenance time of the building structure, and allowing users to build and display the blocks with more peace of mind.

[0033] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A plastic building block assembly, comprising a building block shell (1), characterized in that: The outer shell (1) of the building blocks is provided with a snap-fit ​​assembly (2), the snap-fit ​​assembly (2) comprising: Square plate (21), a square plate (21) is fixedly installed on the outside of the block shell (1), a short column (22) is fixedly installed on the outside of the square plate (21), a square groove (23) is opened on the outside of the short column (22), and a round groove (24) is opened on the inside of the square groove (23); A threaded spring (25) is fixedly installed on one end of the threaded spring (25) inside the circular groove (24), and a locking post (26) is fixedly installed on the other end of the threaded spring (25). A reinforcing block (27) is fixedly installed on one end of the block shell (1). A cylindrical (28) is fixedly installed on the inner side of the block shell (1). A reinforcing block (27) is fixedly installed on the other end of the outer side of the cylindrical (28). A square column (29) is fixedly installed on the inner side of the cylindrical (28). A round hole (210) is opened on the outer side of the square column (29). An isolation plate (211) is fixedly installed on the inner side of the block shell (1).

2. A plastic building block assembly according to claim 1, characterized in that: The square plate (21), short column (22), square groove (23), round groove (24), threaded spring (25), locking column (26), reinforcing block (27), cylinder (28), square column (29), round hole (210) and isolation plate (211) are provided in multiple sets.

3. A plastic building block assembly according to claim 1, characterized in that: The inlet of the square groove (23) is designed with rounded corners, the outer side of the square column (29) is designed with rounded corners, the outer circular cross-section of the short column (22) is the same size as the inner circular cross-section of the cylinder (28), the outer circular cross-section of the card column (26) is the same size as the inner circular cross-section of the round hole (210), the outer square cross-section of the square column (29) is the same size as the inner square cross-section of the square groove (23), and the outer square cross-section of the square plate (21) is the same size as the inner square cross-section of the block shell (1).

4. A plastic building block assembly according to claim 1, characterized in that: The outer side of the block shell (1) is provided with a stabilizing component (3). The stabilizing component (3) includes a limiting hole (31). The outer side of the block shell (1) is provided with a limiting hole (31). The outer side of the square plate (21) is provided with a long column groove (32). One end of a compression spring (33) is fixedly installed inside the long column groove (32). The other end of the compression spring (33) is fixedly installed with a stabilizing column (34).

5. A plastic building block assembly according to claim 4, characterized in that: Multiple sets of the limiting hole (31), the long column groove (32), the compression spring (33) and the stabilizing column (34) are provided.

6. A plastic building block assembly according to claim 4, characterized in that: The inner circular cross-section of the multiple sets of limiting holes (31) is the same size as the outer circular cross-section of the multiple sets of stabilizing columns (34).