Fabricated building wall rapid self-locking mechanism

By employing a self-locking mechanism of inserts and slots in prefabricated building walls, combined with a design of return springs and permanent magnets, the problems of low construction efficiency and unstable connections of lightweight partition walls are solved, achieving rapid and stable wall assembly and ensuring safety.

CN224228041UActive Publication Date: 2026-05-12HANGZHOU CHENJI HOUSING TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HANGZHOU CHENJI HOUSING TECH CO LTD
Filing Date
2025-06-27
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing prefabricated building walls suffer from low construction efficiency and insufficient connection strength during splicing. In particular, the connection of lightweight partition walls usually relies on bolt tightening, welding or grouting processes, resulting in low construction efficiency and unstable connections.

Method used

The design incorporates a first and second wall panel with inserts and slots, combined with a self-locking mechanism of a return spring and a limit block. After the insert is inserted into the slot, the variable stiffness of the return spring enables initial positioning and locking. The combination of the permanent magnet's attraction force provides double safety assurance, and the color display module provides real-time feedback on the installation status.

Benefits of technology

It enables rapid and stable wall assembly, reduces the time spent waiting for adhesive materials to cure or repeatedly tightening bolts, improves construction efficiency, and ensures the safety and stability of the building structure through a dual locking mechanism.

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Abstract

The utility model discloses an assembly-based building wall rapid self-locking mechanism, which comprises a first wall plate, a second wall plate, insertion blocks and insertion grooves, the second wall plate is arranged on one side of the first wall plate, the insertion blocks and the insertion grooves are uniformly arranged on two sides of the first wall plate and the second wall plate respectively, the insertion blocks are inserted into the insertion grooves correspondingly, and the insertion blocks are inserted into the insertion grooves correspondingly. And limiting grooves are formed in the two ends of each insertion block correspondingly, grooves are formed in the positions, at the two ends of each insertion groove, of the first wall plate and the second wall plate correspondingly, movable plates are arranged in the grooves through reset springs correspondingly, and limiting blocks are arranged at the ends, close to the insertion grooves, of the movable plates correspondingly. By installing the first wall plate, the second wall plate, the inserting block, the limiting groove, the inserting groove, the groove, the reset spring, the movable plate and the limiting block, preliminary positioning is achieved through rapid inserting connection of the inserting block and the inserting groove, automatic locking of the reset spring and the limiting block is matched, it is not needed to wait for curing of a binding material or repeatedly tighten a bolt, and the assembling time of a wall is shortened.
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Description

Technical Field

[0001] This utility model relates to the field of wall assembly technology, specifically to a quick self-locking mechanism for prefabricated building walls. Background Technology

[0002] Prefabricated building walls refer to building wall components that are prefabricated in a factory and then transported to the construction site for assembly. Depending on the materials and functions, they can be divided into precast concrete walls, lightweight partition boards, metal composite walls, etc. These walls, through standardized design, industrialized production and assembly construction, have advantages such as high production efficiency, stable quality, energy saving and environmental protection, and are one of the key technologies for realizing building industrialization.

[0003] Taking lightweight partition wall panels as an example, due to the variety of building types and the difficulty in matching room sizes with single-specification wall panels, it is necessary to flexibly adjust the length of the partition wall by splicing. Such wall panels usually rely on bolt fastening, welding or grouting processes when splicing, resulting in low construction efficiency. Although some wall panels do not require complicated construction processes, they are generally connected by inserting protrusions and grooves, which results in insufficient connection strength, so improvements are needed. Utility Model Content

[0004] The purpose of this invention is to provide a quick self-locking mechanism for prefabricated building walls to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quick self-locking mechanism for prefabricated building walls, comprising a first wall panel, a second wall panel, inserts, and slots. The second wall panel is provided on one side of the first wall panel, and inserts and slots are evenly provided on both sides of the first and second wall panels, respectively. The inserts are inserted into the slots corresponding to each other, and limit grooves are provided at both ends of the inserts. Grooves are provided in the first and second wall panels at both ends of the slots, and movable plates are provided inside the grooves through return springs. Limit blocks are provided at the end of the movable plates near the slots.

[0006] Preferably, a color display module is provided at one end of the slot, and the color display module includes a first color mark and a second color mark, which are sequentially arranged on the color display module.

[0007] Preferably, both ends of the color-developing module are provided with guide rods, and one end of each guide rod is connected to the inner wall of the slot. A spring sleeve is provided on each guide rod on one side of the color-developing module.

[0008] Preferably, guide blocks are provided at both ends of the color display module, and guide grooves matching the guide blocks are provided at both ends inside the slot.

[0009] Preferably, a viewing window is provided on both the first wall panel and the second wall panel on the outside of the color display module, and the viewing window is made of acrylic material.

[0010] Preferably, both sides of one end of the insertion block are provided with inclined surfaces, and the inclined surfaces are matched with the bottom of the limiting block.

[0011] Preferably, each of the limiting blocks is provided with a permanent magnet inside, and the inner wall of each limiting groove is provided with a magnetic coating.

[0012] Preferably, the reset springs are all conical springs, and the small end of the reset spring is connected to the moving plate, while the large end of the reset spring is connected to the inner wall of the groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This prefabricated building wall quick self-locking mechanism is equipped with a first wall panel, a second wall panel, an insert block, a limiting groove, a slot, a recess, a return spring, a moving plate, and a limiting block. When the first wall panel and the second wall panel are spliced, the insert block is first inserted into the slot to achieve initial positioning. When the insert block is inserted, it pushes the limiting block to move to both sides and squeezes the return spring in the recess until the limiting groove on the insert block moves to below the limiting block. Under the reset action of the return spring, the limiting block is locked into the limiting groove. The initial positioning is achieved through the quick insertion of the insert block and the slot. With the automatic locking of the return spring and the limiting block, there is no need to wait for the adhesive material to cure or repeatedly tighten the bolts, reducing the assembly time of the wall. The return spring adopts a conical structure. Its variable stiffness characteristics provide less resistance during the initial insertion, which is convenient for alignment. After full insertion, the stiffness increases, providing a stable locking force. This avoids the problem of traditional constant stiffness springs causing the insert block to be difficult to insert due to excessive spring force or the locking to be unstable due to insufficient spring force, thus ensuring the safety of the building structure. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a front view structural diagram of the present utility model;

[0016] Figure 2 This is an enlarged cross-sectional view of the protrusion and the first groove of this utility model.

[0017] Figure 3 This is a schematic diagram of the color display module structure of this utility model;

[0018] Figure 4 For the present utility model Figure 2 Enlarged cross-sectional structural diagram at point A in the middle;

[0019] Figure 5 This is a schematic diagram of the cross-sectional structure of the protrusion of this utility model.

[0020] In the diagram: 1. First wall panel; 2. Second wall panel; 3. Insert block; 4. Slot; 5. Viewing window; 6. Limiting groove; 7. Color display module; 8. Groove; 9. Reset spring; 10. Moving plate; 11. Limiting block; 12. Permanent magnet; 13. Guide groove; 14. Guide block; 15. Guide rod; 16. Spring sleeve; 17. First color mark; 18. Second color mark; 19. Magnetic coating; 20. Inclined surface. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0022] Please see Figure 1-5 An embodiment of this utility model is provided: a quick self-locking mechanism for prefabricated building walls, including a first wall panel 1, a second wall panel 2, a plug 3 and a slot 4. The second wall panel 2 is provided on one side of the first wall panel 1, and the plug 3 and the slot 4 are evenly provided on both sides of the first wall panel 1 and the second wall panel 2 respectively.

[0023] Bring the splicing surfaces of the first wall panel 1 and the second wall panel 2 close together, align the insert 3 with the corresponding slot 4, and prepare to insert it.

[0024] Limiting grooves 6 are provided at both ends of the insert block 3. Grooves 8 are provided in the first wall plate 1 and the second wall plate 2 at both ends of the slot 4. A moving plate 10 is provided inside the groove 8 through a reset spring 9. A limiting block 11 is provided at the end of the moving plate 10 near the slot 4.

[0025] Both sides of one end of the insert block 3 are provided with inclined surfaces 20, and the inclined surfaces 20 are matched with the bottom of the limiting block 11.

[0026] Insert block 3 is inserted into slot 4, and its end bevel 20 contacts the bottom of limit block 11, pushing limit block 11 to move into groove 8. Limit block 11 drives moving plate 10 to compress return spring 9.

[0027] All return springs 9 are conical springs, and the small end of the return spring 9 is connected to the moving plate 10, while the large end of the return spring 9 is connected to the inner wall of the groove 8.

[0028] The initial compression has low stiffness, providing less resistance to facilitate the insertion of the insert 3. The insert 3 continues to be inserted until the limiting groove 6 on it moves to the position directly below the limiting block 11. After the limiting groove 6 is in place, the return spring 9 is reset. Utilizing its variable stiffness characteristics, it provides a larger thrust in the later stage of compression, pushing the limiting block 11 into the limiting groove 6 to achieve a firm self-locking.

[0029] The interior of each limiting block 11 is provided with a permanent magnet 12, and the inner wall of each limiting groove 6 is provided with a magnetic coating 19.

[0030] The attraction force generated by the permanent magnet 12 and the magnetic coating 19 in the limiting groove 6 reduces the probability of the limiting block 11 loosening in the limiting groove 6. In the extreme case of the failure of the reset spring 9, the magnetic force can still maintain the basic locked state, providing double safety protection.

[0031] A color display module 7 is provided at one end of the slot 4, and a viewing window 5 is provided on the first wall plate 1 and the second wall plate 2 on the outside of the color display module 7.

[0032] The color display module 7 includes a first color mark 17 and a second color mark 18, which are sequentially disposed on the color display module 7.

[0033] Guide rods 15 pass through both ends of the color display module 7, and one end of each guide rod 15 is connected to the inner wall of the slot 4. A spring sleeve 16 is provided on each guide rod 15 on one side of the color display module 7.

[0034] During the full insertion of the insert block 3, the color display module 7 is pushed to move under the constraint of the guide rod 15 and the guide groove 13, so that the first color mark 17 is hidden and the second color mark 18 is exposed through the viewing window 5, intuitively showing that the installation is complete;

[0035] The color display module 7 is directly integrated into the slot 4 and is triggered synchronously with the locking action, providing real-time feedback on the installation status. Operators can quickly confirm whether the wall is installed in place without additional tools.

[0036] All five viewing windows are made of acrylic material. Acrylic material has a high light transmittance, so even under backlight or low light conditions, operators can still quickly identify the installation status.

[0037] The guide rod 15 constrains the movement trajectory of the color display module 7, ensuring a smooth and uninterrupted color mark switching process and avoiding display errors caused by vibration or installation angle deviation. The spring sleeve 16 provides cushioning when the color display module is reset, reducing component collision and wear.

[0038] Guide blocks 14 are provided at both ends of the color display module 7, and guide grooves 13 matching the guide blocks 14 are provided at both ends inside the slot 4, which play a limiting and guiding role when the color display module 7 moves.

[0039] Working principle: In this embodiment, the splicing surfaces of the first wall panel 1 and the second wall panel 2 are brought close together, so that the insert 3 is aligned with the corresponding slot 4, ready for insertion. The insert 3 is inserted along the slot 4, and its end bevel 20 contacts the bottom of the limiting block 11, pushing the limiting block 11 into the groove 8. The limiting block 11 drives the moving plate 10 to compress the return spring 9. Because the return spring 9 is a conical spring, its stiffness is small during initial compression, providing less resistance to facilitate the insertion of the insert 3. The insert 3 continues to be inserted until the limiting groove 6 on it moves to the position directly below the limiting block 11. After the limiting groove 6 is in place, the return spring 9 returns to its original position. Utilizing its variable stiffness characteristics, it provides a larger thrust in the later stage of compression, pushing the limiting block 11 into the limiting groove 6. The device is now firmly self-locking. The interior of each limiting block 11 is equipped with a permanent magnet 12, which attracts the magnetic coating 19 in the limiting groove 6. This reduces the probability of the limiting block 11 becoming loose in the limiting groove 6. Even in the extreme case where the reset spring 9 fails, the magnetic force can still maintain a basic locked state, providing double safety protection. During the full insertion of the insert block 3, the color display module 7 is pushed to move under the constraint of the guide rod 15 and the guide groove 13, so that the first color mark 17 is hidden and the second color mark 18 is exposed through the viewing window 5, which intuitively shows that the installation is complete. The color display module 7 is directly integrated into the slot 4 and is triggered synchronously with the locking action, providing real-time feedback on the installation status. Operators can quickly confirm whether the wall is installed in place without additional tools.

[0040] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0041] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0042] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0043] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A rapid self-locking mechanism for prefabricated building walls, characterized in that, The device includes a first wall panel (1), a second wall panel (2), inserts (3), and slots (4). The second wall panel (2) is provided on one side of the first wall panel (1), and inserts (3) and slots (4) are evenly provided on both sides of the first wall panel (1) and the second wall panel (2). The inserts (3) are inserted into the slots (4) respectively, and the two ends of the inserts (3) are provided with limiting grooves (6). The first wall panel (1) and the second wall panel (2) at both ends of the slots (4) are provided with grooves (8), and the inside of the grooves (8) is provided with moving plates (10) through reset springs (9). The end of the moving plates (10) near the slots (4) is provided with limiting blocks (11).

2. The quick self-locking mechanism for prefabricated building walls according to claim 1, characterized in that: One end of each slot (4) is provided with a color display module (7), and the color display module (7) includes a first color mark (17) and a second color mark (18), which are arranged sequentially on the color display module (7).

3. The quick self-locking mechanism for prefabricated building walls according to claim 2, characterized in that: Both ends of the color display module (7) are provided with guide rods (15), and one end of each guide rod (15) is connected to the inner wall of the slot (4). A spring sleeve (16) is provided on each guide rod (15) on one side of the color display module (7).

4. The quick self-locking mechanism for prefabricated building walls according to claim 2, characterized in that: The color display module (7) is provided with guide blocks (14) at both ends, and the slot (4) is provided with guide grooves (13) that match the guide blocks (14) at both ends.

5. A quick self-locking mechanism for prefabricated building walls according to claim 2, characterized in that: The color display module (7) has a viewing window (5) on the first wall panel (1) and the second wall panel (2) on the outside, and the viewing window (5) is made of acrylic material.

6. The quick self-locking mechanism for prefabricated building walls according to claim 1, characterized in that: Both sides of one end of the insert (3) are provided with inclined surfaces (20), and the inclined surfaces (20) are matched with the bottom of the limiting block (11).

7. A quick self-locking mechanism for prefabricated building walls according to claim 1, characterized in that: The interior of each limiting block (11) is provided with a permanent magnet (12), and the inner wall of each limiting groove (6) is provided with a magnetic coating (19).

8. A quick self-locking mechanism for prefabricated building walls according to claim 1, characterized in that: The reset springs (9) are all tapered springs, and the small end of the reset springs (9) is connected to the moving plate (10), while the large end of the reset springs (9) is connected to the inner wall of the groove (8).