A BIM-based prefabricated building structure
By using fixed assembly blocks, spring telescopic rods, and movable assembly limit blocks in prefabricated building structures, the gap problem between modules after assembly is solved, and the integrity and connectivity of the structure are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 浙江德辉建设集团有限公司
- Filing Date
- 2025-08-06
- Publication Date
- 2026-07-17
AI Technical Summary
In existing BIM-based prefabricated building structures, the structural fixation of flanges and grooves leads to errors in actual components, resulting in gaps after module assembly and affecting the overall integrity.
The design employs fixed assembly inserts, spring telescopic rods, and movable assembly limit blocks. By retracting the spring telescopic rods and adjusting the movement of the limit blocks, assembly errors are overcome, ensuring seamless module connection. Furthermore, the fasteners provide a fixed connection, enhancing overall integrity.
It effectively solved the problem of gaps between modules after assembly, improved the integrity and connectivity of the structure, and ensured the stability and consistency of the assembled building structure.
Smart Images

Figure CN224514390U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building structure technology, specifically to a BIM-based prefabricated building structure. Background Technology
[0002] Prefabricated buildings utilize BIM technology to create sophisticated virtual models for architectural planning, design, and construction simulation. These virtual models can be modified multiple times before construction to meet client needs, save on building materials, and offer more user-friendly and diverse designs. Furthermore, prefabricated building structural components are manufactured in factories, allowing for the installation of insulation layers during production, improving the building's thermal and sound insulation performance, reducing energy consumption, and extending the lifespan of insulation materials. The prefabricated components are then transported to the site for assembly, resulting in faster construction speeds, reduced construction waste, and lower construction costs.
[0003] A search revealed a BIM-based prefabricated building structure in application document CN219548080U. This BIM-based prefabricated building structure, through the tight interlocking of flanges and grooves on the side of the walls, prevents excessive gaps that could lead to substandard thermal insulation and waterproofing performance. The insulation and waterproofing layers placed between them significantly improve the thermal insulation and waterproofing performance at the connection nodes. Furthermore, the tight interlocking between the flanges and grooves allows for mutual restraint between wall panels, thereby improving overall integrity.
[0004] However, there are still some defects and shortcomings that need to be optimized. The specific defects and shortcomings are as follows: the flange and groove structure in the BIM-based prefabricated building structure is relatively fixed, while the actual components have certain errors, which makes it easy for gaps to exist between modules after assembly, affecting the integrity of the entire structure. Therefore, it is necessary to design a BIM-based prefabricated building structure to solve the problems mentioned in the background technology. Utility Model Content
[0005] The purpose of this utility model is to provide a BIM-based prefabricated building structure, which can effectively solve the technical problem that the flange and groove structures in existing BIM-based prefabricated building structures are relatively fixed, while the actual components have certain errors, which leads to gaps between modules after assembly and affects the integrity of the entire structure.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A BIM-based prefabricated building structure includes several sets of BIM-based prefabricated building modules. Each set of BIM-based prefabricated building modules includes a building wall. A fixed assembly block is fixedly installed on one end face of the building wall, and a movable assembly limiting block is movably installed on the other end face of the building wall away from the fixed assembly block via a spring telescopic rod. The building wall is fixedly connected to the adjacent set via fasteners.
[0008] As a preferred embodiment of this utility model, the building wall has a movable adjustment cavity adapted to the movable assembly limiting block on one end face, and the upper and lower end faces of the movable adjustment cavity are provided with limiting grooves.
[0009] As a preferred embodiment of this utility model, an anti-misalignment block is fixedly installed on the side of the fixed assembly block away from the building wall, and the length and width of the fixed assembly block are equal to the length and width of the movable assembly limiting block.
[0010] As a preferred embodiment of this utility model, the spring telescopic rod is provided in multiple sets, and the multiple sets of spring telescopic rods are equidistantly distributed inside the movable adjustment cavity. The two ends of any one set of spring telescopic rods are respectively fixedly connected to the side of the movable assembly limiting block near the building wall and the side of the inner wall of the movable adjustment cavity near the fixed assembly insert.
[0011] As a preferred embodiment of this utility model, the movable assembly limiting block has an anti-misalignment groove adapted to the anti-misalignment fixing block on the side away from the building wall. The upper and lower end faces of the movable assembly limiting block are fixedly installed with limiting sliders corresponding to the limiting grooves near the spring telescopic rods, and the limiting sliders and the limiting grooves are slidably connected.
[0012] As a preferred embodiment of this utility model, the fastener includes a fixed plate that is fixedly installed at the upper and lower ends of one side of the building wall, and a clip and a screw are respectively fixedly installed on the side of the fixed plate away from the building wall near the two ends.
[0013] As a preferred embodiment of this utility model, the clamp is fixedly connected by a fixed shaft and a fixed plate, and a U-shaped fixed groove is provided at the end of the clamp away from the fixed shaft. The screw is equipped with a locking nut and an anti-slip washer.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] In this invention, the design of fixed assembly inserts, spring telescopic rods, and movable assembly limiting blocks can overcome the errors generated by prefabricated building modules after actual production during assembly, ensuring that there are no gaps between the assembled modules, improving the connectivity between various structures, and making the entire structure have strong integrity. This effectively solves the technical problem in existing BIM-based prefabricated building structures where the flange and groove structures are relatively fixed, while the actual components have certain errors, leading to gaps between the assembled modules and affecting the integrity of the entire structure. Attached Figure Description
[0016] Figure 1 A schematic diagram of the three-dimensional assembly structure of the prefabricated building modules in this utility model. Figure 1 ;
[0017] Figure 2 A schematic diagram of the three-dimensional assembly structure of the prefabricated building modules in this utility model. Figure 2 ;
[0018] Figure 3 A three-dimensional structural diagram of the prefabricated building module in this utility model;
[0019] Figure 4 This is a three-dimensional enlarged structural diagram of the movable assembly limiting block in this utility model;
[0020] Figure 5 This is a three-dimensional magnified structural diagram of the firmware in this utility model.
[0021] In the diagram: 1. Prefabricated building module; 2. Building wall; 21. Movable adjustment cavity; 22. Limiting slide groove; 3. Fixed assembly insert; 31. Anti-misalignment block; 4. Spring telescopic rod; 5. Movable assembly limiting block; 51. Anti-misalignment groove; 52. Limiting slider; 6. Fixture; 61. Fixing plate; 62. Clamp; 621. Fixing shaft; 622. U-shaped fixing groove; 63. Screw; 631. Locking nut; 632. Anti-slip pad. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all 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 protection scope of the present utility model.
[0023] Example:
[0024] This utility model embodiment provides a BIM-based prefabricated building structure, which can effectively solve the technical problem that the flange and groove structures in the existing BIM-based prefabricated building structures are relatively fixed, while the actual components have certain errors, which leads to gaps between modules after assembly and affects the integrity of the whole structure.
[0025] Please see Figures 1-5 This utility model provides a technical solution:
[0026] A BIM-based prefabricated building structure includes several sets of BIM-based prefabricated building modules 1. Each set of BIM-based prefabricated building modules 1 includes a building wall 2. A fixed assembly block 3 is fixedly installed on one end face of the building wall 2. A movable assembly limiting block 5 is movably installed on the end face of the building wall 2 away from the fixed assembly block 3 through a spring telescopic rod 4. The building wall 2 is fixedly connected to the adjacent set through fasteners 6. The design of the fixed assembly block 3, the spring telescopic rod 4 and the movable assembly limiting block 5 can overcome the errors generated by the prefabricated building modules after actual production during assembly, ensure that there are no gaps between the modules after assembly, improve the connectivity between the various structures, and make the whole structure have strong integrity.
[0027] Among them, the building wall 2 has a movable adjustment cavity 21 adapted to the movable assembly limiting block 5 on one end face. Multiple sets of spring telescopic rods 4 are provided, and the multiple sets of spring telescopic rods 4 are equidistantly distributed inside the movable adjustment cavity 21. The two ends of any set of spring telescopic rods 4 are fixedly connected to the side of the movable assembly limiting block 5 near the building wall 2 and the side of the inner wall of the movable adjustment cavity 21 near the fixed assembly insert 3, respectively. When assembling several sets of BIM-based prefabricated building modules 1, the building walls 2 of two adjacent sets can be brought closer together, and one set of building walls 2 can be... The fixed assembly insert 3 on the wall 2 is aligned with the movable assembly limiting block 5 on the other wall 2 and pressure is applied. Under the action of external force, the fixed assembly insert 3 is continuously squeezed towards the movable assembly limiting block 5. At this time, the spring telescopic rod 4 begins to retract and the movable assembly limiting block 5 is fully inserted into the movable adjustment cavity 21 until both the fixed assembly insert 3 and the movable assembly limiting block 5 are completely inserted into the cavity 21. At this time, the two adjacent wall 2 are seamlessly connected and fixedly connected by the fastener 6. This process is repeated until several sets of BIM-based prefabricated building modules 1 are assembled.
[0028] Furthermore, in this embodiment, please refer to Figure 3 and Figure 4The upper and lower end faces of the movable adjustment cavity 21 are provided with limit grooves 22. The upper and lower end faces of the movable assembly limit block 5 are fixedly installed with limit sliders 52 corresponding to the limit grooves 22 near the spring telescopic rod 4. The limit sliders 52 and the limit grooves 22 are slidably connected. The design of the limit grooves 22 and the limit sliders 52 makes the movable assembly limit block 5 more stable, reliable and smooth when it moves, which helps to ensure the stability of the assembly.
[0029] Furthermore, in this embodiment, please refer to Figure 3 and Figure 4 A misalignment prevention block 31 is fixedly installed on the side of the fixed assembly block 3 away from the building wall 2. The length and width of the fixed assembly block 3 are equal to the length and width of the movable assembly limiting block 5. The side of the movable assembly limiting block 5 away from the building wall 2 has an anti-misalignment groove 51 that is compatible with the anti-misalignment prevention block 31. When a set of fixed assembly blocks 3 on the building wall 2 is aligned with another set of movable assembly limiting blocks 5 on the building wall 2, the anti-misalignment prevention block 31 can be embedded in the anti-misalignment groove 51 to ensure that the two can be accurately connected and prevent misalignment, which is conducive to the fixed assembly block 3 being able to smoothly enter the interior of the movable adjustment cavity 21.
[0030] Furthermore, in this embodiment, please refer to Figure 5 The fastener 6 includes a fixed plate 61 fixedly installed at the upper and lower ends of one side of the building wall 2. On the side of the fixed plate 61 away from the building wall 2, near the two ends, a clip 62 and a screw 63 are fixedly installed respectively. The clip 62 is fixedly connected to the fixed plate 61 through a fixed shaft 621. The end of the clip 62 away from the fixed shaft 621 has a U-shaped groove 622. The screw 63 is equipped with a locking nut 631 and an anti-slip washer 632. When assembling the two sets of building walls 2, the screw 63 will enter into the U-shaped groove 622 on the adjacent clip 62. After positioning, the anti-slip washer 632 and the locking nut 631 can be installed on the screw 63 in sequence, which is not only convenient to operate, but also has good stability.
[0031] In this embodiment, the specific implementation scenario is as follows: When assembling several sets of BIM-based prefabricated building modules 1, adjacent building walls 2 can be brought closer together, and the fixed assembly insert 3 on one set of building walls 2 can be aligned with the movable assembly limiting block 5 on the other set of building walls 2. Simultaneously, pressure is applied. Under the action of external force, the fixed assembly insert 3 continuously presses against the movable assembly limiting block 5. At this time, the spring telescopic rod 4 begins to retract, and the movable assembly limiting block 5 continues to retract until both the fixed assembly insert 3 and the movable assembly limiting block 5 are completely inside the movable adjustment cavity 21. The adjacent building walls 2 are seamlessly connected, and the screw 63 will enter the U-shaped fixing groove 622 on the adjacent clamp 62. After positioning, the anti-slip pad 632 and locking nut 631 can be installed on the screw 63 in sequence. This process is repeated until several sets of BIM-based prefabricated building modules 1 are assembled. Compared with the existing BIM-based prefabricated building structure, it can overcome the errors generated by the prefabricated building modules after actual production, ensure that there are no gaps between the modules after assembly, improve the connection between various structures, and make the whole structure have strong integrity.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A BIM-based prefabricated building structure, comprising several sets of BIM-based prefabricated building modules (1), characterized in that: Each of the several groups of BIM-based prefabricated building modules (1) includes a building wall (2). A fixed assembly block (3) is fixedly installed on one end face of the building wall (2). A movable assembly limiting block (5) is movably installed on the end face of the building wall (2) away from the fixed assembly block (3) through a spring telescopic rod (4). The building wall (2) is fixedly connected to the adjacent group through fasteners (6).
2. The prefabricated building structure based on BIM according to claim 1, characterized in that: The building wall (2) has a movable adjustment cavity (21) adapted to the movable assembly limiting block (5) on one end face. The upper and lower end faces of the movable adjustment cavity (21) are provided with limiting grooves (22).
3. A BIM-based prefabricated building structure according to claim 1, characterized in that: The fixed assembly insert (3) is fixedly installed with an anti-misalignment block (31) on the side away from the building wall (2), and the length and width of the fixed assembly insert (3) are equal to the length and width of the movable assembly limiting block (5).
4. A BIM-based prefabricated building structure according to claim 1, characterized in that: The spring telescopic rod (4) is provided in multiple sets, and the multiple sets of spring telescopic rods (4) are equidistantly distributed inside the movable adjustment cavity (21). The two ends of any one set of the multiple sets of spring telescopic rods (4) are respectively fixedly connected to the side of the movable assembly limiting block (5) near the building wall (2) and the side of the inner wall of the movable adjustment cavity (21) near the fixed assembly insert (3).
5. A BIM-based prefabricated building structure according to claim 1, characterized in that: The movable assembly limiting block (5) has an anti-misalignment groove (51) adapted to the anti-misalignment fixing block (31) on one side away from the building wall (2). The upper and lower end faces of the movable assembly limiting block (5) are fixedly installed with limiting sliders (52) corresponding to the limiting slide groove (22) near the spring telescopic rod (4), and the limiting sliders (52) and the limiting slide groove (22) are slidably connected.
6. A BIM-based prefabricated building structure according to claim 1, characterized in that: The fastener (6) includes a fixed plate (61) fixedly installed at the upper and lower ends of one side of the building wall (2). The fixed plate (61) is fixedly installed with a clip (62) and a screw (63) at the two ends of the side away from the building wall (2).
7. A BIM-based prefabricated building structure according to claim 6, characterized in that: The clamp (62) is fixedly connected to the fixed shaft (621) and the fixed plate (61). The clamp (62) has a U-shaped groove (622) at the end away from the fixed shaft (621). The screw (63) is equipped with a locking nut (631) and an anti-slip pad (632).