A quick-connection structure for prefabricated buildings

By using a quick-connect structure for prefabricated buildings, rapid assembly is achieved through limiting blocks and elastic retraction, and stability is enhanced through an adjustment mechanism. This solves the problem of cumbersome steps in prefabricated building construction, and improves construction efficiency and building safety.

CN224281620UActive Publication Date: 2026-05-26CHINA MCC 2 GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA MCC 2 GRP CO LTD
Filing Date
2025-05-12
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The existing prefabricated building structures have complicated installation steps during construction, which leads to delays in the construction progress.

Method used

It adopts a quick-connect structure for prefabricated buildings, including components such as assembly frames, limit blocks, limit plates, connecting frames and springs. Quick assembly is achieved through the insertion and elastic retraction of the limit blocks, and stability is enhanced by the adjustment mechanism.

Benefits of technology

It simplifies the connection process, improves construction efficiency, ensures the stability of the connection and the overall safety of the building, and avoids delays in the construction schedule.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a quick-connect structure for prefabricated buildings. The quick-connect structure includes prefabricated wall panels and a connecting mechanism. The connecting mechanism includes an assembly frame and limiting blocks. The assembly frame has two slots, each containing two adjacent prefabricated wall panels. The limiting blocks pass through both sides of the two slots and are inserted into the two prefabricated wall panels. The limiting blocks on the same side of the two slots are connected as a whole. This utility model's quick-connect structure for prefabricated buildings simplifies the connection process for adjacent prefabricated wall panels by connecting the limiting blocks on the same side of the two slots into a whole. This allows for the insertion of all limiting blocks on the same side of the two slots with only one insertion operation, simplifying the connection steps for adjacent prefabricated wall panels, accelerating construction progress, and avoiding the cumbersome connection steps and delays caused by multiple limiting block insertion operations.
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Description

Technical Field

[0001] This utility model relates to the field of prefabricated buildings, and in particular to a quick connection structure for prefabricated buildings. Background Technology

[0002] Prefabricated construction refers to transferring a large amount of on-site work from traditional construction methods to factories. Building components and accessories (such as floor slabs, wall panels, stairs, balconies, etc.) are prefabricated in factories, transported to the construction site, and assembled on-site using reliable connection methods. With the development of modern industrial technology, building houses can be mass-produced like machine manufacturing. Simply transport the prefabricated house components to the construction site and assemble them.

[0003] Chinese utility model patent CN221345915U discloses a prefabricated building structure that facilitates rapid assembly and disassembly. The structure includes prefabricated walls, with two adjacent walls connected by prefabricated columns. Each prefabricated column has slots on both sides, and the prefabricated walls are fixedly installed within these slots. Sealing gaskets are placed inside the slots, and the prefabricated walls and columns are secured by several sets of fastening devices. By using these fastening devices, when disassembly is required, pulling a pull plate disengages the locking blocks from the slots, facilitating disassembly. This design is suitable for prefabricated buildings and solves the problem of cumbersome disassembly due to bolt-fastened connections in existing prefabricated buildings, improving disassembly efficiency and facilitating rapid installation and disassembly.

[0004] In the construction of existing prefabricated building structures, operators need to repeatedly pull the fastening plates to ensure that each set of fastening devices can be correctly installed and fixed. A large number of prefabricated walls and columns need to be connected. If the fastening devices need to be operated multiple times at each connection point, the installation process is cumbersome, which will seriously delay the construction progress. Utility Model Content

[0005] This utility model provides a quick-connection structure for prefabricated buildings, which can accelerate the construction progress.

[0006] This utility model provides a quick-connect structure for prefabricated buildings, including prefabricated wall panels and a connecting mechanism. The connecting mechanism includes an assembly frame and limiting blocks. The assembly frame has two slots, and two adjacent prefabricated wall panels are respectively arranged in the two slots. The limiting blocks pass through both sides of the two slots and are inserted into the two prefabricated wall panels. The limiting blocks located on the same side of the two slots are connected as a whole.

[0007] In some embodiments, the connecting mechanism further includes limiting plates, connecting frames, and a first spring. Four limiting plates are respectively disposed on the outer sides of the two slots, and limiting blocks are fixed to the side of each limiting plate facing the slot. Two connecting frames are respectively disposed on both sides of the assembly frame, and each connecting frame is fixedly connected to the two limiting plates located on the same outer side of the two slots. The first spring has a first end connected to the assembly frame and a second end connected to the connecting frame.

[0008] In some embodiments, each of the four limiting plates is fixed with a plurality of limiting blocks, and each limiting block is arranged along the length direction of the slot.

[0009] In some embodiments, all four limiting plates are strip-shaped structures, and the length direction of each limiting plate is the same as the arrangement direction of each limiting block.

[0010] In some embodiments, four limiting plates are respectively attached to the outer walls of the two card slots on both sides.

[0011] In some embodiments, the first end of the first spring extends into the assembly frame and is fixedly connected to the inner wall of the assembly frame, and the second end is fixedly connected to the outer wall of the connecting frame that fits against the assembly frame.

[0012] In some embodiments, the quick-connect structure for prefabricated buildings also includes an adjustment mechanism. The adjustment mechanism includes a second spring. The second spring is movably disposed within two slots in a direction parallel to the assembled walls, and is positioned in a direction parallel to the assembled walls, abutting against the two assembled walls.

[0013] In some embodiments, the adjusting mechanism further includes a sliding plate, a fixed frame, a bidirectional screw, a turbine, and a worm gear. There are two sliding plates, each disposed within a slot, perpendicular to both sides of the slot. A second spring is fixed to the side of each sliding plate near the opening of the slot. The fixed frame is fixedly connected within the assembly frame. The bidirectional screw includes a central section and two screw segments. The central section is rotatably mounted on the fixed frame. The two screw segments are disposed on either side of the central section, with their threads in opposite directions. Each screw is perpendicular to one of the two sliding plates and threadedly connected to the other two sliding plates. The turbine is coaxially fixedly connected to the outside of the central section. The worm gear meshes with the turbine, with both ends of the worm extending out of the assembly frame.

[0014] In some embodiments, both sliding plates are fixed with a plurality of second springs, each second spring being arranged along the length of the slot.

[0015] In some embodiments, both sliding plates are strip-shaped structures, and the length direction of each sliding plate is the same as the arrangement direction of each second spring.

[0016] A quick-connection structure for prefabricated buildings, according to an embodiment of this utility model, includes prefabricated walls and a connecting mechanism. The connecting mechanism includes an assembly frame and limiting blocks. The assembly frame has two slots, and two adjacent prefabricated walls are respectively arranged in the two slots. The limiting blocks pass through both sides of the two slots and are inserted into the two prefabricated walls. The limiting blocks located on the same side of the two slots are connected as a whole. The quick-connection structure for prefabricated buildings of this utility model connects the limiting blocks located on the same side of the two slots into a whole, so that all limiting blocks on the same side of the two slots can be inserted in only one operation. This simplifies the connection steps of two adjacent prefabricated walls, speeds up the construction progress, and avoids the problems of cumbersome connection steps and delays in construction progress caused by multiple limiting block insertion operations. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the quick-connect structure for prefabricated buildings in this embodiment of the present invention;

[0019] Figure 2 This is a cross-sectional view of the quick-connect structure for prefabricated buildings in an embodiment of this utility model from a first angle.

[0020] Figure 3 This is a cross-sectional view of the quick-connect structure for prefabricated buildings in an embodiment of this utility model from a second angle.

[0021] Figure 4 This is a cross-sectional view of the quick-connect structure for prefabricated buildings in an embodiment of this utility model from a third angle.

[0022] In the diagram, 1 is the assembled wall; 2 is the connecting mechanism; 201 is the limiting plate; 202 is the connecting frame; 203 is the limiting block; 204 is the assembly frame; 205 is the first spring; 206 is the through hole; 207 is the limiting groove; 3 is the adjusting mechanism; 301 is the second spring; 302 is the knob; 303 is the sliding plate; 304 is the fixed frame; 305 is the worm gear; 306 is the worm wheel; and 307 is the double-acting screw. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0024] See Figure 1-4 The present invention provides a quick connection structure for prefabricated buildings, including an assembly wall 1, a connection mechanism 2, and an adjustment mechanism 3.

[0025] There are multiple assembled wall panels 1, which are spliced ​​together. Limiting grooves 207 are provided on both sides of the splicing end of two adjacent assembled wall panels 1. Multiple limiting grooves 207 are provided on both sides of the splicing end of two assembled wall panels 1, and each limiting groove 207 is arranged along the length direction of the splicing end of the two assembled wall panels 1.

[0026] The connecting mechanism 2 includes an assembly frame 204, a limiting block 203, a limiting plate 201, a connecting frame 202, and a first spring 205.

[0027] The assembly frame 204 has two slots on its opposite sides, and two adjacent assembly wall bodies 1 are respectively installed in the two slots.

[0028] The limiting block 203 passes through both sides of the two slots and is inserted into the limiting grooves 207 on both sides of the two assembled wall 1. The limiting blocks 203 located on the same side of the two slots are connected as a whole.

[0029] Four limiting plates 201 are provided, each disposed on the outer side of one of the two slots. Each of the four limiting plates 201 has a limiting block 203 fixed to its side facing the slot. Each of the four limiting plates 201 has multiple limiting blocks 203 fixed to it, and each limiting block 203 is arranged along the length of the slot. All four limiting plates 201 are strip-shaped, and the length direction of each limiting plate 201 is the same as the arrangement direction of the limiting blocks 203. The four limiting plates 201 are respectively attached to the outer walls of both sides of the two slots.

[0030] There are two connecting frames 202, which are respectively disposed on both sides of the assembly frame 204. Both connecting frames 202 are fixedly connected to two limiting plates 201 located on the same side of the two slots.

[0031] The first end of the first spring 205 is connected to the assembly frame 204, and the second end is connected to the connecting frame 202. The first end of the first spring 205 extends into the assembly frame 204 through a through hole 206 and is fixedly connected to the inner wall of the assembly frame 204, while the second end is fixedly connected to the outer wall of the connecting frame 202 that is in contact with the assembly frame 204.

[0032] By pulling the connecting frame 202 to move the limiting plate 201 and the limiting block 203, and then using the elastic retraction of the connecting frame 202 to make the limiting block 203 slide into the limiting groove 207, the assembly wall 1 and the assembly frame 204 can be quickly assembled. This operation method is simple and convenient, requiring no complicated tools or cumbersome installation steps, greatly saving construction time and improving the construction efficiency of prefabricated buildings, and is especially suitable for large-scale construction projects.

[0033] The adjustment mechanism 3 includes a second spring 301, a sliding plate 303, a fixed frame 304, a two-way screw 307, a turbine, and a worm gear 305.

[0034] The second spring 301 can be movably disposed in the two slots in a direction parallel to the mounting wall 1. The second spring 301 is disposed in a direction parallel to the mounting wall 1 and abuts against the two mounting walls 1.

[0035] There are two sliding plates 303, each disposed within a separate slot. Both sliding plates 303 are perpendicular to both sides of the slots. A second spring 301 is fixed to the side of each sliding plate 303 closest to the slot opening. Multiple second springs 301 are fixed to each sliding plate 303, arranged along the length of the slot. Both sliding plates 303 are strip-shaped, with their length direction aligned with the arrangement direction of the second springs 301.

[0036] The fixed frame 304 is fixedly connected within the assembly frame 204.

[0037] The bidirectional screw 307 includes a central section and two screw sections. The central section is rotatably mounted on the fixed frame 304. The two screw sections are respectively located on both sides of the central section. The threads of the two screw sections are arranged in opposite directions. The two screws are perpendicular to the two sliding plates 303 respectively. The two screw sections are threadedly connected to the two sliding plates 303 respectively.

[0038] The turbine is coaxially and fixedly connected to the outside of the central section.

[0039] The worm gear 305 is meshed with the turbine, and both ends of the worm gear 305 extend out of the mounting frame 204. A knob 302 is fixedly connected to both ends of the worm gear 305.

[0040] Rotating the knob 302 drives the bidirectional screw 307 to move the sliding plate 303, causing the second spring 301 to apply pressure to the side of the assembled wall 1, thus limiting its movement from the side. This adjustment mechanism 3 effectively enhances the stability of the assembled wall 1 within the assembled frame 204, ensuring the robustness of the connection structure. Even under external forces or environmental influences, it ensures a tight and reliable connection between the components of the prefabricated building, improving the overall safety and durability of the building.

[0041] Working Principle: First, preparatory actions are performed before inserting the assembly wall 1. The operator holds the connecting frames 202 on both sides of the assembly frame 204 and applies a pulling force outwards. Since one end of the connecting frame 202 is fixedly connected to the limiting plate 201, under the pulling force, the connecting frame 202 will drive the limiting plate 201 and the limiting block 203 fixedly connected to the limiting plate 201 to slide outwards from the assembly frame 204. At this time, the first spring 205 will pass through the through hole 206 opened at the corresponding position on the outer surface of the assembly frame 204. The first spring 205 fixedly connected to the outer surface of the connecting frame 202 will undergo elastic deformation during the stretching process, storing elastic potential energy. When the limiting plate 201 and the limiting block 203 are pulled to the appropriate position, allowing the assembly wall 1 to smoothly enter the assembly frame 204, the operator carefully aligns the assembly wall 1 with the assembly frame 204 and smoothly inserts the assembly wall 1 into the assembly frame 204 along the sliding mating surface between the assembly frame 204 and the assembly wall 1. During insertion, care must be taken to maintain the horizontal and vertical position of the assembly wall 1 to ensure accurate positioning. Once the assembly wall 1 is fully inserted into the assembly frame 204, the operator releases their grip on the connecting frame 202. At this point, the previously stretched first spring 205 releases its elastic potential energy, generating a contraction force. Under this contraction force, the connecting frame 202 begins to move back, thereby causing the limiting plate 201 and the limiting block 203 to slide into the assembly frame 204. The outer surface of the assembly wall 1 has a pre-cut limiting groove 207 that matches the limiting block 203. When the limiting block 203 moves to the position corresponding to the limiting groove 207 as the connecting frame 202 retracts, the limiting block 203, guided by the spring contraction force and the assembly frame 204, precisely slides into the limiting groove 207. The cooperation between the limiting block 203 and the limiting groove 207 enables the initial positioning and connection of the assembled wall 1 and the assembled frame 204, completing the key step of rapid assembly and effectively fixing the assembled wall 1 in the horizontal direction.

[0042] After initial assembly, to further enhance the stability of the connection between the assembly wall 1 and the connecting mechanism 2, it is necessary to limit the side of the assembly wall 1. The operator rotates the knob 302 located on the outer surface of the assembly frame 204. The rotation of the knob 302 directly drives the worm gear 305 fixedly connected to it to rotate synchronously. Because the worm gear 305 meshes with the worm wheel 306 fixed on the double-acting screw 307, the rotation of the worm gear 305 drives the worm wheel 306 to rotate, which in turn drives the double-acting screw 307 to rotate on the inner wall of the fixed frame 304. Since the outer surface of the double-acting screw 307 is connected to the two sets of sliding plates 303 by threads, and the threads of the double-acting screw 307 are designed for bidirectional rotation, when the double-acting screw 307 rotates, it will drive the two sets of sliding plates 303 to move in opposite directions along the outer surface of the fixed frame 304. As the sliding plates 303 move, the multiple sets of second springs 301 fixed on the outer surface of the sliding plates 303 will gradually approach the side of the assembly wall 1. When the second spring 301 contacts the side of the assembled wall 1, it is compressed and undergoes elastic deformation as the sliding plate 303 continues to move. According to Hooke's Law, the compressed second spring 301 exerts a reverse pressure on the side of the assembled wall 1, causing the side of the assembled wall 1 to fit tightly against the adjusting mechanism 3. In this way, the assembled wall 1 is also firmly limited in the lateral direction, making the entire connection structure more stable and reliable, and better able to withstand various external forces that may occur during construction and use.

[0043] The quick-connection structure for prefabricated buildings of this utility model has the following beneficial effects:

[0044] 1. By pulling the connecting frame 202, the limiting plate 201 and the limiting block 203 move. Then, the elastic retraction of the connecting frame 202 causes the limiting block 203 to slide into the limiting groove 207, enabling rapid assembly of the prefabricated wall 1 and the prefabricated frame 204. This operation method is simple and convenient, requiring no complicated tools or cumbersome installation steps, greatly saving construction time and improving the construction efficiency of prefabricated buildings.

[0045] 2. By rotating the knob 302, the bidirectional screw 307 is driven to move the sliding plate 303, causing the second spring 301 to apply pressure to the side of the assembled wall 1, thus limiting its movement from the side. This adjustment mechanism 3 effectively enhances the stability of the assembled wall 1 within the assembled frame 204, ensuring the robustness of the connection structure. Even under external forces or environmental influences, it ensures a tight and reliable connection between the components of the prefabricated building, improving the overall safety and durability of the building.

[0046] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quick-connect structure for prefabricated buildings, characterized in that, include: Prefabricated wall structure; The connecting mechanism includes an assembly frame and a limiting block; the assembly frame has two slots, and two adjacent assembly walls are respectively arranged in the two slots; the limiting block passes through both sides of the two slots and is inserted into the two assembly walls, and the limiting blocks located on the same side of the two slots are connected as a whole.

2. The quick-connect structure for prefabricated buildings as described in claim 1, characterized in that, The connecting mechanism also includes; The limiting plate has four plates, which are respectively disposed on the outer sides of the two slots, and the limiting block is fixed on the side of each of the four limiting plates facing the slot. The connecting frame has two components, which are respectively disposed on both sides of the assembly frame. Both connecting frames are fixedly connected to two limiting plates located on the same side outside the two slots. The first spring has its first end connected to the assembly frame and its second end connected to the connecting frame.

3. The quick-connect structure for prefabricated buildings as described in claim 2, characterized in that, Each of the four limiting plates is fixed with a plurality of limiting blocks, and each limiting block is arranged along the length direction of the slot.

4. The quick-connect structure for prefabricated buildings as described in claim 3, characterized in that, All four limiting plates are strip-shaped structures, and the length direction of each limiting plate is the same as the arrangement direction of each limiting block.

5. The quick-connect structure for prefabricated buildings as described in claim 2, characterized in that, The four limiting plates are respectively attached to the outer walls of the two card slots on both sides.

6. The quick-connect structure for prefabricated buildings as described in claim 2, characterized in that, The first end of the first spring extends into the assembly frame and is fixedly connected to the inner wall of the assembly frame, and the second end is fixedly connected to the outer wall of the connecting frame that is attached to the assembly frame.

7. The quick-connect structure for prefabricated buildings as described in claim 2, characterized in that, Also includes: The adjusting mechanism includes a second spring; the second spring is movably disposed in the two slots in a direction parallel to the mounting wall, and the second spring is disposed in a direction parallel to the mounting wall and abuts against the two mounting walls.

8. The quick-connect structure for prefabricated buildings as described in claim 7, characterized in that, The adjustment mechanism also includes: The sliding plate has two slide plates, which are respectively disposed in the two slots. Both slide plates are perpendicular to the two sides of the slots. The second spring is fixed on the side of each slide plate near the opening of the slot. A fixed frame is fixedly connected within the assembly frame; A bidirectional screw includes a central section and two screw sections. The central section is rotatably mounted on the fixed frame. The two screw sections are respectively disposed on both sides of the central section. The threads of the two screw sections are arranged in opposite directions. The two screws are perpendicular to the two sliding plates respectively. The two screw sections are threadedly connected to the two sliding plates respectively. The turbine is coaxially and fixedly connected to the outside of the central section; A worm gear meshes with the turbine, with both ends of the worm gear extending out of the mounting frame.

9. The quick-connect structure for prefabricated buildings as described in claim 8, characterized in that, Both sliding plates are fixed with a plurality of second springs, and each second spring is arranged along the length direction of the slot.

10. The quick-connect structure for prefabricated buildings as described in claim 8, characterized in that, Both sliding plates are strip-shaped structures, and the length direction of each sliding plate is the same as the arrangement direction of each second spring.