Rapid assembling and connecting device for modular building units

Abstract

The utility model relates to a rapid assembling and connecting device for modular building units, and belongs to the technical field of fabricated building structures, the rapid assembling and connecting device comprises an inner facing layer, a cast-in-place concrete structure layer, a heat preservation layer, a protection layer and an outer facing layer, a steel bar frame is arranged in cast-in-place concrete, and anchoring rods are pre-buried in the cast-in-place concrete structure layer; first connecting blocks are fixedly arranged at the ends, close to the heat preservation layer, of the anchoring rods, first inserting grooves are formed in the sides, facing the heat preservation layer, of the first connecting blocks, connecting pipes are arranged on the heat preservation layer and fixedly connected with the heat preservation layer, second connecting blocks are fixedly arranged at the ends, away from the cast-in-place concrete structure layer, of the connecting pipes, and second inserting grooves are formed in the second connecting blocks in a penetrating mode. And a fixing rod is fixedly arranged at the second connecting block, a first clamping assembly capable of being fixedly connected with the fixing rod in a clamped mode is arranged at the first connecting block, and the effect of improving the assembly stability of the thermal insulation wall is achieved.

Description

Technical Field

[0001] This application relates to the technical field of prefabricated building structures, and in particular to a rapid assembly and connection device for modular building units. Background Technology

[0002] The modular building unit rapid assembly and connection device is designed to efficiently assemble building modules. Its specific structure enables the rapid and precise assembly of prefabricated units such as insulated walls, floor slabs, beams, and columns, with tight interlocking of module interfaces, allowing for rapid structural formation and significantly shortening the construction cycle. It also features ease of operation, reducing on-site labor and time costs, and facilitating rapid building delivery and flexible construction.

[0003] The existing thermal insulation wall unit adopts a multi-layer composite structure, consisting of an interior surface layer, a cast-in-place concrete structural layer, an insulation layer, a protective layer, and an exterior finish layer, from the inside out. Each layer achieves stable assembly through differentiated connection methods: the interior surface layer is bonded to the cast-in-place concrete structural layer to form an inner composite substrate; the insulation layer is mechanically anchored to the outer surface of the cast-in-place concrete structural layer using specialized bolts; the protective layer is made of cast concrete and is bonded to the insulation layer, forming a closed protective interface; finally, the exterior finish layer is bonded to the surface of the protective layer, completing the integrated assembly of the thermal insulation wall.

[0004] Regarding the aforementioned technologies, current insulated walls are prone to abnormal vibration or shear stress in the bolts when subjected to external impact. This mechanical action can cause the bolts to loosen gradually, thereby weakening the connection reliability between the insulation layer and the cast-in-place concrete structural layer, resulting in a defect of low assembly stability of the insulated wall. Utility Model Content

[0005] To improve the stability of insulated wall assembly, this application provides a rapid assembly and connection device for modular building units.

[0006] The rapid assembly and connection device for modular building units provided in this application adopts the following technical solution:

[0007] A rapid assembly and connection device for modular building units includes an interior surface layer, a cast-in-place concrete structural layer, an insulation layer, a protective layer, and an exterior surface layer. The cast-in-place concrete contains a steel reinforcement frame. An anchor rod is pre-embedded in the cast-in-place concrete structural layer, with both ends of the anchor rod penetrating opposite sides of the cast-in-place concrete structural layer. A first connecting block is fixed to the end of the anchor rod near the insulation layer. A first slot is formed on the side of the first connecting block facing the insulation layer. A connecting pipe is provided on the insulation layer, with both ends penetrating opposite side walls of the insulation layer. The connecting pipe and the insulation layer are fixedly connected. A second connecting block is fixed to the end of the connecting pipe away from the cast-in-place concrete structural layer. A second slot is formed in the second connecting block. A fixing rod is fixed to the second connecting block. The fixing rod and the second slot are plugged into and adapted to each other. The fixing rod and the connecting pipe are plugged into and adapted to each other. The fixing rod and the first slot are plugged into and adapted to each other. A first snap-fit ​​component is provided at the first connecting block that can be snapped into and fixed with the fixing rod.

[0008] By adopting the above technical solution, during the assembly of the insulated wall, the steel reinforcement frame of the cast-in-place concrete structural layer is first erected. After the steel reinforcement frame is erected, the prefabricated anchor rods are arranged in the design position and tied to the steel reinforcement frame. Then, the insulation layer is installed, and the connecting pipe on the insulation layer is precisely aligned to match the first slot of the first connecting block. Next, the fixed rod is moved through the second slot in sequence and slides into the first slot along the connecting pipe. When the fixed rod reaches the preset position, the first locking component automatically locks. Finally, concrete is poured to complete the construction of the cast-in-place concrete structural layer and the protective layer. One end of the fixed rod is inside the protective layer, and the fixed rod and the protective layer are fixedly connected. Finally, the interior surface layer and the exterior surface layer are installed through an adhesive bonding process, realizing the overall assembly of the insulated wall. Through the integrated anchoring and interlocking design, the defects of traditional bolt connections that are prone to loosening are eliminated, thereby improving the stability of the insulated wall assembly.

[0009] Optionally, a first protective cover is fitted onto the first connecting block. The first protective cover is funnel-shaped, and the first protective cover and the first connecting block are fixedly connected.

[0010] By adopting the above technical solution, after the fixing rod and the first connecting block are snapped together, one end of the first protective cover abuts against the insulation layer. During the process of pouring the concrete structure layer, the concrete is not easy to penetrate into the interior of the insulation layer from the gap between the connecting pipe and the insulation layer, so the insulation layer is not easily damaged.

[0011] Optionally, a first slot is provided on one side wall of the fixing rod, and a first moving slot is provided on the side wall of the first slot of the first connecting block. The snap-fit ​​assembly includes a first snap-fit ​​block and a first spring. The first snap-fit ​​block is disposed in the moving slot. The first snap-fit ​​block and the first connecting block are slidably connected. The first snap-fit ​​block and the first slot are snap-fitted and adapted. The first spring is fixed between the first snap-fit ​​block and the bottom wall of the first moving slot. The side of the first snap-fit ​​block away from the first spring is set as an inclined surface.

[0012] By adopting the above technical solution, during the movement of the fixed rod end in the first slot, the fixed rod end first contacts the inclined surface of the first locking block and pushes the first locking block towards the first moving groove. The first spring is compressed. After the protective layer and the insulation layer come into contact, the first locking block and the first locking groove are aligned. The first spring releases its elastic force and pushes the first locking block to move. One end of the first locking block is locked into the first locking groove, thus realizing the locking and fixing of the fixed rod and the first connecting block.

[0013] Optionally, the protective layer may contain a wire mesh.

[0014] By adopting the above technical solution, the steel wire mesh serves as a reinforcing skeleton, providing structural support for the protective layer, while improving the overall bending and tensile strength, effectively controlling seismic displacement, and enhancing structural durability.

[0015] Optionally, a fixing plate is welded onto the wire mesh, and one end of the fixing rod is fixedly connected to the fixing plate.

[0016] By adopting the above technical solution, the fixing rod and the fixing plate are connected, ensuring the stability of force transmission, and at the same time realizing the connection between the fixing rod and the protective layer.

[0017] Optionally, a second protective cover is fitted onto the second connecting block, and the second protective cover and the second connecting block are fixedly connected. The second protective cover is funnel-shaped, and one end of the second protective cover abuts against the insulation layer.

[0018] By adopting the above technical solution, during the concrete pouring process, the second protective cover blocks the concrete, making it difficult for the concrete to penetrate into the interior of the insulation layer from the gap between the connecting pipe and the insulation layer, thus preventing damage to the insulation layer.

[0019] Optionally, a second slot is provided on the side wall of the fixed rod away from the first slot, and a second moving slot is provided on the side wall of the second slot of the second connecting block. A second engaging component is provided at the second moving slot, which can engage and fix with the fixed rod.

[0020] By adopting the above technical solution, after the first snap-fit ​​assembly completes the fixing of the first connecting block and the fixing rod, the second snap-fit ​​assembly completes the snap-fit ​​of the second connecting block and the fixing rod, thereby making it difficult for the fixing rod to move relative to the insulation layer, and further improving the stability of the connection between the fixing rod and the first connecting block.

[0021] Optionally, the second snap-fit ​​assembly includes a second snap-fit ​​block and a second spring. The second snap-fit ​​block is disposed in the second moving groove, the second snap-fit ​​block and the second connecting block are slidably connected, the second spring is fixed between the bottom wall of the second snap-fit ​​block and the second moving groove, the side of the second snap-fit ​​block away from the second spring is set as an inclined surface, and the second snap-fit ​​block and the second snap-fit ​​groove are snap-fitted and adapted.

[0022] By adopting the above technical solution, during the process of the fixed rod moving towards the second slot, the end of the fixed rod first contacts the inclined surface of the second locking block and pushes the second locking block towards the second moving groove. The second spring is compressed. After the fixed rod moves to the set position, the second locking block and the second locking groove are aligned. The second spring releases its elastic force and pushes the second locking block to move. One end of the second locking block is engaged in the second locking groove, thereby realizing the engagement and fixation of the second connecting block and the fixed rod.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. The first snap-fit ​​assembly is used to snap-fit ​​and fix the fixing rod and the first connecting block. The fixing rod and the protective layer are fixedly connected, realizing the connection between the protective layer and the cast-in-place concrete structure layer. The insulation layer is located between the protective layer and the cast-in-place concrete structure layer, thus realizing the connection between the insulation layer and the cast-in-place concrete structure layer. The integrated anchoring and interlocking snap-fit ​​design eliminates the defects of easy loosening of traditional bolt connections, thereby improving the stability of the insulation wall assembly.

[0025] 2. The first protective cover prevents concrete from easily seeping into the insulation layer through the gap between the connecting pipe and the insulation layer during the pouring of the cast-in-place concrete structure layer, thus making the insulation layer less susceptible to damage.

[0026] 3. The second protective cover prevents concrete from easily seeping into the insulation layer through the gap between the connecting pipe and the insulation layer during the pouring of the protective layer, thus making the insulation layer less susceptible to damage. Attached Figure Description

[0027] Figure 1 This is a structural schematic diagram of a modular building unit rapid assembly and connection device according to an embodiment of this application;

[0028] Figure 2 This is a cross-sectional view of the structure of the first snap-fit ​​component in the embodiments of this application;

[0029] Figure 3 yes Figure 2 A magnified view of part A in the middle.

[0030] In the diagram, 1. Interior finish layer; 11. Cast-in-place concrete structural layer; 111. Rebar frame; 12. Insulation layer; 13. Protective layer; 14. Exterior finish layer; 15. Anchor rod; 2. First connecting block; 21. First slot; 22. First protective cover; 23. First moving groove; 3. Connecting pipe; 4. Second connecting block; 41. Second slot; 42. Second protective cover; 43. Second moving groove; 5. Fixing rod; 51. First slot; 52. Second slot; 6. First snap-fit ​​assembly; 61. First snap block; 62. First spring; 7. Wire mesh; 71. Fixing plate; 8. Second snap-fit ​​assembly; 81. Second snap block; 82. Second spring. Detailed Implementation

[0031] The following is in conjunction with the appendix Figures 1-3 This application will be described in further detail.

[0032] This application discloses a rapid assembly and connection device for modular building units.

[0033] refer to Figure 1 A rapid assembly and connection device for modular building units includes an interior surface layer 1, a cast-in-place concrete structural layer 11, an insulation layer 12, a protective layer 13, and an exterior finish layer 14. The interior surface layer 1 is bonded to the side of the cast-in-place concrete structural layer 11 facing the interior. The insulation layer 12 is disposed on the side of the cast-in-place concrete structural layer 11 away from the interior surface layer 1. The protective layer 13 is disposed on the side of the insulation layer 12 away from the cast-in-place concrete structural layer 11. The exterior finish layer 14 is bonded to the side of the protective layer 13 away from the insulation layer 12. Both the cast-in-place concrete structural layer 11 and the protective layer 13 are made of cast concrete.

[0034] refer to Figure 1 , Figure 2 and Figure 3The cast-in-place concrete structural layer 11 contains a steel reinforcement frame 111, to which multiple anchor rods 15 are bound. These anchor rods 15 are arranged in an array, with their length direction perpendicular to the cast-in-place concrete structural layer 11. A first connecting block 2 is fixed to the side of the anchor rod 15 closest to the insulation board. A first slot 21 is formed on the side of the first connecting block 2 facing the insulation layer 12. Multiple connecting pipes 3 are installed on the insulation layer 12, with their length direction perpendicular to the insulation layer 12. The connecting pipes 3 penetrate the insulation layer 12 and are fixedly connected to it. These multiple connecting pipes 3 are arranged in an array, with each connecting pipe corresponding to a first connecting block 2. A fixing point is fixed to the end of each connecting pipe 3 furthest from the first connecting block 2. The second connecting block 4 has a second slot 41 through it. The insulation layer 12 is provided with a wire mesh 7, which is parallel to the insulation layer 12. Multiple fixing plates 71 are welded on the wire mesh 7, which is parallel to the wire mesh 7. A fixing rod 5 is welded to the side of the fixing plate 71 facing the insulation layer 12. The length direction of the fixing rod 5 is perpendicular to the wire mesh 7. The fixing rod 5 is inserted and matched with the second slot 41, the connecting pipe 3, and the first slot 21. The fixing rod 5 and the connecting pipe 3 correspond one-to-one. The first connecting block 2 is provided with a first snap-fit ​​component 6 that can snap and fix the fixing rod 5. The second connecting block 4 is provided with a second snap-fit ​​component 8 that can snap and fix the fixing rod 5.

[0035] During the assembly of the insulated wall, firstly, a steel reinforcement frame 111 is erected. After the steel reinforcement frame 111 is completed, anchor rods 15 are tied at the designated positions on the steel reinforcement frame 111. After tying, the wire mesh 7 is moved, which in turn moves the fixing rod 5. The end of the fixing rod 5 passes through the corresponding second slot 41 and enters the first slot 21 along the connecting pipe 3. After the fixing rod 5 moves to the designated position, the first snap-fit ​​assembly 6 completes the snap-fit ​​fixing of the fixing rod 5 and the first connecting block 2, and the second snap-fit ​​assembly 8 completes the snap-fit ​​fixing of the second connecting block 4 and the fixing rod 5. Then, the protective layer 13 and... Concrete is poured into the cast-in-place concrete structural layer 11 at the same time. One end of the fixing rod 5 and the wire mesh 7 are embedded in the protective layer 13. The steel frame 111 and the anchor rod 15 are embedded in the cast-in-place concrete structural layer 11. Then, the connection between the insulation layer 12, the protective layer 13 and the cast-in-place concrete structural layer 11 is realized by the setting of the fixing rod 5, the first snap-fit ​​component 6 and the second snap-fit ​​component 8. Then, the interior surface layer 1 is bonded to the side of the cast-in-place concrete structural layer 11 away from the insulation layer 12, and the exterior surface layer 14 is bonded to the side of the protective layer 13 away from the insulation layer 12, thus realizing the assembly of the insulation wall.

[0036] refer to Figure 1 , Figure 2 and Figure 3The first connecting block 2 has a first moving groove 23 on each of the opposite side walls of the first slot 21. The first snap-fit ​​component 6 is provided in two sets, and the two sets of first snap-fit ​​components 6 and the two first moving grooves 23 correspond one-to-one. The first snap-fit ​​component 6 includes a first snap block 61 and a first snap groove 51. The first snap block 61 is disposed in the first moving groove 23. The first snap block 61 and the first connecting block 2 are slidably connected. The first spring 62 is fixed between the first snap block 61 and the bottom wall of the first moving groove 23. The side of the first snap block 61 away from the first spring 62 is set as an inclined surface. The end of the fixing rod 5 away from the fixing plate 71 has a first snap groove 51 on each of the opposite sides. The first snap block 61 and the first snap groove 51 are snap-fitted and correspond one-to-one.

[0037] The second connecting block 4 has a second moving groove 43 on each of its opposite sides. The second snap-fit ​​component 8 is provided in two sets. The second snap-fit ​​component 8 and the second moving groove 43 correspond one-to-one. The second snap-fit ​​component 8 includes a second snap block 81 and a second spring 82. The second snap block 81 is disposed in the second moving groove 43. The second snap block 81 and the second connecting block 4 are slidably connected. The second spring 82 is fixed between the bottom wall of the second snap block 81 and the second moving groove 43. The side of the second snap block 81 away from the second spring 82 is set as an inclined surface. The fixed rod 5 has a second snap groove 52 on each of its opposite sides near the fixed plate 71. The second snap block 81 and the second snap groove 52 are snap-fitted and correspond one-to-one.

[0038] During the movement of the fixing rod 5 toward the second slot 41, the end of the fixing rod 5 first contacts the inclined surface of the second locking block 81 and pushes the second locking block 81 toward the second moving groove 43. The second spring 82 is compressed. After the end of the fixing rod 5 enters the first slot 21, the end of the fixing rod 5 first contacts the inclined surface of the first locking block 61 and pushes the first locking block 61 toward the first moving groove 23. The first spring 62 is compressed. After the fixing rod 5 moves to the set position, the first locking block 61 and the first locking groove 51 are aligned. The first spring 62 releases its elastic force and pushes the first locking block 61 toward the first locking groove 51. One end of the first locking block 61 is engaged in the first locking groove 51, realizing the engagement and fixation of the first connecting block 2 and the fixing rod 5. At the same time, the second locking block 81 and the second locking groove 52 are aligned. The second spring 82 releases its elastic force and pushes the second locking block 81 to move. One end of the second locking block 81 is engaged in the second locking groove 52, realizing the engagement and fixation of the second connecting block 4 and the fixing rod 5.

[0039] refer to Figure 1 , Figure 2 and Figure 3A first protective cover 22 is fitted on the first connecting block 2, and the first protective cover 22 and the first connecting block 2 are fixedly connected. A second protective cover 42 is fitted on the second connecting block 4, and the second protective cover 42 and the second connecting block 4 are fixedly connected. Both the first protective cover 22 and the second protective cover 42 are funnel-shaped. The end of the second protective cover 42 away from the second connecting block 4 abuts against the insulation layer 12.

[0040] After the fixing rod 5 and the first connecting block 2 are snapped together, the end of the first protective cover 22 away from the first connecting block 2 abuts against the insulation layer 12. The setting of the first protective cover 22 and the second protective cover 42 makes it difficult for concrete to penetrate into the insulation layer 12 from the gap between the connecting pipe 3 and the insulation layer 12 during the pouring of the protective layer 13 and the cast-in-place concrete structural layer 11, thereby making the insulation layer 12 less prone to damage.

[0041] The implementation principle of a rapid assembly and connection device for modular building units in this application embodiment is as follows: A steel reinforcement frame 111 is erected, and anchor rods 15 are bound and fixed to the steel reinforcement frame 111. Then, an insulation layer 12 is placed. After placement, the wire mesh 7 is moved so that one end of the fixing rod 5 passes through the second connecting block 4 and the connecting pipe 3, and extends into the first slot 21. The first snap-fit ​​assembly 6 fixes the fixing rod 5 and the first connecting block 2, thereby fixing the fixing rod 5 and the anchor rod 15. Simultaneously, the second snap-fit ​​assembly 8 achieves... The fixing of the fixed rod 5 and the second connecting block 4, thereby fixing the fixed rod 5 and the insulation layer 12, is then followed by the pouring of concrete for the protective layer 13 and the cast-in-place concrete structural layer 11. After pouring, one end of the fixed rod 5 is embedded in the protective layer 13, achieving a fixed connection between the fixed rod 5 and the protective layer 13. The anchor rod 15 is embedded in the cast-in-place concrete structural layer 11, achieving a fixed connection between the anchor rod 15 and the cast-in-place concrete structural layer 11, thus achieving the connection between the protective layer 13, the insulation layer 12, and the cast-in-place concrete structural layer 11. The rigid binding of the anchor rod 15 with the steel reinforcement skeleton forms an integrated force-bearing system. The precision docking mechanism guided by the first slot 21 and the second slot 41 ensures installation accuracy. The first snap-fit ​​component 6 and the second snap-fit ​​component 8 achieve durable fastening under vibration environment, while solving the loosening problem of traditional bolt connections, thereby improving the assembly stability of the insulation wall.

[0042] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A rapid assembly and connection device for modular building units, comprising an interior surface layer (1), a cast-in-place concrete structural layer (11), an insulation layer (12), a protective layer (13), and an exterior surface layer (14), wherein a steel reinforcement frame (111) is provided within the cast-in-place concrete, characterized in that: Anchor rods (15) are pre-embedded in the cast-in-place concrete structural layer (11). The two ends of the anchor rods (15) penetrate the opposite sides of the cast-in-place concrete structural layer (11). A first connecting block (2) is fixed at one end of the anchor rod (15) near the insulation layer (12). A first slot (21) is opened on the side of the first connecting block (2) facing the insulation layer (12). A connecting pipe (3) is provided on the insulation layer (12). The two ends of the connecting pipe (3) penetrate the opposite side walls of the insulation layer (12). The connecting pipe (3) and the insulation layer... (12) Fixed connection, a second connecting block (4) is fixed at one end of the connecting pipe (3) away from the cast-in-place concrete structure layer. The second connecting block (4) has a second slot (41) through it. A fixing rod (5) is fixed at the second connecting block (4). The fixing rod (5) and the second slot (41) are plugged into each other. The fixing rod (5) and the connecting pipe (3) are plugged into each other. The fixing rod (5) and the first slot (21) are plugged into each other. A first snap-fit ​​component (6) is provided at the first connecting block (2) that can be snapped into and fixed with the fixing rod (5).

2. The rapid assembly and connection device for modular building units according to claim 1, characterized in that: A first protective cover (22) is fitted on the first connecting block (2). The first protective cover (22) is funnel-shaped and the first protective cover (22) and the first connecting block (2) are fixedly connected.

3. The rapid assembly and connection device for modular building units according to claim 1, characterized in that: The fixed rod (5) has a first slot (51) on one side wall, and the first connecting block (2) has a first moving slot (23) on the side wall of the first slot (21). The snap-fit ​​assembly includes a first snap block (61) and a first spring (62). The first snap block (61) is set in the moving slot. The first snap block (61) and the first connecting block (2) are slidably connected. The first snap block (61) and the first slot (51) are snap-fitted together. The first spring (62) is fixed between the first snap block (61) and the bottom wall of the first moving slot (23). The side of the first snap block (61) away from the first spring (62) is set as an inclined surface.

4. The rapid assembly and connection device for modular building units according to claim 1, characterized in that: The protective layer (13) is provided with a wire mesh (7).

5. The rapid assembly and connection device for modular building units according to claim 4, characterized in that: A fixing plate (71) is welded onto the wire mesh (7), and one end of the fixing rod (5) is fixedly connected to the fixing plate (71).

6. The rapid assembly and connection device for modular building units according to claim 1, characterized in that: The second connecting block (4) is fitted with a second protective cover (42), which is fixedly connected to the second connecting block (4). The second protective cover (42) is funnel-shaped, and one end of the second protective cover (42) abuts against the insulation layer (12).

7. The rapid assembly and connection device for modular building units according to claim 1, characterized in that: The fixing rod (5) has a second slot (52) on one side wall away from the first slot (51), and the second connecting block (4) has a second moving slot (43) on the side wall of the second slot (41). A second snap-fit ​​component (8) is provided at the second moving slot, which can snap-fit ​​and fix the fixing rod (5).

8. The rapid assembly and connection device for modular building units according to claim 7, characterized in that: The second snap-fit ​​assembly (8) includes a second snap-fit ​​block (81) and a second spring (82). The second snap-fit ​​block (81) is disposed in the second moving groove (43). The second snap-fit ​​block (81) and the second connecting block (4) are slidably connected. The second spring (82) is fixed between the bottom wall of the second snap-fit ​​block (81) and the second moving groove (43). The side of the second snap-fit ​​block (81) away from the second spring (82) is set as an inclined surface. The second snap-fit ​​block (81) and the second snap-fit ​​groove (52) are snap-fit ​​adapted to each other.

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