Fabricated building laminated slab

Abstract

The utility model discloses an assembly type building laminated slab which comprises a first laminated slab, the first laminated slab comprises a rectangular portion, a plurality of first protruding blocks are arranged on the two sides of the rectangular portion at intervals respectively, and first butt joint holes are formed in the first protruding blocks. The second laminated plate comprises a rectangular part, a plurality of second convex blocks are arranged on the two sides of the rectangular part at intervals respectively, a groove is formed between every two second convex blocks, second butt joint holes are formed in the second convex blocks, the first convex blocks are inserted into the grooves, and the second convex blocks abut against the rectangular part of the first laminated plate; the outer side of the limiting main rod is connected with a sleeve in a sleeved mode, and the limiting main rod connected with the sleeve 13 in a sleeved mode penetrates through the multiple second butt joint holes and the multiple first butt joint holes to fixedly connect the first laminated plate with the second laminated plate. The first protruding blocks, the grooves and the second protruding blocks are spliced, so that the two laminated slabs are quickly aligned and spliced, the surfaces are smooth and seamless, the leakproofness is ensured, manual adjustment steps are reduced, and time and manpower are remarkably saved.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a prefabricated building composite panel. Background Technology

[0002] Prefabricated composite slabs are prefabricated monolithic floor slabs composed of precast slabs and cast-in-place reinforced concrete layers. These slabs combine the high efficiency of precast concrete with the flexibility of on-site casting, increasing construction speed, reducing on-site work, and contributing to improved overall building quality. The main components of the composite slab include precast slabs and cast-in-place reinforced concrete layers. The precast slabs are both part of the floor slab structure and serve as permanent formwork for the cast-in-place reinforced concrete composite layer. Horizontal equipment pipelines can be laid within the cast-in-place composite layer, increasing ease of use.

[0003] Existing prefabricated building composite slabs have the following problems:

[0004] 1. The assembly process is labor-intensive and inefficient. Traditional connection methods rely on manual adjustments and alignments, which are time-consuming and labor-intensive. Misalignment is prone to occur, especially in complex construction environments, requiring repeated corrections.

[0005] 2. Insufficient stability: The mating holes lack multi-directional limiting design, and gaps are easily generated after splicing due to external forces or vibrations, resulting in a loose structure and affecting the overall airtightness and load-bearing capacity.

[0006] 3. Complex maintenance: Most of the connecting parts are fixed in design, and special tools are required for disassembly or replacement, which increases the cost and difficulty of later maintenance. Utility Model Content

[0007] The purpose of this utility model is to provide a prefabricated building composite panel to solve the above-mentioned problems in the prior art.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a prefabricated building composite slab, comprising: a first composite slab, which includes a rectangular portion, with a plurality of first protrusions spaced apart on both sides of the rectangular portion, each of the first protrusions having a first mating hole; a second composite slab, which includes a rectangular portion, with a plurality of second protrusions spaced apart on both sides of the rectangular portion, a groove forming between two second protrusions, each of the second protrusions having a second mating hole, the first protrusions being inserted into the grooves, and the second protrusions abutting against the rectangular portion of the first composite slab; a limiting main rod, with a sleeve sleeved on its outer side, the limiting main rod with the sleeve sleeved passing through the plurality of second mating holes and the plurality of first mating holes, thereby fixing the first composite slab and the second composite slab together.

[0009] In a preferred embodiment, the first protrusion and the second protrusion have the same specifications, and the first protrusion and the groove are correspondingly fitted. The upper end of the second protrusion located at the top of the second composite plate is flush with the upper end of the rectangular portion of the second composite plate, and the lower end of the second protrusion located at the bottom of the second composite plate is flush with the lower end of the rectangular portion of the second composite plate. The upper end of the first protrusion located at the top of the first composite plate is lower than the upper end of the rectangular portion of the first composite plate by a distance of one groove, and the lower end of the first protrusion located at the bottom of the first composite plate is higher than the lower end of the rectangular portion of the first composite plate by a distance of one groove. The upper end of the first composite plate is flush with the upper end of the second composite plate, and the lower end of the second composite plate is flush with the lower end of the first composite plate.

[0010] In a preferred embodiment, four limiting grooves are provided in both the second docking hole and the first docking hole, and the four limiting grooves are distributed in four directions, with the second docking hole and the first docking hole being arranged vertically in correspondence.

[0011] In a preferred embodiment, a plurality of limit blocks are spaced apart on the limit main rod, each set of limit blocks including four blocks, and a spring-loaded structure is provided between the limit blocks and the limit main rod. The limit main rod is fixedly connected to the spring-loaded structure, and the spring-loaded structure is fixedly connected to the limit blocks.

[0012] In a preferred embodiment, the sleeve has multiple sets of slots, each set having four slots. The four slots are respectively configured with four limiting blocks. The limiting blocks extend out of the outside of the slots and are engaged with the limiting slots. The limiting blocks are arc-shaped.

[0013] In a preferred embodiment, a rotating end is fixedly connected to the top of the limiting main rod. The rotating end includes a cylindrical part and a crossbar part disposed above the cylindrical part. The crossbar part is disposed in the middle of the cylindrical part. Both sides of the crossbar part are provided with wing bolts. Threaded holes are provided on both sides of the top of the sleeve. The lower end of the wing bolt passes through the rotating end and is threadedly connected to the threaded hole, thereby realizing the connection between the limiting main rod and the sleeve.

[0014] Compared with the prior art, this utility model has the following features and beneficial effects:

[0015] 1. This utility model uses a first protrusion, a groove, and a second protrusion to splice together, so that the two overlapping plates can be quickly aligned and assembled, with a flat and seamless surface, ensuring airtightness, reducing manual adjustment steps, and significantly saving time and manpower.

[0016] 2. This utility model achieves multi-directional limiting in the first and second docking holes through the synergistic effect of the limiting main rod, the spring structure and the limiting block. The limiting block is automatically driven into the limiting groove by the spring structure to form a rigid connection, effectively resisting external impact, improving the stability and displacement resistance of the overall structure, and enabling simple assembly that saves time and effort and improves overall practicality. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the first composite plate structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the second composite plate structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the limiting main rod structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the sleeve structure of this utility model;

[0023] Reference numerals in the figures: 1 - First composite plate, 2 - Second composite plate, 31 - First protrusion, 32 - Second protrusion, 4 - Groove, 5 - Second mating hole, 6 - First mating hole, 7 - Limiting groove, 8 - Limiting main rod, 9 - Rotating end, 10 - Wing bolt, 11 - Springback structure, 12 - Limiting block, 13 - Sleeve, 14 - Slot, 15 - Threaded hole. Detailed Implementation

[0024] The technical solutions in the embodiments of this utility model will be clearly and completely described below. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] Example 1:

[0026] See the examples. Figures 1 to 5 As shown, this utility model discloses a prefabricated building composite panel, including a first composite panel 1, which includes a rectangular portion. Multiple first protrusions 31 are spaced apart on both sides of the rectangular portion, and each first protrusion 31 has a first mating hole 6. A second composite panel 2 also includes a rectangular portion. Multiple second protrusions 32 are spaced apart on both sides of the rectangular portion, and a groove 4 is formed between two second protrusions 32. Each second protrusion 32 has a second mating hole 5. Four limiting grooves 7 are provided in both the second mating hole 5 and the first mating hole 6, distributed in four directions. The second mating hole 5 and the first mating hole 6 are vertically aligned. The first protrusions 31 are inserted into the grooves 4, and the second protrusions 32 abut against the rectangular portion of the first composite panel 1.

[0027] The first protrusion 31 and the second protrusion 32 have the same specifications. The first protrusion 31 and the groove 4 are correspondingly fitted. The upper end of the second protrusion 32 located at the top of the second composite plate 2 is flush with the upper end of the rectangular part of the second composite plate 2. The lower end of the second protrusion 32 located at the bottom of the second composite plate 2 is flush with the lower end of the rectangular part of the second composite plate 2. The upper end of the first protrusion 31 located at the top of the first composite plate 1 is lower than the upper end of the rectangular part of the first composite plate 1 by a distance of one groove 4. The lower end of the first protrusion 31 located at the bottom of the first composite plate 1 is higher than the lower end of the rectangular part of the first composite plate 1 by a distance of one groove 4. The upper end of the first composite plate 1 is flush with the upper end of the second composite plate 2. The lower end of the second composite plate 2 is flush with the lower end of the first composite plate 1.

[0028] A limiting main rod 8 is fitted with a sleeve 13 on its outer side. The sleeve 13 has multiple sets of slots 14, with four slots in each set. The limiting main rod 8, fitted with the sleeve 13, passes through multiple second docking holes 5 and multiple first docking holes 6 to fix the first composite plate 1 and the second composite plate 2. Multiple sets of limiting blocks 12 are spaced apart on the limiting main rod 8, with four blocks in each set. A spring-loaded structure 11 is provided between the limiting blocks 12 and the limiting main rod 8. The spring-loaded structure includes a spring, and the spring's elastic coefficient and stiffness coefficient meet the design requirements. The limiting main rod 8 is fixedly connected to the spring-loaded structure 11, and the spring-loaded structure 11 is fixedly connected to the limiting blocks 12. The four slots 14 are respectively set with the four limiting blocks 12. The limiting blocks 12 extend out of the outside of the slots 14 and are correspondingly engaged with the limiting slots 7. The limiting blocks 12 are arc-shaped.

[0029] The top of the limiting main rod 8 is fixedly connected to the rotating end 9. The rotating end 9 includes a cylindrical part and a crossbar part set above the cylindrical part. The crossbar part is set in the middle of the cylindrical part. Both sides of the crossbar part are provided with wing bolts. The top of the sleeve 13 is provided with threaded holes 15 on both sides. The lower end of the wing bolt passes through the rotating end 9 and is threadedly connected to the threaded hole 15, thereby realizing the connection between the limiting main rod 8 and the sleeve 13.

[0030] Specifically, its structure consists of a first composite plate 1, a second composite plate 2, a first protrusion 31, a second protrusion 32, a groove 4, a first mating hole 6, a second mating hole 5, a limiting groove 7, a limiting main rod 8, a rotating end 9, a wing bolt 10, a spring-loaded structure 11, a limiting block 12, a sleeve 13, a slot 14, and a threaded hole 15, forming a prefabricated building composite plate. The first protrusion 31, the second protrusion 32, and the groove 4 at both ends of the first composite plate 1 and the second composite plate 2 are correspondingly arranged, ensuring a proper fit and airtightness during assembly by using the tongue-and-groove structure. The first and second composite plates 1 and 2 are inserted into the limiting main rod 8 through the first docking hole 6 and the second docking hole 5 to limit their position, so that the limiting main rod 8 forms an interpenetrating support rod for the first and second composite plates 1 and 2. The limiting groove 7 cooperates with the screwing in of the limiting block 12 for further limiting and fixing. After the limiting main rod 8 is inserted into the docking hole along with the sleeve 13, the rotating end 9 facilitates the rotation and unscrewing of the limiting block 12. The limiting main rod 8 and the sleeve 13 are fixed in their initial state when not in use by the wing bolt 10. The initial state of the limiting main rod 8 and the sleeve 13 is that the limiting block 12 is placed in the position of the limiting main rod 8 and the sleeve 13. In the inner wall of sleeve 13, after rotating the limiting main rod 8, the limiting block 12 pops out through the restoring property of the spring-loaded structure 11 and simultaneously engages in the limiting groove 7 for fixation. The elasticity and restoring property of the spring-loaded structure 11 allow the limiting block 12 to be placed inside the sleeve 13. During the installation of the composite slab, it pops out with the slot and performs the limiting operation. The limiting block 12 aligns with the limiting grooves 7 in the first and second docking holes 6 and 5, ensuring that the limiting grooves 7 on all four sides of the inner sides of the first and second docking holes 6 and 5 engage with the limiting block 12. This allows for a stable connection between the two prefabricated building composite slabs, ensuring overall stability. 13 is sleeved onto the surface of the limiting main rod 8, allowing the limiting main rod 8, carrying the limiting block 12 and the spring-loaded structure 11, to be easily inserted into the mating hole. At the same time, in conjunction with the slot 14, the limiting block 12 can be easily released from the corresponding slot 14 for locking when the limiting main rod 8 rotates. The threaded hole 15 locks the limiting main rod 8 and sleeve 13 before they are inserted into the first mating hole 6 and the second mating hole 5, preventing the limiting main rod 8 from rotating and popping out the limiting block 12 before use. This allows the prefabricated building composite slab to be easily assembled, improving the overall installation stability and increasing overall work efficiency.

[0031] Example 2:

[0032] Construction steps of this utility model:

[0033] Using hoisting equipment, place the first composite plate 1 and the second composite plate 2 horizontally in the designed position. Align the first protrusions 31 on both sides of the first composite plate 1 with the grooves 4 of the second composite plate 2 and slowly insert them to ensure that the first protrusions 31 are fully embedded in the grooves 4. The upper and lower ends of the first composite plate 1 and the second composite plate 2 are flush and the surfaces are seamless.

[0034] The sleeve 13 is pre-fitted onto the outside of the limiting main rod 8, keeping the limiting block 12 in the initial position of the retracted state. The limiting main rod 8 with the sleeve 13 fitted is vertically inserted into the first docking hole 6 and the second docking hole 5 of the first composite plate 1 and the second composite plate 2. The rotating end 9 at the top of the limiting main rod 8 is rotated through the crossbar part, causing the limiting block 12 to be driven outward by the spring structure 11 and inserted into the limiting groove 7 in the first docking hole 6 and the second docking hole 5. The rotating end 9 can no longer rotate, thus confirming that the limiting block 12 is in place, making the overall assembly simple and effective.

[0035] 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 fabricated building superimposed board, characterized in that: include: The first composite plate (1) includes a rectangular portion, and a plurality of first protrusions (31) are provided at intervals on both sides of the rectangular portion. Each of the first protrusions (31) is provided with a first mating hole (6). The second composite plate (2) includes a rectangular portion, and a plurality of second protrusions (32) are provided at intervals on both sides of the rectangular portion. A groove (4) is formed between two second protrusions (32). A second mating hole (5) is provided on each of the second protrusions (32). The first protrusion (31) is inserted into the groove (4). The second protrusion (32) abuts against the rectangular portion of the first composite plate (1). The limiting main rod (8) is fitted with a sleeve (13) on its outer side. The limiting main rod (8) fitted with the sleeve 13 passes through multiple second docking holes (5) and multiple first docking holes (6) to fix the first composite plate (1) and the second composite plate (2) together.

2. The fabricated building superimposed board according to claim 1, characterized in that: The first protrusion (31) and the second protrusion (32) have the same specifications. The first protrusion (31) and the groove (4) are correspondingly fitted. The upper end of the second protrusion (32) located at the top of the second composite plate (2) is flush with the upper end of the rectangular part of the second composite plate (2). The lower end of the second protrusion (32) located at the bottom of the second composite plate (2) is flush with the lower end of the rectangular part of the second composite plate (2). The upper end of the first protrusion (31) located at the top of the first composite plate (1) is lower than the upper end of the rectangular part of the first composite plate (1) by a distance of one groove (4). The lower end of the first protrusion (31) located at the bottom of the first composite plate (1) is higher than the lower end of the rectangular part of the first composite plate (1) by a distance of one groove (4). The upper end of the first composite plate (1) is flush with the upper end of the second composite plate (2). The lower end of the second composite plate (2) is flush with the lower end of the first composite plate (1).

3. The fabricated building superimposed board according to claim 2, characterized in that: The second docking hole (5) and the first docking hole (6) are each provided with four limiting grooves (7), which are distributed in four directions. The second docking hole (5) and the first docking hole (6) are arranged vertically and vertically respectively.

4. The fabricated building superimposed board according to claim 3, characterized in that: Multiple sets of limiting blocks (12) are spaced apart on the limiting main rod (8). Each set of limiting blocks (12) includes four blocks. A spring-loaded structure (11) is provided between the limiting blocks (12) and the limiting main rod (8). The limiting main rod (8) is fixedly connected to the spring-loaded structure (11), and the spring-loaded structure (11) is fixedly connected to the limiting blocks (12).

5. The prefabricated building composite slab according to claim 4, characterized in that: The sleeve (13) has multiple sets of slots (14), each set of slots (14) has four slots, and the four slots (14) are respectively set with four limiting blocks (12). The limiting blocks (12) extend out of the outside of the slots (14), and the limiting blocks (12) are engaged with the limiting grooves (7). The limiting blocks (12) are arc-shaped.

6. The fabricated building superimposed board according to claim 5, characterized in that: The top end of the limiting main rod (8) is fixedly connected to the rotating end (9). The rotating end (9) includes a cylindrical part and a horizontal bar part set above the cylindrical part. The horizontal bar part is set in the middle of the cylindrical part. Both sides of the horizontal bar part are provided with butterfly bolts. The top end of the sleeve (13) is provided with threaded holes (15) on both sides. The lower end of the butterfly bolt passes through the rotating end (9) and is threadedly connected to the threaded hole (15), thereby realizing the connection between the limiting main rod (8) and the sleeve (13).

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