A fabricated concrete slab structure and a construction method thereof

Abstract

The application discloses an assembled concrete slab structure and a construction method thereof, and relates to the technical field of building components.The assembled concrete slab structure comprises a concrete slab body, a hanging frame, a connecting protrusion, a first elastic space, a first connecting mechanism arranged in the first elastic space, a first connecting slot, a supporting protrusion, a second elastic space, a second connecting mechanism arranged in the second elastic space, a second connecting slot, a fixing mechanism arranged on the concrete slab body, and a damping mechanism arranged on the fixing mechanism.The first connecting mechanism and the second connecting mechanism are respectively inserted into the first connecting slot and the second connecting slot through cooperation of the first connecting mechanism, the second connecting structure, a first limiting push block and a second push block, the vertical direction of the concrete slab body is limited, the first limiting push block and the second limiting push block are respectively inserted into the second elastic space and the first elastic space, the horizontal direction of the concrete slab body is limited, loosening in the connecting stage of adjacent slab components is effectively prevented, and the connecting stability is improved.

Description

Technical Field

[0001] This invention relates to the field of building component technology, and in particular to a prefabricated concrete slab structure and its construction method. Background Technology

[0002] In the process of industrialization of construction, prefabricated concrete panels have become the mainstream choice for wall construction due to their advantages such as high construction efficiency, energy saving and environmental protection, and controllable quality. Among them, autoclaved aerated concrete panels, as a typical lightweight concrete panel, are widely used in lightweight interior wall partitions, non-load-bearing exterior walls, and other scenarios due to their excellent properties such as lightweight and high strength, thermal insulation, fire resistance and sound insulation. The connection reliability of prefabricated concrete panels directly determines the overall stability and seismic performance of the wall, while its assembly efficiency affects the construction progress. Therefore, the connection structure must meet the dual core requirements of rapid assembly and stable positioning, which is the key to ensuring the construction quality and efficiency of prefabricated buildings.

[0003] Currently, the connection structures of autoclaved aerated concrete (AAC) panels on the market have significant technical defects. Existing connection methods mostly adopt a single slot-type connection or bolt fixing structure. Slot-type connections can only achieve simple vertical restraint, lacking effective horizontal constraint. Adjacent panels are prone to loosening and displacement during the assembly stage, resulting in large errors in wall flatness. Subsequent filling and leveling treatments are required, increasing construction procedures and costs. Although bolt fixing structures can improve connection stability, the assembly process requires precise alignment of bolt holes, which is cumbersome and seriously affects construction efficiency. Moreover, bolts are prone to corrosion when exposed for a long time, reducing the durability of the connection structure. In addition, traditional connection structures lack a coordinated restraint design, making it impossible to achieve reliable fixation in both vertical and horizontal directions simultaneously. Under building settlement or external forces, adjacent panels are prone to relative displacement, causing wall cracking, leakage, and other hidden dangers. As the requirements for construction efficiency and engineering quality in prefabricated buildings continue to increase, the design contradictions of cumbersome assembly or insufficient stability of traditional connection structures are becoming increasingly prominent. They can no longer meet the needs of rapid assembly and long-term stable use of AAC panels, becoming a bottleneck restricting the development of prefabricated wall construction technology and therefore urgently need improvement. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a prefabricated concrete slab structure and its construction method, which aims to solve the technical problems of easy loosening of the connection between adjacent slabs and poor overall connection stability in the prefabricated concrete slab.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A prefabricated concrete slab structure includes a concrete slab body and a hanger, the hanger being fixedly connected to the concrete slab body, and further includes: A connecting protrusion is fixedly mounted on the concrete slab body, and a first elastic space is provided on the connecting protrusion. The first connecting mechanism is disposed within the first elastic space; The first connecting slot is formed on the concrete slab body; A support protrusion is fixedly mounted on the concrete slab body, and a second elastic space is provided on the support protrusion. The second connecting mechanism is disposed within the second elastic space; The second connecting slot is provided on the concrete slab body; The fixing mechanism is installed on the concrete slab body; The vibration damping mechanism, installed on the fixed mechanism, is used to reduce the impact of vibration on the concrete slab.

[0006] Preferably, the first connecting mechanism includes: The first connecting inclined plate is slidably disposed within the first elastic space; Multiple first springs are provided, and multiple first springs are disposed on a first connecting inclined plate, with one end of each first spring being fixedly connected to the first connecting inclined plate. The first movable inclined plate is slidably disposed inside the connecting protrusion and is fixedly connected to the other end of the first spring; There are four first sliding blocks. Two first sliding blocks are symmetrically fixed on the first connecting inclined plate, and two first sliding blocks are symmetrically fixed on the first moving inclined plate. The first sliding blocks are slidably connected to the connecting protrusions.

[0007] Preferably, two first sliding grooves are symmetrically formed inside the connecting protrusion. The first sliding grooves are connected to the first elastic space and are used to limit the sliding trajectory of the first sliding block.

[0008] Preferably, the second connecting mechanism includes: The second connecting ramp is slidably mounted on the supporting protrusion; The second movable inclined plate is set in the second elastic space and is slidably connected to the supporting protrusion; Multiple second springs are provided, and multiple second springs are disposed on the second connecting inclined plate. One end of the second spring is fixedly connected to the second connecting inclined plate, and the other end is fixedly connected to the second movable inclined plate. There are four second sliding blocks. Two second sliding blocks are symmetrically fixed on the second connecting inclined plate, and two second sliding blocks are symmetrically fixed on the second moving inclined plate. The second sliding blocks are slidably connected to the supporting protrusions.

[0009] Preferably, two second sliding grooves are symmetrically formed on the support protrusion. The second sliding grooves are connected to the second elastic space and are used to define the sliding trajectory of the second sliding block.

[0010] Preferably, the connecting protrusion has multiple guide holes, and the supporting protrusion has multiple guide rods fixedly mounted on it.

[0011] Preferably, a first limiting push plate is fixedly provided on the connecting protrusion, and a second limiting push plate is fixedly provided on the supporting protrusion.

[0012] Preferably, the fixing mechanism includes: Multiple positioning bolts are provided and are fixedly connected to the concrete slab body. Two shock absorber brackets are provided, and the two shock absorber brackets are fixedly mounted on positioning bolts; Multiple lifting platforms are provided, and these platforms are fixedly mounted on shock-absorbing brackets.

[0013] Preferably, the shock absorption mechanism includes: Multiple protective platforms are provided, and these platforms are slidably mounted on the lifting platform. Two buffer plates are provided, which are fixedly connected to the protective platform. A buffer rubber sheet is fixedly mounted on the buffer support plate; Multiple dampers are provided, and the multiple dampers are fixedly installed on the buffer slide and fixedly connected to the lifting platform; Multiple buffer springs are provided and installed inside the protective platform. One end of each buffer spring is fixedly connected to the lifting platform, and the other end is fixedly connected to the buffer support plate.

[0014] Preferably, a method for constructing prefabricated concrete slabs includes the following steps: S1. Lifting and Alignment: Use a crane to lift the concrete slab body and initially align it with the adjacent concrete slab body. S2, Guided docking: Align the guide hole on the connecting protrusion with the guide rod on the adjacent concrete slab support protrusion; S3. Two-way locking: The concrete slab is lowered so that the first connecting mechanism and the second connecting mechanism are respectively engaged in the first connecting slot and the second connecting slot to achieve vertical limiting. At the same time, the first limiting push plate and the second limiting push plate are respectively inserted into the second elastic space and the first elastic space to achieve horizontal locking. S4. Vibration-damping installation: The concrete slab body is installed onto the supporting structure through the fixing mechanism and the vibration-damping mechanism.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: Through the cooperation of the first connecting mechanism, the second connecting structure, the first limiting push block, and the second push block, the first connecting mechanism and the second connecting mechanism are respectively inserted into the first connecting slot and the second connecting slot to achieve vertical positioning of the concrete slab body. The first limiting push block and the second limiting push block are respectively inserted into the second elastic space and the first elastic space to achieve horizontal positioning of the concrete slab body. This achieves rapid assembly while effectively preventing loosening during the connection stage of adjacent plates, thus improving connection stability. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A three-dimensional structural diagram of a prefabricated concrete slab structure is shown.

[0018] Figure 2 It shows Figure 1 A frontal sectional view.

[0019] Figure 3 It shows Figure 2 A magnified view of a portion of point A in the middle.

[0020] Figure 4 It shows Figure 2 A frontal sectional view.

[0021] Figure 5 It shows Figure 4 A magnified view of a section at point B.

[0022] Figure 6 It shows Figure 1 A partial three-dimensional structural diagram.

[0023] Figure 7 It shows Figure 6 Top view sectional view.

[0024] Figure 8 It shows Figure 6 A bottom-view cross-sectional view.

[0025] Figure 9 A three-dimensional structural schematic diagram of the first connecting mechanism is shown.

[0026] Figure 10 A flowchart of a prefabricated concrete slab construction method is shown.

[0027] Legend: 1. Concrete slab body; 2. Hanger; 3. Connecting protrusion; 4. First elastic space; 5. First connecting slot; 6. Supporting protrusion; 7. Second elastic space; 8. Second connecting slot; 9. First connecting inclined plate; 10. First spring; 11. First moving inclined plate; 12. First sliding block; 13. First sliding groove; 14. Second connecting inclined plate; 15. Second moving inclined plate; 16. Second spring; 17. Second sliding block; 18. Second sliding groove; 19. Guide hole; 20. Guide rod; 21. First limiting push plate; 22. Second limiting push plate; 23. Positioning bolt; 24. Vibration damping bracket; 25. Lifting platform; 26. Protective platform; 27. Buffer support plate; 28. Buffer rubber plate; 29. ​​Damper; 30. Buffer spring. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] In the description of this invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0030] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] Reference Figures 1 to 9 The present invention provides a further description of an embodiment of a prefabricated concrete slab structure and its construction method.

[0033] A prefabricated concrete slab structure includes a concrete slab body 1 and a hanger 2, the hanger 2 being fixedly connected to the concrete slab body 1, and further includes: Reference Figure 1 , Figure 5 , Figure 6 , Figure 7 and Figure 9 In a preferred embodiment, the connecting protrusion 3 is fixedly mounted on the concrete slab body 1, and a first elastic space 4 is provided on the connecting protrusion 3. A first connecting mechanism is disposed within the first elastic space 4; the first connecting mechanism includes: The first connecting inclined plate 9 is slidably disposed within the first elastic space 4; Multiple first springs 10 are provided, and multiple first springs 10 are disposed on the first connecting inclined plate 9. One end of the first spring 10 is fixedly connected to the first connecting inclined plate 9. The first movable inclined plate 11 is slidably disposed in the connecting protrusion 3 and is fixedly connected to the other end of the first spring 10; There are four first sliding blocks 12. Two first sliding blocks 12 are symmetrically fixed on the first connecting inclined plate 9, and two first sliding blocks 12 are symmetrically fixed on the first moving inclined plate 11. The first sliding blocks 12 are slidably connected to the connecting protrusion 3.

[0034] Two first sliding grooves 13 are symmetrically formed inside the connecting protrusion 3. The first sliding grooves 13 are connected to the first elastic space 4 and are used to limit the sliding trajectory of the first sliding block 12.

[0035] The first connecting slot 5 is opened on the concrete slab body 1; Multiple guide holes 19 are provided on the connecting protrusion 3, and multiple guide rods 20 are fixed on the supporting protrusion 6.

[0036] A second limiting push plate 22 is fixedly provided on the supporting protrusion 6.

[0037] During operation, the entire concrete slab structure is lifted by the hanger 2, and two adjacent concrete slabs are aligned so that the guide hole 19 on the connecting protrusion 3 aligns with the guide rod on the support platform protrusion. This allows the connecting protrusion 3 to slide downwards along the guide rod 20. During this process, the concrete slab body 1 presses against the first connecting inclined plate 9, causing the first sliding block 12, which is fixedly connected to it, to slide along the first sliding groove 13 within the first elastic space 4. Simultaneously, the first spring 10 is compressed, storing elastic potential energy. When the first connecting inclined plate 9 aligns with the first connecting slot 5, the pressing force dissipates. After the first spring 10 is released, it resets and releases its elastic potential energy, pushing the first moving inclined plate 11 to slide in the opposite direction and insert into the first connecting slot 5, thus completing the connection of the adjacent concrete slab body 1; moreover, the second limiting push plate 22 on the supporting protrusion 6 is inserted into the first elastic space 4, pushing the first moving inclined plate 11 to move along the inclined surface of the first moving inclined plate 11. The first moving inclined plate 11 drives the first sliding block 12, which is fixedly connected to it, to move along the first sliding groove 13 in the first elastic space 4. The first sliding block 12 squeezes the first spring 10, increasing the elastic squeezing force on the first connecting inclined plate 9. Reference Figure 4 , Figure 5 and Figure 8 In a preferred embodiment, the support protrusion 6 is fixedly mounted on the concrete slab body 1, and a second elastic space 7 is provided on the support protrusion 6. The second connecting mechanism is disposed within the second elastic space 7; the second connecting mechanism includes: The second connecting inclined plate 14 is slidably mounted on the supporting protrusion 6; The second movable inclined plate 15 is disposed within the second elastic space 7 and is slidably connected to the supporting protrusion 6; Multiple second springs 16 are provided, and multiple second springs 16 are disposed on the second connecting inclined plate 14. One end of the second spring 16 is fixedly connected to the second connecting inclined plate 14, and the other end is fixedly connected to the second moving inclined plate 15. There are four second sliding blocks 17. Two second sliding blocks 17 are symmetrically fixed on the second connecting inclined plate 14, and two second sliding blocks 17 are symmetrically fixed on the second moving inclined plate 15. The second sliding blocks 17 are slidably connected to the supporting protrusion 6.

[0038] Two second sliding grooves 18 are symmetrically formed on the support protrusion 6. The second sliding grooves 18 are connected to the second elastic space 7 and are used to limit the sliding trajectory of the second sliding block 17.

[0039] The second connecting slot 8 is opened on the concrete slab body 1; A first limiting push plate 21 is fixedly provided on the connecting protrusion 3; During operation, the concrete slab body 1 presses against the second connecting inclined plate 14 along the inclined surface of the second connecting inclined plate 14, causing the second sliding block 17, which is fixedly connected to it, to slide along the second sliding groove 18 in the second elastic space 7. During the movement, the second sliding block 17 presses against the second spring 16, causing the second spring 16 to store elastic potential energy. When the second connecting inclined plate 14 aligns with the second connecting slot 8 on the adjacent concrete slab body 1, the pressing force disappears. Subsequently, the second spring 16 releases its elastic potential energy to push the second connecting inclined plate 14 into the second connecting slot 8. The non-inclined surface of the second connecting inclined plate 14 and the non-inclined surface of the first connecting inclined plate 9 provide vertical limitation. During this process, the first limiting push plate 21 on the connecting protrusion 3 is inserted into the second elastic space 7. The first limiting push plate 21 moves along the inclined surface of the second moving inclined plate 15, causing the second moving inclined plate 15 to drive the second sliding block 17 to move along the second sliding groove 18 in the second elastic space 7. It cooperates with the second limiting push plate 22 to achieve horizontal limitation, completing the connection of the adjacent concrete slab bodies 1 and greatly improving the connection strength of the concrete slabs. Reference Figures 1 to 3 In a preferred embodiment, the fixing mechanism is disposed on the concrete slab body 1; the fixing mechanism includes: Multiple positioning bolts 23 are provided and are fixedly connected to the concrete slab body 1; they are used to pass through the concrete slab body 1 to rigidly fix the shock absorber bracket 24 to the concrete slab body 1. Two shock absorber brackets 24 are provided, and the two shock absorber brackets 24 are fixedly mounted on the positioning bolts 23; Multiple lifting platforms 25 are provided, and multiple lifting platforms 25 are fixedly installed on the shock-absorbing bracket 24.

[0040] A vibration damping mechanism, mounted on a fixed structure, is used to reduce the impact of vibrations on the concrete slab body 1. The vibration damping mechanism includes: Multiple protective platforms 26 are provided, and multiple protective platforms 26 are slidably mounted on the lifting platform 25; Two buffer plates 27 are provided, and the two buffer plates 27 are set on the protective platform 26 and fixedly connected to the protective platform 26. The buffer rubber plate 28 is fixedly installed on the buffer support plate 27; Multiple dampers 29 are provided, and multiple dampers 29 are fixedly installed on the buffer slide and fixedly connected to the lifting platform 25. Multiple buffer springs 30 are provided and are installed inside the protective platform 26. One end of the buffer spring 30 is fixedly connected to the lifting platform 25 and the other end is fixedly connected to the buffer support plate 27.

[0041] During operation, the vibration and impact first act on the buffer rubber plate 28. The buffer rubber plate 28 absorbs small vibrations through its own flexible deformation, playing a preliminary buffering role. The remaining vibration and impact force is transmitted to the buffer support plate 27. The buffer support plate 27 and the lifting platform 25 compress the buffer spring 30. The lifting platform 25 slides along the inside of the protective platform 26. The buffer spring 30 absorbs the impact energy of large vibrations through elastic deformation. At the same time, the damper 29 works synchronously to consume the reciprocating kinetic energy generated by the vibration, suppress the elastic oscillation of the spring, and avoid the continuous superposition of vibrations. After the vibration disappears, the buffer spring 30 relies on its own elasticity to reset, driving the buffer support plate 27 and the buffer rubber plate 28 to return to their original shape. This effectively reduces the impact of vibration on the concrete slab body 1, avoids cracking and damage to the concrete slab body 1 due to repeated vibrations, and greatly extends the service life of the concrete slab.

[0042] Reference Figure 10 A method for constructing prefabricated concrete slabs includes the following steps: hoisting and alignment: using a hoist 2 to lift the concrete slab body 1 and initially align it with the adjacent concrete slab body 1; guiding and docking: aligning the guide hole 19 on the connecting protrusion 3 and fitting it into the guide rod 20 on the supporting protrusion 6 of the adjacent concrete slab body 1; bidirectional locking: lowering the concrete slab body so that the first connecting mechanism and the second connecting mechanism respectively engage with the first connecting slot 5 and the second connecting slot 8 to achieve vertical limiting, while simultaneously inserting the first limiting push plate 21 and the second limiting push plate 22 into the second elastic space 7 and the first elastic space 4 respectively to achieve horizontal locking; vibration damping installation: installing the concrete slab body 1 onto the supporting structure through the fixing mechanism and the vibration damping mechanism.

[0043] Working principle: The entire concrete slab structure is lifted by the hanger 2, and two adjacent concrete slabs are aligned so that the guide hole 19 on the connecting protrusion 3 aligns with the guide rod on the support platform protrusion. The connecting protrusion 3 then slides down along the guide rod 20. During this process, the concrete slab body 1 presses against the first connecting inclined plate 9, causing the first sliding block 12, which is fixedly connected to it, to slide along the first sliding groove 13 within the first elastic space 4. Simultaneously, the first spring 10 is compressed, storing elastic potential energy. When the first connecting inclined plate 9 aligns with the first connecting slot 5, the pressing force disappears, and the first spring 10 resets, releasing its elastic potential energy. This pushes the first moving inclined plate 11 to slide in the opposite direction and insert into the first connecting slot 5, completing the connection of adjacent concrete slab bodies 1. Furthermore, the second limiting push plate 22 on the support protrusion 6 inserts into the first elastic space 4, pushing the first moving inclined plate 11 along its inclined surface. The first moving inclined plate 11 causes the first sliding block 12, which is fixedly connected to it, to move along the first sliding groove 13 within the first elastic space 4. The first sliding block 12 presses against the first spring 10, enhancing the connection of the first connecting plate body 1. The concrete slab body 1 presses against the inclined plate 9 along the inclined surface of the second connecting inclined plate 14, causing the second sliding block 17, which is fixedly connected to it, to slide along the second sliding groove 18 within the second elastic space 7. During the movement, the second sliding block 17 presses against the second spring 16, causing the second spring 16 to store elastic potential energy. When the second connecting inclined plate 14 aligns with the second connecting slot 8 on the adjacent concrete slab body 1, the pressing force disappears. Subsequently, the second spring 16 releases its elastic potential energy to push the second connecting inclined plate 14 into the second connecting slot. 8. The non-sloping surface of the second connecting inclined plate 14 and the non-sloping surface of the first connecting inclined plate 9 serve as vertical limiters. During this process, the first limiting push plate 21 on the connecting protrusion 3 is inserted into the second elastic space 7. The first limiting push plate 21 moves along the inclined surface of the second moving inclined plate 15, causing the second moving inclined plate 15 to drive the second sliding block 17 to move along the second sliding groove 18 in the second elastic space 7. It cooperates with the second limiting push plate 22 to achieve horizontal limiters, complete the connection of adjacent concrete slab bodies 1, and greatly improve the connection strength of the concrete slabs.The vibration impact first acts on the buffer rubber plate 28. The buffer rubber plate 28 absorbs small vibrations through its own flexible deformation, playing a preliminary buffering role. The remaining vibration impact force is transmitted to the buffer support plate 27. The buffer support plate 27 and the lifting platform 25 compress the buffer spring 30. The lifting platform 25 slides along the inside of the protective platform 26. The buffer spring 30 absorbs the impact energy of large vibrations through elastic deformation. At the same time, the damper 29 works synchronously to consume the reciprocating kinetic energy generated by the vibration, suppress the elastic oscillation of the spring, and prevent the vibration from continuing to accumulate. After the vibration disappears, the buffer spring 30 returns to its original state by its own elasticity, driving the buffer support plate 27 and the buffer rubber plate 28 to return to their original shape. This effectively reduces the impact of vibration on the concrete slab body 1, prevents the concrete slab body 1 from cracking and breaking due to repeated vibration, and greatly extends the service life of the concrete slab.

[0044] The above description of the embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A prefabricated concrete slab structure, comprising a concrete slab body (1) and a hanger (2), wherein the hanger (2) is fixedly connected to the concrete slab body (1), characterized in that, Also includes: A connecting protrusion (3) is fixedly installed on the concrete slab body (1), and a first elastic space (4) is provided on the connecting protrusion (3). The first connecting mechanism is disposed within the first elastic space (4); The first connecting slot (5) is opened on the concrete slab body (1); A support protrusion (6) is fixedly installed on the concrete slab body (1), and a second elastic space (7) is provided on the support protrusion (6). The second connecting mechanism is disposed within the second elastic space (7); The second connecting slot (8) is provided on the concrete slab body (1); A fixing mechanism is installed on the concrete slab body (1); A shock-absorbing mechanism is installed on the fixing mechanism to reduce the impact of vibration on the concrete slab body (1).

2. The prefabricated concrete slab structure according to claim 1, characterized in that, The first connecting mechanism includes: The first connecting inclined plate (9) is slidably disposed within the first elastic space (4); Multiple first springs (10) are provided, and multiple first springs (10) are disposed on the first connecting inclined plate (9). One end of the first spring (10) is fixedly connected to the first connecting inclined plate (9). The first movable inclined plate (11) is slidably disposed in the connecting protrusion (3) and fixedly connected to the other end of the first spring (10); There are four first sliding blocks (12). Two first sliding blocks (12) are symmetrically fixed on the first connecting inclined plate (9), and two first sliding blocks (12) are symmetrically fixed on the first moving inclined plate (11). The first sliding blocks (12) are slidably connected to the connecting protrusion (3).

3. The prefabricated concrete slab structure according to claim 2, characterized in that, Two first sliding grooves (13) are symmetrically formed inside the connecting protrusion (3). The first sliding grooves (13) are connected to the first elastic space (4) and are used to limit the sliding trajectory of the first sliding block (12).

4. The prefabricated concrete slab structure according to claim 3, characterized in that, The second connecting mechanism includes: The second connecting inclined plate (14) is slidably disposed on the supporting protrusion (6); The second movable inclined plate (15) is disposed in the second elastic space (7) and is slidably connected to the supporting protrusion (6); Multiple second springs (16) are provided, and multiple second springs (16) are provided on the second connecting inclined plate (14). One end of the second spring (16) is fixedly connected to the second connecting inclined plate (14), and the other end is fixedly connected to the second moving inclined plate (15). There are four second sliding blocks (17). Two second sliding blocks (17) are symmetrically fixed on the second connecting inclined plate (14), and two second sliding blocks (17) are symmetrically fixed on the second moving inclined plate (15). The second sliding blocks (17) are slidably connected to the supporting protrusion (6).

5. A prefabricated concrete slab structure according to claim 4, characterized in that, Two second sliding grooves (18) are symmetrically formed on the support protrusion (6). The second sliding grooves (18) are connected to the second elastic space (7) and are used to limit the sliding trajectory of the second sliding block (17).

6. A prefabricated concrete slab structure according to claim 5, characterized in that, The connecting protrusion (3) has multiple guide holes (19), and the supporting protrusion (6) has multiple guide rods (20) fixedly installed.

7. A prefabricated concrete slab structure according to claim 6, characterized in that, The connecting protrusion (3) is fixedly provided with a first limiting push plate (21), and the supporting protrusion (6) is fixedly provided with a second limiting push plate (22).

8. A prefabricated concrete slab structure according to claim 7, characterized in that, The fixing mechanism includes: Positioning bolts (23) are provided in multiples, and multiple positioning bolts (23) are set on the concrete slab body (1) and fixedly connected to the concrete slab body (1); Two shock absorber brackets (24) are provided, and the two shock absorber brackets (24) are fixedly mounted on the positioning bolts (23); Multiple lifting platforms (25) are provided, and multiple lifting platforms (25) are fixedly installed on the shock-absorbing bracket (24).

9. A prefabricated concrete slab structure according to claim 8, characterized in that, The shock absorption mechanism includes: Multiple protective platforms (26) are provided, and multiple protective platforms (26) are slidably arranged on the lifting platform (25); Two buffer trays (27) are provided, and the two buffer trays (27) are set on the protective platform (26) and fixedly connected to the protective platform (26); A buffer rubber sheet (28) is fixedly mounted on the buffer support plate (27); Multiple dampers (29) are provided, and multiple dampers (29) are fixedly installed on the buffer slide and fixedly connected to the lifting platform (25); Multiple buffer springs (30) are provided. Multiple buffer springs (30) are set inside the protective platform (26). One end of the buffer spring (30) is fixedly connected to the lifting platform (25), and the other end is fixedly connected to the buffer support plate (27).

10. A method for constructing prefabricated concrete slabs, characterized in that, Includes the following steps: S1. Lifting and positioning: Use the gantry (2) to lift the concrete slab body (1) and initially align it with the adjacent concrete slab body (1); S2, guide docking: align the guide hole (19) on the connecting protrusion (3) and insert it into the guide rod (20) on the adjacent concrete slab body (1) support protrusion (6). S3, bidirectional locking: lower the concrete slab body so that the first connecting mechanism and the second connecting mechanism are respectively inserted into the first connecting slot (5) and the second connecting slot (8) to achieve vertical limiting, and at the same time, the first limiting push plate (21) and the second limiting push plate (22) are respectively inserted into the second elastic space (7) and the first elastic space (4) to achieve horizontal locking; S4. Vibration damping installation: The concrete slab body (1) is installed onto the supporting structure through the fixing mechanism and the vibration damping mechanism.

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