A dry connection structure for prefabricated beams and prefabricated floor slabs

Abstract

This application provides a dry connection structure for prefabricated beams and prefabricated floor slabs, relating to the field of building engineering. It includes: prefabricated beams and prefabricated floor slabs. Pre-embedded bolts are installed on the prefabricated beams, and a connecting plate is fixedly installed on the prefabricated floor slab. A connecting hole is formed through the connecting plate, and the pre-embedded bolt passes through the connecting hole. A locking nut is threaded onto the pre-embedded bolt, and the locking nut abuts against the connecting plate. A reinforcing component is provided between the prefabricated beam and the prefabricated floor slab. The reinforcing component includes: a plug-in part and a snap-fit ​​part. The plug-in part is located between the prefabricated beam and the prefabricated floor slab, and the snap-fit ​​part is located between the plug-in part and the prefabricated beam. This application has the effect of improving the connection strength between the prefabricated beam and the prefabricated floor slab.

Description

Technical Field

[0001] This application relates to the field of building engineering, and in particular to a dry connection structure for prefabricated beams and prefabricated floor slabs. Background Technology

[0002] Prefabricated buildings refer to buildings where a large amount of on-site work in traditional construction methods is transferred to factories. Building components and accessories (such as beams, floor slabs, wall panels, stairs, balconies, etc.) are prefabricated in factories, then transported to the construction site, and assembled on-site using reliable connection methods.

[0003] Precast beams and precast floor slabs often need to be assembled. Currently, the connection between precast beams and precast floor slabs is mostly achieved by first using pre-embedded bolts for dry connection, and then reinforced by concrete pouring.

[0004] However, relying solely on pre-embedded bolts for dry connections is not only a flimsy connection method, but also prone to loosening and has low strength. Summary of the Invention

[0005] To address the problems existing in the above-mentioned technologies, this application provides a dry connection structure for prefabricated beams and prefabricated floor slabs.

[0006] This application provides a dry connection structure for prefabricated beams and prefabricated floor slabs, employing the following technical solution:

[0007] A dry connection structure for prefabricated beams and prefabricated floor slabs includes: prefabricated beams and prefabricated floor slabs. Pre-embedded bolts are provided on the prefabricated beams. A connecting plate is fixedly provided on the prefabricated floor slab. A connecting hole is provided through the connecting plate. The pre-embedded bolts pass through the connecting hole, and a locking nut is threaded onto the pre-embedded bolts. The locking nut abuts against the connecting plate. A reinforcing component is provided between the prefabricated beams and the prefabricated floor slabs. The reinforcing component includes: a plug-in portion and a snap-fit ​​portion. The plug-in portion is located between the prefabricated beams and the prefabricated floor slabs, and the snap-fit ​​portion is located between the plug-in portion and the prefabricated beams.

[0008] By adopting the above technical solution, the precast beam and the precast floor slab are initially connected by the plug-in part; then the plug-in part is connected to the precast beam by the snap-fit ​​part; finally, the locking nut is tightened to complete the fixed connection between the precast beam and the precast floor slab. This connection method relies not only on the pre-embedded bolts, but also on the plug-in part and the snap-fit ​​part, thereby improving the connection strength between the precast beam and the precast floor slab.

[0009] Optionally, the plug-in part includes: a plug-in block and a reverse plug-in rod, a reinforcing groove is provided on the precast beam, the plug-in block is fixed to the precast floor slab and is disposed in the reinforcing groove, a reverse plug-in hole is provided on the plug-in block, one end of the reverse plug-in rod is disposed in the reverse plug-in hole and the other end is fixed to the bottom of the reinforcing groove, and the snap-fit ​​part is disposed between the plug-in block and the precast beam.

[0010] By adopting the above technical solution, during assembly, the plug-in block is inserted into the reinforcing groove; at the same time, the reverse plug rod is inserted into the reverse plug hole. The cooperation between the plug-in block and the reverse plug rod can form a limit in the vertical direction.

[0011] Optionally, the snap-fit ​​part includes a snap-fit ​​rod and a snap-fit ​​spring. The inner wall of the reinforcing groove is provided with a snap-fit ​​hole. One end of the snap-fit ​​spring is connected to the plug block and the other end is fixedly connected to the snap-fit ​​rod. The end of the snap-fit ​​rod away from the snap-fit ​​spring is disposed in the snap-fit ​​hole.

[0012] By adopting the above technical solution, during the insertion of the plug-in block, when the locking rod and the locking spring are aligned, the locking rod is pushed into the locking hole by the elastic force of the locking spring, thereby completing the connection between the precast beam and the precast floor slab, and increasing the strength between the precast beam and the precast floor slab.

[0013] Optionally, a bearing component is provided between the snap-fit ​​spring and the plug-in block, and a stabilizing component is provided between the snap-fit ​​rod and the plug-in block. The bearing component includes an iron block and a magnetic block. A sliding groove is provided on the plug-in block, the iron block is slidably connected in the sliding groove, the magnetic block is fixed in the sliding groove, and a receiving hole is provided on the iron block. One end of the snap-fit ​​rod away from the snap-fit ​​hole is disposed in the receiving hole, and one end of the snap-fit ​​spring away from the snap-fit ​​rod is fixed to the bottom of the receiving hole.

[0014] By adopting the above technical solution, the magnetic block's attraction to the iron block is that when the plug-in block is inserted, before the locking rod reaches the locking hole, the locking rod is not likely to slide towards the side closer to the precast floor slab due to abutting against the inner wall of the reinforcing groove, thus keeping the locking rod always at the end of the slide groove away from the precast floor slab.

[0015] Optionally, the stabilizing component includes a driving part, a pressing part, and a stabilizing part. The stabilizing part includes an iron sheet, a rotating plate, and a pushing plate. A placement hole is provided through the snap-fit ​​rod, and a stabilizing hole is provided on the inner wall of the snap-fit ​​hole. One end of the iron sheet is fixed to the snap-fit ​​rod, and the other end is disposed in the stabilizing hole. The rotating plate is rotatably installed in the placement hole. One end of the pushing plate is fixed to the rotating plate, and the other end is pressed against the iron sheet. The driving part is disposed between the insertion block and the iron block, and the pressing part is disposed on the driving part.

[0016] By adopting the above technical solution, as the iron block approaches the precast floor slab, the driving part can drive the extrusion part to extrude the stabilizing part, so that the stabilizing part can be connected with the precast beam, thereby improving the stability of the locking rod inserted in the locking hole, and further improving the connection strength between the precast beam and the precast floor slab.

[0017] Optionally, the extrusion part includes: an extrusion column, a limiting rod, and a screw. The extrusion column abuts against the rotating plate, and the extrusion column is provided with a threaded hole and a limiting hole. The screw is rotatably installed in the placement hole, with one end connected to the driving part and the other end threadedly connected to the threaded hole. One end of the limiting rod is fixed to the inner wall of the snap-fit ​​hole, and the other end passes through the limiting hole.

[0018] By adopting the above technical solution, as the iron block approaches the precast floor slab, the driving part can drive the screw to rotate. The rotation of the screw will drive the extrusion column to approach the bottom of the snap-fit ​​hole. At this time, the extrusion column will extrude the rotating plate, and the pushing plate will extrude the iron sheet, so that the iron sheet can be bent into the stable hole, thereby allowing the snap-fit ​​rod to be inserted more stably into the snap-fit ​​hole.

[0019] Optionally, the drive unit includes: a rack, a gear, and a square rod. The bottom of the slide groove has a mounting groove, the rack is fixed in the mounting groove, the screw has a sliding hole, the bottom of the receiving hole has a clearance hole, the square rod is rotatably mounted in the clearance hole and one end slides in the sliding hole, the other end extends into the mounting groove and is fixed to the gear, and the gear meshes with the rack.

[0020] By adopting the above technical solution, as the iron block approaches the precast floor slab, the gear will rotate, and the rotation of the gear will drive the square rod to drive the screw to rotate.

[0021] Optionally, the precast beam is provided with grouting holes that communicate with the reinforcing groove.

[0022] By adopting the above technical solution, after the precast beam and the precast floor slab are connected, concrete can be injected into the reinforcing groove through the grouting hole to reinforce the splice block, that is, to reinforce the precast beam and the precast floor slab, thereby improving the strength between the precast beam and the precast floor slab.

[0023] Optionally, the precast beam has embedded reinforcing bars, and the precast floor slab has insertion holes, with one end of the embedded reinforcing bar away from the precast beam placed in the insertion hole.

[0024] By adopting the above technical solution, the pre-embedded steel bars can further improve the connection strength between the precast beam and the precast floor slab after the concrete is poured.

[0025] Optionally, a support plate is fixedly installed on the side wall of the precast beam, a support spring is fixedly installed on the support plate, a support plate is fixedly installed on the support spring, and the support plate is fixed to the precast floor slab by fixing bolts.

[0026] By adopting the above technical solution, the support spring can support the precast floor slab, and when the precast floor slab is subjected to vibration, the support spring can buffer the vibration, so that the precast beam and the precast floor slab are not prone to breakage.

[0027] In summary, this application includes at least one of the following beneficial effects:

[0028] 1. The precast beam and the precast floor slab are initially connected by the plug-in part; then the plug-in part is connected to the precast beam by the snap-fit ​​part; finally, the locking nut is tightened to complete the fixed connection between the precast beam and the precast floor slab. This connection method relies not only on the pre-embedded bolts, but also on the plug-in part and the snap-fit ​​part, which can improve the connection strength between the precast beam and the precast floor slab.

[0029] 2. After the precast beam is connected to the precast floor slab, concrete can be injected into the reinforcing groove through the grouting hole to reinforce the splice block, that is, to reinforce the precast beam and the precast floor slab, thereby improving the strength between the precast beam and the precast floor slab.

[0030] 3. After the concrete is poured, the pre-embedded steel bars can further improve the connection strength between the precast beam and the precast floor slab. Attached Figure Description

[0031] Figure 1 This is a structural schematic diagram according to an embodiment of this application;

[0032] Figure 2 yes Figure 1 A schematic enlarged view of part A in the middle;

[0033] Figure 3 yes Figure 1 A schematic enlarged view of part B.

[0034] In the diagram: 1. Precast beam; 11. Embedded bolt; 111. Locking nut; 12. Embedded reinforcing bar; 13. Reinforcing groove; 14. Snap-fit ​​hole; 141. Stabilizing hole; 15. Support plate; 151. Support spring; 152. Support plate; 153. Fixing bolt; 16. Grouting hole; 2. Precast floor slab; 21. Connecting plate; 22. Insertion hole; 3. Insertion part; 31. Insertion block; 311. Reverse insertion hole; 312. Slide groove; 313. Placement groove; 32. Reverse insertion rod; 4. 41. Snap-fit ​​part; 411. Snap-fit ​​rod; 42. Placement hole; 5. Snap-fit ​​spring; 5. Bearing assembly; 51. Iron block; 511. Accommodation hole; 512. Displacement hole; 52. Magnetic block; 6. Stabilizing part; 61. Iron sheet; 62. Rotating plate; 63. Push plate; 7. Extrusion part; 71. Extrusion column; 711. Threaded hole; 712. Limiting hole; 72. Limiting rod; 73. Screw; 731. Sliding hole; 8. Driving part; 81. Rack; 82. Gear; 83. Square rod. Detailed Implementation

[0035] This application provides a dry connection structure for prefabricated beams and prefabricated floor slabs.

[0036] See Figure 1 and Figure 2 A dry connection structure for prefabricated beams and prefabricated floor slabs generally includes: a prefabricated beam 1 and a prefabricated floor slab 2. Pre-embedded bolts 11 are pre-installed on the prefabricated beam 1. Connecting plates 21 are fixedly installed on the top and bottom walls of the prefabricated floor slab 2, and connecting holes are provided through the side walls of the connecting plates 21. Each pre-embedded bolt 11 corresponds one-to-one with a connecting hole, and the pre-embedded bolt 11 passes through the connecting hole. A locking nut 111 is threaded onto each pre-embedded bolt 11, and the locking nut 111 abuts against the side of the connecting plate 21 opposite to the prefabricated beam 1. During assembly, the prefabricated floor slab 2 is lifted, the connecting holes are aligned with the pre-embedded bolts 11, and the pre-embedded bolts 11 are passed through the connecting holes. Finally, the locking nut 111 is screwed onto the pre-embedded bolts 11 and abuts against the connecting plate 21, thereby completing the fixed connection between the prefabricated beam 1 and the prefabricated floor slab 2.

[0037] See Figure 1 and Figure 3 A reinforcing component is provided between the precast beam 1 and the precast floor slab 2. The reinforcing component includes: a plug-in part 3 and a snap-fit ​​part 4.

[0038] See Figure 1The insertion part 3 includes an insertion block 31 and a reverse insertion rod 32. A reinforcing groove 13 is formed on the side of the precast beam 1 closest to the precast floor slab 2. The insertion block 31 is integrally formed on the side of the precast floor slab 2 closest to the precast beam 1 and is disposed within the reinforcing groove 13. A reverse insertion hole 311 is formed on the side of the insertion block 31 furthest from the precast floor slab 2. One end of the reverse insertion rod 32 is fixed to the bottom of the reinforcing groove 13, and the other end is disposed within the reverse insertion hole 311. The insertion block and the reverse insertion rod 32 are used to initially connect the precast beam 1 and the precast floor slab 2.

[0039] See Figure 3 In this embodiment, the snap-fit ​​part 4 is provided in two sets, which are located on the top and bottom walls of the insertion block 31, respectively. The snap-fit ​​part 4 includes a snap-fit ​​rod 41 and a snap-fit ​​spring 42. The inner wall of the reinforcing groove 13 is provided with a snap-fit ​​hole 14. One end of the snap-fit ​​rod 41 is disposed in the snap-fit ​​hole 14, and the other end is fixedly connected to the snap-fit ​​spring 42. The end of the snap-fit ​​spring 42 away from the snap-fit ​​rod 41 is connected to the insertion block 31. During assembly, the snap-fit ​​rod 41 is first aligned with the side closer to the insertion block 31. One side is pressed to allow the plug block 31 to be inserted into the reinforcing groove 13, and then the plug block 31 is inserted; during the insertion process, when the locking rod 41 is aligned with the locking spring 42, the locking rod 41 is pushed into the locking hole 14 by the elastic force of the locking spring 42, thereby completing the connection between the precast beam 1 and the precast floor slab 2, so as to increase the strength between the precast beam 1 and the precast floor slab 2, so that the connection is not only fixed by the pre-embedded bolts 11 and the locking nut 111.

[0040] See Figure 2 Furthermore, a grouting hole 16 is provided on the side of the precast beam 1 near the precast floor slab 2, and the grouting hole 16 is connected to the reinforcing groove 13. After the connection between the precast beam 1 and the precast floor slab 2 is completed, concrete can be injected into the reinforcing groove 13 through the grouting hole 16 to reinforce the precast beam 1 and the precast floor slab 2, thereby improving the strength between the precast beam 1 and the precast floor slab 2.

[0041] See Figure 2 Furthermore, pre-embedded reinforcing bars 12 are pre-installed within the precast beam 1, and are located within the reinforcing groove 13. Insertion holes 22 are provided on the side of the precast floor slab 2 closest to the precast beam 1. In this embodiment, the number of insertion holes 22 is the same as the number of pre-embedded reinforcing bars 12, and they correspond one-to-one. The end of the pre-embedded reinforcing bar 12 furthest from the bottom of the reinforcing groove 13 is placed within the insertion hole 22. After concrete is poured, the pre-embedded reinforcing bars 12 can further improve the connection strength between the precast beam 1 and the precast floor slab 2.

[0042] See Figure 1Furthermore, a support plate 15 is fixedly installed on the side of the precast beam 1 closest to the precast floor slab 2, and the support plate 15 is located below the precast floor slab 2. Multiple support springs 151 are fixedly installed on the top wall of the support plate 15. A support plate 152 is fixedly installed on the end of the support spring 151 away from the support plate 15, and the support plate 152 is fixedly connected to the bottom wall of the precast floor slab 2 by fixing bolts 153. The support spring 151 can support the precast floor slab 2, and when the precast floor slab 2 is subjected to vibration, the support spring 151 can buffer the vibration, so that the precast beam 1 and the precast floor slab 2 are not prone to breakage.

[0043] See Figure 1 and Figure 3 A bearing component 5 is provided between the snap-fit ​​spring 42 and the plug-in block 31, and a stabilizing component is provided between the snap-fit ​​rod 41 and the plug-in block 31. The bearing component includes an iron block 51 and a magnetic block 52. The top and bottom walls of the plug-in block are provided with a sliding groove 312 along the length direction. The magnetic block 52 is fixed on the inner wall of the sliding groove 312 away from the precast floor slab 2. The magnetic block 52 is used to attract the iron block 51.

[0044] See Figure 3 The iron block 51 is slidably connected to the slide groove 312 and slides along the length of the slide groove 312. A receiving hole 511 is provided on the side of the iron block 51 near the snap-fit ​​spring 42. The end of the snap-fit ​​rod 41 away from the snap-fit ​​hole 14 is located in the receiving hole 511, and the end of the snap-fit ​​spring 42 away from the snap-fit ​​rod 41 is fixed to the bottom of the receiving hole 511. Before the insertion block 31 is inserted into the reinforcing groove 13, the magnetic block 52 attracts the iron block 51, meaning the snap-fit ​​rod 41 is located at the end of the slide groove 312 away from the precast floor slab 2. The attraction of the magnetic block 52 to the iron block 51 ensures that when the insertion block 31 is inserted, before the snap-fit ​​rod 41 reaches the snap-fit ​​hole 14, the snap-fit ​​rod 41 is less likely to slide towards the side closer to the precast floor slab 2 due to contact with the inner wall of the reinforcing groove 13, thus keeping the snap-fit ​​rod 41 always at the end of the slide groove 312 away from the precast floor slab 2.

[0045] After the snap-fit ​​rod 41 is inserted into the snap-fit ​​hole 14, the plug block 31 continues to be inserted into the reinforcing groove 13. During this process, the stabilizing component will operate, thereby improving the stability of the snap-fit ​​rod 41 inserted into the snap-fit ​​hole 14, that is, further improving the connection strength between the precast beam 1 and the precast floor slab 2.

[0046] See Figure 3 The stabilizing components include: a driving part 8, a pressing part 7, and a stabilizing part 6.

[0047] See Figure 3The stabilizing part 6 includes: an iron sheet 61, a rotating plate 62, and a pressing plate 63. In this embodiment, the locking rod 41 is square, and a placement hole 411 is provided through the end wall of the locking rod 41. A stabilizing hole 141 is provided on the inner wall of the locking hole 14 near the bottom of the hole. In this embodiment, two iron sheets 61, rotating plates 62, and pressing plates 63 are provided in each set of stabilizing parts 6, and they correspond one to one. One end of the iron sheet 61 is fixed to the end wall of the locking rod 41 away from the locking spring 42, and the other end is bent in the stabilizing hole 141. The two iron sheets 61 are arranged opposite each other. In this embodiment, the thickness of the iron sheet 61 is set so that it can bend after pressure is applied.

[0048] See Figure 3 The rotating plate 62 is rotatably mounted on the inner wall of the placement hole 411, and the two rotating plates 62 are arranged opposite each other. The push plate 63 is fixed to the end of the rotating plate 62 away from the snap spring 42 and is located on the side of the rotating plate 62 close to the iron piece 61, and the push plate 63 abuts against the iron piece 61.

[0049] See Figure 3 The extrusion section 7 includes an extrusion column 71, a limiting rod 72, and a screw 73. The extrusion column 71 abuts against the rotating plate 62 and is located between the two rotating plates 62. A threaded hole 711 is provided on the end wall of the extrusion column 71 near the snap-fit ​​spring 42, and a limiting hole 712 is provided through the end wall of the extrusion column 71. The threaded hole 711 is located at the center of the extrusion column 71.

[0050] See Figure 3 The screw 73 is rotatably installed in the placement hole 411 and is vertically positioned. One end of the screw 73 is connected to the drive unit 8, and the other end is threaded into the threaded hole 711. One end of the limiting rod 72 is fixed to the bottom of the locking hole 14, and the other end passes through the limiting hole 712. The main function of the limiting rod 72 is to prevent the extrusion column 71 from rotating with the screw 73 when the screw 73 rotates, so that the extrusion column 71 can move linearly.

[0051] See Figure 3 The drive unit 8 includes a rack 81, a gear 82, and a square rod 83. A mounting groove 313 is formed at the bottom of the sliding groove 312 along its length. The rack 81 is fixed within the mounting groove 313 and arranged along its length. A square sliding hole 731 is formed on the end wall of the screw 73 away from the extrusion post 71. A clearance hole 512 is formed through the bottom of the receiving hole 511, and the diameter of the clearance hole 512 is smaller than the diameter of the receiving hole 511. The square rod 83 is rotatably mounted in the clearance hole 512 using a bearing, with one end of the square rod 83 slidingly disposed within the sliding hole 731 and the other end extending into the mounting groove 313.

[0052] See Figure 3One end of the square rod 83 located in the mounting groove 313 is fixed to the gear 82, and the gear 82 meshes with the rack 81. During the insertion of the snap-fit ​​rod 41 into the snap-fit ​​hole 14, the snap-fit ​​rod 41 will drive the screw 73 to move, that is, the square rod 83 will slide relatively in the sliding hole 731; and after the snap-fit ​​rod 41 is inserted into the snap-fit ​​hole 14, the iron block 51 will slide relatively in the sliding groove 312 toward the precast floor slab 2. During this process, the gear 82 will rotate, and the rotation of the gear 82 will drive the square rod 83 to drive the screw 73 to rotate; the rotation of the screw 73 will drive the extrusion column 71 to approach the bottom of the snap-fit ​​hole 14. At this time, the extrusion column 71 will extrude the end of the rotating plate 62 away from the snap-fit ​​spring 42, that is, the push plate 63 will extrude the iron sheet 61, so that the iron sheet 61 can be bent into the stabilizing hole 141, thereby making the snap-fit ​​rod 41 more stably inserted into the snap-fit ​​hole 14, so as to further improve the strength between the precast beam 1 and the precast floor slab 2.

[0053] The working principle of the dry connection structure between the prefabricated beam and the prefabricated floor slab of this application is as follows: During assembly, the snap-fit ​​rod 41 is first pressed towards the side close to the plug-in block 31 so that the plug-in block 31 can be inserted into the reinforcing groove 13. Then the plug-in block 31 is inserted. During the insertion process, when the snap-fit ​​rod 41 is aligned with the snap-fit ​​spring 42, the snap-fit ​​rod 41 is pushed into the snap-fit ​​hole 14 by the elastic force of the snap-fit ​​spring 42, thereby completing the connection between the prefabricated beam 1 and the prefabricated floor slab 2, so as to increase the strength between the prefabricated beam 1 and the prefabricated floor slab 2, so that the connection is not fixed by the pre-embedded bolts 11 and the locking nut 111 alone.

[0054] The above are all 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 dry connection structure for prefabricated beams and prefabricated floor slabs, characterized in that, include: A precast beam (1) and a precast floor slab (2) are provided. The precast beam (1) is provided with embedded bolts (11). The precast floor slab (2) is fixedly provided with a connecting plate (21). The connecting plate (21) is provided with a through hole. The embedded bolt passes through the connecting hole. The embedded bolt (11) is threaded with a locking nut (111). The locking nut (111) abuts against the connecting plate (21). A reinforcing component is provided between the precast beam (1) and the precast floor slab (2). The reinforcing component includes: a plug-in part (3) and a snap-fit ​​part (4). The plug-in part (3) is provided between the precast beam (1) and the precast floor slab (2). The snap-fit ​​part (4) is provided between the plug-in part (3) and the precast beam (1). The plug-in part (3) includes: a plug-in block (31) and a reverse plug rod (32). A reinforcing groove (13) is provided on the precast beam (1). The plug-in block (31) is fixed on the precast floor slab (2) and the plug-in block (31) is located in the reinforcing groove (13). A reverse plug hole (311) is provided on the plug-in block (31). One end of the reverse plug rod (32) is located in the reverse plug hole (311) and the other end is fixed to the bottom of the reinforcing groove (13). The snap-fit ​​part (4) is located between the plug-in block (31) and the precast beam (1). The snap-fit ​​part (4) includes a snap-fit ​​rod (41) and a snap-fit ​​spring (42). The inner wall of the reinforcing groove (13) is provided with a snap-fit ​​hole (14). One end of the snap-fit ​​spring (42) is connected to the plug block (31), and the other end is fixedly connected to the snap-fit ​​rod (41). The end of the snap-fit ​​rod (41) away from the snap-fit ​​spring (42) is disposed in the snap-fit ​​hole (14).

2. The dry connection structure between prefabricated beams and prefabricated floor slabs according to claim 1, characterized in that, A bearing component (5) is provided between the snap-fit ​​spring (42) and the plug-in block (31), and a stabilizing component is provided between the snap-fit ​​rod (41) and the plug-in block (31). The bearing component includes an iron block (51) and a magnetic block (52). A sliding groove (312) is provided on the plug-in block (31). The iron block (51) is slidably connected in the sliding groove (312). The magnetic block (52) is fixed in the sliding groove (312). A receiving hole (511) is provided on the iron block (51). One end of the snap-fit ​​rod (41) away from the snap-fit ​​hole (14) is provided in the receiving hole (511). One end of the snap-fit ​​spring (42) away from the snap-fit ​​rod (41) is fixed to the bottom of the receiving hole (511).

3. The dry connection structure between prefabricated beams and prefabricated floor slabs according to claim 2, characterized in that, The stabilizing component includes a driving part (8), a pressing part (7), and a stabilizing part (6). The stabilizing part (6) includes an iron sheet (61), a rotating plate (62), and a pressing plate (63). A placement hole (411) is provided through the snap-fit ​​rod (41). A stabilizing hole (141) is provided on the inner wall of the snap-fit ​​hole (14). One end of the iron sheet (61) is fixed to the snap-fit ​​rod (41), and the other end is disposed in the stabilizing hole (141). The rotating plate (62) is rotatably installed in the placement hole (411). One end of the pressing plate (63) is fixed to the rotating plate (62), and the other end is pressed against the iron sheet (61). The driving part (8) is disposed between the plug-in block and the iron block (51), and the pressing part (7) is disposed on the driving part (8).

4. The dry connection structure between prefabricated beams and prefabricated floor slabs according to claim 3, characterized in that, The extrusion part (7) includes an extrusion column (71), a limiting rod (72), and a screw (73). The extrusion column (71) abuts against the rotating plate (62), and the extrusion column (71) is provided with a threaded hole (711) and a limiting hole (712). The screw (73) is rotatably installed in the placement hole (411) and one end is connected to the driving part (8), and the other end is threaded into the threaded hole (711). One end of the limiting rod (72) is fixed to the inner wall of the snap-fit ​​hole (14), and the other end passes through the limiting hole (712).

5. The dry connection structure between prefabricated beams and prefabricated floor slabs according to claim 4, characterized in that, The drive unit (8) includes a rack (81), a gear (82), and a square rod (83). The bottom of the slide groove (312) is provided with a mounting groove (313). The rack (81) is fixed in the mounting groove (313). The screw (73) is provided with a sliding hole (731). The bottom of the receiving hole (511) is provided with a clearance hole (512). The square rod (83) is rotatably installed in the clearance hole (512) and one end slides in the sliding hole (731), while the other end extends into the mounting groove (313) and is fixed to the gear (82). The gear (82) meshes with the rack (81).

6. The dry connection structure between prefabricated beams and prefabricated floor slabs according to claim 1, characterized in that, The precast beam (1) is provided with grouting holes (16) that are connected to the reinforcing groove (13).

7. The dry connection structure between prefabricated beams and prefabricated floor slabs according to claim 6, characterized in that, The precast beam (1) has a pre-embedded steel bar (12) embedded in it, and the precast floor slab (2) has an insertion hole (22) provided on it. The end of the pre-embedded steel bar (12) away from the precast beam (1) is set in the insertion hole (22).

8. The dry connection structure between prefabricated beams and prefabricated floor slabs according to claim 1, characterized in that, The precast beam (1) has a support plate (15) fixedly installed on its side wall. The support plate (15) has a support spring (151) fixedly installed on its side wall. The support spring (151) has a support plate (152) fixedly installed on its side wall. The support plate (152) is fixed to the precast floor slab (2) by fixing bolts (153).

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