Energy-saving lightweight steel structure concrete prefabricated floor beam connecting structure

Abstract

The invention relates to the technical field of energy-saving and light-weight steel structure concrete prefabricated floor beam connection, and discloses an energy-saving and light-weight steel structure concrete prefabricated floor beam connection structure which comprises a prefabricated beam and a floor, the top of the prefabricated beam penetrates through and is fixedly connected with six embedded steel bars, every two embedded steel bars are arranged in a group, and the energy-saving and light-weight steel structure concrete prefabricated floor beam connection structure further comprises a connecting structure, the floor slab connecting mechanism comprises sleeves slidably connected to the outer walls of the top ends of the embedded steel bars, a transverse plate is fixedly connected between every two adjacent sleeves, and round holes formed in the floor slabs are in butt joint with the top ends of the embedded steel bars; the sleeves on the outer walls of the embedded steel bars move downwards along the outer walls of the embedded steel bars under the action of gravity generated by the floor, and the floor and the precast beam can be quickly mounted on site through matched butt joint of the embedded steel bars and the floor.

Description

Technical Field

[0001] The invention relates to the technical field of energy-saving and lightweight steel structure precast concrete floor beam connection, in particular to an energy-saving and lightweight steel structure precast concrete floor beam connection structure. Background Art

[0002] The floor slab is an important part of the overall building structure. It not only bears vertical loads, but also transfers horizontal loads generated by earthquakes and wind loads to the seismic resistance system. Traditional energy-saving and lightweight steel structure concrete floors show excellent mechanical properties, but a large number of workers are still required to carry out on-site formwork production, steel bar binding and concrete pouring during the construction process. There are problems such as cumbersome construction, large workload and low construction efficiency. In addition, with the shortage of labor, the labor cost required has greatly increased; large-scale on-site wet operations cause environmental pollution.

[0003] The existing floor slabs can be quickly installed on site during the process of docking and installation between two floor slabs and the fly ash prefabricated beams arranged in the middle. However, in this process, since one end of the two floor slabs is at the top of the prefabricated beam, the center of gravity of the two ends of the two floor slabs that are far away from each other will shift during the installation process, causing the end of the prefabricated steel bar on the top of the prefabricated beam to bend, affecting the installation quality of the prefabricated floor slab. Summary of the invention

[0004] The object of the present invention is to provide an energy-saving and lightweight steel structure prefabricated concrete floor beam connection structure to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions: The present invention is an energy-saving and lightweight steel structure concrete prefabricated floor beam connection structure, comprising a prefabricated beam and a floor slab, the top of the prefabricated beam is respectively penetrated and fixedly connected with six embedded steel bars, two embedded steel bars are arranged in a group, the top of the floor slab is respectively opened with six circular holes, the bottom of the floor slab is respectively opened with six clamping grooves, the bottom ends of the circular holes are connected with the top ends of the clamping grooves, and also includes a floor slab connection mechanism, the floor slab connection mechanism includes a sleeve slidably connected to the outer wall of the top end of the embedded steel bar, a cross plate is fixedly connected between two adjacent sleeves, one end of the cross plate penetrates the sleeve and is fixedly connected to one side of the inner wall of the sleeve, the top of the cross plate is fixedly connected with a bearing plate, the top outer wall of the bearing plate is arranged between the two floor slabs, and the bottom of the cross plate is provided with a stabilizing component.

[0006] Furthermore, the stabilizing component includes a square groove opened at the bottom of the horizontal plate, and sliders are slidably connected to the inner walls of the square groove at both ends, a first spring is fixedly connected between the two sliders, a rotating plate is rotatably connected to the bottom of the slider, and a concave shell is rotatably connected to the end of the rotating plate away from the slider.

[0007] Furthermore, three concave shells are provided, a connecting block is fixedly connected to a side of the slider away from the first spring, and an arc frame is fixedly connected to an end of the connecting block away from the slider.

[0008] Furthermore, a reinforcement component is provided on the side wall of the sleeve, and the reinforcement component includes a sliding rod penetrating through and slidably connected to both ends of one side of the sleeve, and one end of the sliding rod is fixedly connected to a semicircular plate.

[0009] Furthermore, the semicircular plate is arranged inside the sleeve, and a second spring is fixedly connected to one side of the semicircular plate close to the sliding rod, and one end of the second spring is fixedly connected to the inner wall of the sleeve.

[0010] Furthermore, a semicircular hole is opened on one side of the outer wall of the sleeve, and the outer wall of one end of the semicircular plate is slidably connected to the inner wall of the semicircular hole.

[0011] Furthermore, the side wall of the concave shell is provided with an auxiliary component, which includes an L-shaped rod fixedly connected to both sides of the concave shell, and a conical extrusion plate is fixedly connected to the top of one end of the L-shaped rod away from the concave shell, and the top end of the conical extrusion plate passes through the supporting plate and extends to the interior of the supporting plate.

[0012] Furthermore, the interior of the bearing plate is hollowed out, the inner walls on both sides of the bearing plate are slidably connected with sliding plates, a return spring is slidably connected between the two sliding plates, and the top end of the conical extrusion plate is arranged between the two sliding plates.

[0013] The present invention has the following beneficial effects: (1) The present invention connects the circular hole opened in the floor slab with the top of the embedded steel bar. When the two floor slabs fall along the outer wall of the embedded steel bar at the same time, the gravity generated by the floor slab causes the sleeve of the outer wall of the embedded steel bar to move downward along the outer wall of the embedded steel bar. Through the docking of the embedded steel bar and the floor slab, the floor slab and the prefabricated beam can be quickly installed on site. In this process, the sleeve will drive the cross plate to move downward. Because the cross plate is made of steel, it has high strength and rigidity. When the two floor slabs fall to the top of the prefabricated beam, the gravity generated by the two floor slabs will cause the center to shift toward both ends. Through the rigid setting of the cross plate, it can be prevented that the bottom ends of the two adjacent embedded steel bars are bent when the center of gravity of the floor slab shifts, thereby improving the stability of the floor slab and the prefabricated beam during installation and improving the quality of the finished product after installation.

[0014] (2) According to the present invention, when the horizontal plate moves downward, the horizontal plate drives the slider to move downward, the slider drives the rotating plate to move downward, the rotating plate drives the concave shell to move downward, and the concave shell will come into contact with the top of the precast beam during the downward movement of the concave shell, and will be reversely squeezed by the top of the precast beam, so that the rotating plate will rotate in a circle around the concave shell, and the rotating plate will drive the slider to slide along the inner wall of the square groove, the slider drives the connecting block to move, and the connecting block drives the arc frame to move, and the arc frame will come into contact with the side wall of the sleeve during the movement, thereby supporting and squeezing the two sleeves, further preventing the embedded steel bars of the sleeve from bending due to the center of gravity offset during the installation process, and improving the stability of the connection node between the floor slab and the precast beam.

[0015] (3) According to the present invention, when the arc frame moves, the arc frame will first contact the end of the sliding rod, so that the sliding rod slides inside the sleeve, and the sliding rod drives the semicircular plate to move. The semicircular plate slides along the inner wall of the semicircular hole and is limited by the positioning groove provided at the floor slab. When the semicircular plate moves to the inside of the positioning groove, the side wall of the semicircular plate will dock with the semicircular part of the inner wall of the positioning groove and squeeze the positioning groove, thereby supporting the two floor slabs, reducing the gravity that deviates to the two ends when the floor slab is installed, and improving the stability during installation. In addition, due to the setting of the bearing plate, the bearing plate is always between the two floor slabs when the floor slab and the prefabricated beam are quickly installed, and can resist the gap between the two floor slabs, further preventing the center of gravity of the two floor slabs from moving downward to the bottom of both sides.

[0016] (4) According to the present invention, when the concave shell contacts the top of the precast beam, the concave shell and the cross plate gradually approach each other, the concave shell is fixedly connected to the L-shaped rod, and the L-shaped rod is fixedly connected to the conical extrusion plate, so that the cross plate drives the bearing plate to move downward. During the downward movement of the bearing plate, the conical extrusion plate indirectly connected to the concave shell enters the interior of the bearing plate, and the conical top end of the conical extrusion plate contacts the two sliding plates sliding on the inner wall of the bearing plate, so that the two sliding plates move away from each other. During the movement of the sliding plate, the sliding plate contacts the side wall of the floor slab, further resisting the two floor slabs, further maintaining the center of gravity of the two floor slabs on the top of the precast beam, and improving the installation stability of the floor slab and the precast beam. After the installation is completed, the precast beam and the floor slab are grouted through the gap between the two floor slabs.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the overall top view structure of the present invention; Figure 2 It is a schematic diagram of the overall cross-sectional structure of the present invention; Figure 3 This is a bottom view of the structure of the clamping slot of the present invention; Figure 4 It is a schematic diagram of the cross-sectional structure of the load-bearing plate of the present invention; Figure 5 It is a schematic diagram of the structure of the sleeve of the present invention when viewed from above; Figure 6 For the present invention Figure 3 A magnified view of middle; Figure 7 For the present invention Figure 4 Enlarged view of middle B; Figure 8 For the present invention Figure 5 Enlarged view of C in the middle.

[0020] In the accompanying drawings, the components represented by the reference numerals are listed as follows: In the figure: 1. precast beam; 2. floor slab; 3. embedded steel bar; 4. round hole; 5. positioning groove; 6. floor slab connection mechanism; 61. sleeve; 62. cross plate; 63. load-bearing plate; 64. stabilizing component; 65. reinforcing component; 66. auxiliary component; 641. square groove; 642. slider; 643. first spring; 644. rotating plate; 645. concave shell; 646. connecting block; 647. arc frame; 651. sliding rod; 652. semicircular plate; 653. second spring; 654. semicircular hole; 662. L-shaped rod; 663. conical extrusion plate; 664. sliding plate; 665. return spring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Example 1, please refer to Figure 1 - Figure 8As shown, the present invention is an energy-saving and lightweight steel structure concrete prefabricated floor beam connection structure, including a prefabricated beam 1 and a floor slab 2, the prefabricated beam 1 is a fly ash lightweight building material, the floor slab 2 is made of clay bricks and tiles of energy-saving blocks, the top of the prefabricated beam 1 is penetrated and fixedly connected with six embedded steel bars 3, two embedded steel bars 3 are arranged in a group, the top of the floor slab 2 is respectively provided with six circular holes 4, the bottom of the floor slab 2 is respectively provided with six clamping grooves 5, the bottom end of the circular hole 4 is connected with the top end of the clamping groove 5, and also includes; The floor slab connection mechanism 6 includes a sleeve 61 slidably connected to the outer wall of the top of the embedded steel bar 3, and the circular hole 4 opened at the floor slab 2 is docked with the top of the embedded steel bar 3. When the two floor slabs 2 fall along the outer wall of the embedded steel bar 3 at the same time, the gravity generated by the floor slab 2 causes the sleeve 61 on the outer wall of the embedded steel bar 3 to move down along the outer wall of the embedded steel bar 3. Through the docking of the embedded steel bar 3 and the floor slab 2, the floor slab 2 and the prefabricated beam 1 can be quickly installed on site. A cross plate 62 is fixedly connected between two adjacent sleeves 61, and one end of the cross plate 62 passes through the sleeve 61 and is fixedly connected to one side of the inner wall of the sleeve 61. The top of the cross plate 62 is fixedly connected to a bearing plate 63, and the top outer wall of the bearing plate 63 is arranged between the two floor slabs 2. The sleeve 61 will drive the cross plate 62 to move downward. Because the cross plate 62 is made of steel, it has high strength and rigidity. When the two floor slabs 2 fall to the top of the precast beam 1, the gravity generated by the two floor slabs 2 will cause the center to shift to both ends. The rigid setting of the cross plate 62 can prevent the bottom ends of the two adjacent embedded steel bars 3 from bending when the center of gravity of the floor slab 2 shifts, thereby improving the stability of the floor slab 2 and the precast beam 1 during installation and improving the quality of the finished product after installation. A stabilizing component 64 is provided at the bottom of the cross plate 62.

[0023] The stabilizing assembly 64 includes a square groove 641 opened at the bottom of the horizontal plate 62, and sliders 642 are slidably connected to the inner walls of the square groove 641 at both ends, and a first spring 643 is fixedly connected between the two sliders 642. The bottom of the slider 642 is rotatably connected to a rotating plate 644, and the end of the rotating plate 644 away from the slider 642 is rotatably connected to a concave shell 645.

[0024] There are three concave shells 645. A connecting block 646 is fixedly connected to one side of the slider 642 away from the first spring 643. An arc frame 647 is fixedly connected to one end of the connecting block 646 away from the slider 642. When the horizontal plate 62 moves downward, the horizontal plate 62 drives the slider 642 to move downward, the slider 642 drives the rotating plate 644 to move downward, and the rotating plate 644 drives the concave shell 645 to move downward. During the downward movement of the concave shell 645, it will come into contact with the top of the precast beam 1 and be reversely squeezed by the top of the precast beam 1, so that the rotating plate 644 The rotating plate 644 drives the slider 642 to slide along the inner wall of the square groove 641 by rotating around the concave shell 645, and the slider 642 drives the connecting block 646 to move, and the connecting block 646 drives the arc frame 647 to move. The arc frame 647 will contact the side wall of the sleeve 61 during the movement, thereby supporting and squeezing the two sleeves 61, further preventing the embedded steel bars 3 set in the sleeve 61 from bending due to the center of gravity offset during the installation process, thereby improving the stability of the connection node between the floor slab 2 and the precast beam 1.

[0025] In Embodiment 2, a reinforcing assembly 65 is disposed on the side wall of the sleeve 61 . The reinforcing assembly 65 includes a sliding rod 651 penetrating through and slidably connected to both ends of one side of the sleeve 61 . A semicircular plate 652 is fixedly connected to one end of the sliding rod 651 .

[0026] The semicircular plate 652 is arranged inside the sleeve 61, and a second spring 653 is fixedly connected to one side of the semicircular plate 652 close to the sliding rod 651. One end of the second spring 653 is fixedly connected to the inner wall of the sleeve 61. Due to the setting of the bearing plate 63, the bearing plate 63 is always between the two floor slabs 2 when the floor slab 2 and the prefabricated beam 1 are quickly installed. It can resist the gap between the two floor slabs 2 and further prevent the center of gravity of the two floor slabs 2 from moving downward to the bottom of both sides.

[0027] A semicircular hole 654 is provided on one side of the outer wall of the sleeve 61, and the outer wall of one end of the semicircular plate 652 is slidably connected to the inner wall of the semicircular hole 654. When the arc frame 647 moves, the arc frame 647 will first contact the end of the sliding rod 651, so that the sliding rod 651 slides inside the sleeve 61, and the sliding rod 651 drives the semicircular plate 652 to move. The semicircular plate 652 slides along the inner wall of the semicircular hole 654 and is affected by the locking groove 5 provided on the floor 2. When the semicircular plate 652 moves to the inside of the locking groove 5, the side wall of the semicircular plate 652 will dock with the semicircular part of the inner wall of the locking groove 5, and squeeze the locking groove 5, thereby supporting the two floor slabs 2, reducing the gravity that deviates to both ends when the floor slab 2 is installed, and improving the stability during installation from the side.

[0028] The side wall of the concave shell 645 is provided with an auxiliary component 66, which includes an L-shaped rod 662 fixedly connected to both sides of the concave shell 645, and the top of the L-shaped rod 662 away from the concave shell 645 is fixedly connected with a conical extrusion plate 663, and the top of the conical extrusion plate 663 passes through the supporting plate 63 and extends to the interior of the supporting plate 63.

[0029] The interior of the bearing plate 63 is hollowed out, and the inner walls on both sides of the bearing plate 63 are slidably connected with sliding plates 664, and a return spring 665 is slidably connected between the two sliding plates 664. The top of the conical extrusion plate 663 is set between the two sliding plates 664. When the concave shell 645 contacts the top of the precast beam 1, the concave shell 645 and the cross plate 62 gradually approach each other, and the concave shell 645 is fixedly connected to the L-shaped rod 662, and the L-shaped rod 662 is fixedly connected to the conical extrusion plate 663, so that the cross plate 62 will drive the bearing plate 63 to move downward, and the bearing plate 63 will be connected to the concave shell 645 during the downward movement. The connected conical extrusion plate 663 enters the interior of the bearing plate 63, and the conical top end of the conical extrusion plate 663 will come into contact with the two sliding plates 664 sliding on the inner wall of the bearing plate 63, so that the two sliding plates 664 move away from each other. During the movement of the sliding plate 664, it will come into contact with the side wall of the floor 2, further resisting the two floor slabs 2, further maintaining the center of gravity of the two floor slabs 2 on the top of the precast beam 1, and laterally improving the installation stability of the floor slab 2 and the precast beam 1. When the installation is completed, the precast beam 1 and the floor slab 2 are grouted through the gap between the two floor slabs 2.

[0030] When in use, the circular hole 4 opened in the floor slab 2 is connected with the top end of the embedded steel bar 3. When the two floor slabs 2 fall along the outer wall of the embedded steel bar 3 at the same time, the gravity generated by the floor slab 2 causes the sleeve 61 of the outer wall of the embedded steel bar 3 to move downward along the outer wall of the embedded steel bar 3. Through the docking of the embedded steel bar 3 and the floor slab 2, the floor slab 2 and the precast beam 1 can be quickly installed on site. In this process, the sleeve 61 will drive the cross plate 62 to move downward. Because the material of the cross plate 62 is steel, it has high strength and rigidity. When the two floor slabs 2 fall to the top of the precast beam 1, the gravity generated by the two floor slabs 2 will cause the center to shift toward both ends. The rigid setting of the cross plate 62 can prevent the bottom ends of the two adjacent embedded steel bars 3 from bending when the center of gravity of the floor slab 2 shifts, thereby improving the stability of the floor slab 2 and the precast beam 1 during installation and improving the quality of the finished product after installation.

[0031] When the cross plate 62 moves downward, the cross plate 62 drives the slider 642 to move downward, the slider 642 drives the rotating plate 644 to move downward, and the rotating plate 644 drives the concave shell 645 to move downward. During the downward movement of the concave shell 645, it will come into contact with the top of the precast beam 1, and will be reversely squeezed by the top of the precast beam 1, so that the rotating plate 644 will rotate in a circle around the concave shell 645, and the rotating plate 644 drives the slider 642 to slide along the inner wall of the square groove 641, and the slider 642 drives the connecting block 646 to move, and the connecting block 646 drives the arc frame 647 to move. During the movement of the arc frame 647, it will come into contact with the side wall of the sleeve 61, thereby supporting and squeezing the two sleeves 61, further preventing the embedded steel bars 3 set in the sleeve 61 from bending due to the offset of the center of gravity during the installation process, thereby improving the stability of the connection node between the floor slab 2 and the precast beam 1.

[0032] When the arc frame 647 moves, the arc frame 647 will first contact the end of the sliding rod 651, so that the sliding rod 651 slides inside the sleeve 61, and the sliding rod 651 drives the semicircular plate 652 to move. The semicircular plate 652 slides along the inner wall of the semicircular hole 654 and is limited by the locking groove 5 opened at the floor slab 2. When the semicircular plate 652 moves to the inside of the locking groove 5, the side wall of the semicircular plate 652 will dock with the semicircular part of the inner wall of the locking groove 5 and squeeze the locking groove 5, thereby supporting the two floor slabs 2, reducing the gravity that deviates toward the two ends when the floor slab 2 is installed, and the side improves the stability during installation. In addition, due to the setting of the bearing plate 63, the bearing plate 63 is always between the two floor slabs 2 when the floor slab 2 and the precast beam 1 are quickly installed, and can resist the gap between the two floor slabs 2, further preventing the center of gravity of the two floor slabs 2 from moving downward to the bottom of both sides.

[0033] When the concave shell 645 comes into contact with the top of the precast beam 1, the concave shell 645 and the cross plate 62 gradually approach each other, and the concave shell 645 is fixedly connected to the L-shaped rod 662, and the L-shaped rod 662 is fixedly connected to the conical extrusion plate 663, so that the cross plate 62 will drive the bearing plate 63 to move downward. During the downward movement of the bearing plate 63, the conical extrusion plate 663 indirectly connected to the concave shell 645 will enter the interior of the bearing plate 63, and the conical top end of the conical extrusion plate 663 will come into contact with the two sliding plates 664 sliding on the inner wall of the bearing plate 63, so that the two sliding plates 664 move away from each other. During the movement of the sliding plate 664, it will come into contact with the side wall of the floor 2, further resisting the two floor slabs 2, further maintaining the center of gravity of the two floor slabs 2 on the top of the precast beam 1, and improving the installation stability of the floor slab 2 and the precast beam 1 from the side. After the installation is completed, the precast beam 1 and the floor slab 2 are grouted through the gap between the two floor slabs 2.

[0034] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An energy-saving and lightweight steel structure prefabricated concrete floor beam connection structure, characterized in that: The invention comprises a prefabricated beam (1) and a floor slab (2), wherein six embedded steel bars (3) are respectively passed through and fixedly connected to the top of the prefabricated beam (1), and two embedded steel bars (3) are arranged in a group, and six circular holes (4) are respectively opened on the top of the floor slab (2), and six positioning grooves (5) are respectively opened on the bottom of the floor slab (2), and the bottom ends of the circular holes (4) are connected to the top ends of the positioning grooves (5), and further comprises: A floor slab connection mechanism (6), the floor slab connection mechanism (6) comprising a sleeve (61) slidably connected to the outer wall of the top end of the embedded steel bar (3), a transverse plate (62) fixedly connected between two adjacent sleeves (61), one end of the transverse plate (62) passing through the sleeve (61) and fixedly connected to one side of the inner wall of the sleeve (61), a bearing plate (63) fixedly connected to the top of the transverse plate (62), the outer wall of the top end of the bearing plate (63) being arranged between the two floor slabs (2), and a stabilizing component (64) being arranged at the bottom of the transverse plate (62); The stabilizing component (64) comprises a square groove (641) formed at the bottom of the horizontal plate (62); two ends of the inner wall of the square groove (641) are slidably connected to sliders (642); a first spring (643) is fixedly connected between the two sliders (642); a rotating plate (644) is rotatably connected to the bottom of the slider (642); and a concave shell (645) is rotatably connected to one end of the rotating plate (644) away from the slider (642); Three concave shells (645) are provided, a side of the slider (642) away from the first spring (643) is fixedly connected to a connecting block (646), and an end of the connecting block (646) away from the slider (642) is fixedly connected to an arc frame (647); The side wall of the sleeve (61) is provided with a reinforcement component (65), and the reinforcement component (65) comprises a sliding rod (651) penetrating through and slidably connected to both ends of one side of the sleeve (61), and one end of the sliding rod (651) is fixedly connected to a semicircular plate (652).

2. The energy-saving and lightweight steel structure prefabricated concrete floor beam connection structure according to claim 1 is characterized in that: The semicircular plate (652) is arranged inside the sleeve (61), and a second spring (653) is fixedly connected to one side of the semicircular plate (652) close to the sliding rod (651), and one end of the second spring (653) is fixedly connected to the inner wall of the sleeve (61).

3. The energy-saving and lightweight steel structure concrete prefabricated floor beam connection structure according to claim 2 is characterized in that: A semicircular hole (654) is provided on one side of the outer wall of the sleeve (61), and the outer wall of one end of the semicircular plate (652) is slidably connected to the inner wall of the semicircular hole (654).

4. The energy-saving and lightweight steel structure concrete prefabricated floor beam connection structure according to claim 3 is characterized by: The side wall of the concave shell (645) is provided with an auxiliary component (66), and the auxiliary component (66) comprises an L-shaped rod (662) fixedly connected to both sides of the concave shell (645), and a conical extrusion plate (663) is fixedly connected to the top of one end of the L-shaped rod (662) away from the concave shell (645), and the top end of the conical extrusion plate (663) passes through the supporting plate (63) and extends to the inside of the supporting plate (63).

5. The energy-saving and lightweight steel structure prefabricated concrete floor beam connection structure according to claim 4 is characterized in that: The interior of the bearing plate (63) is hollowed out, and sliding plates (664) are slidably connected to inner walls on both sides of the bearing plate (63), and a return spring (665) is slidably connected between the two sliding plates (664). The top end of the conical extrusion plate (663) is arranged between the two sliding plates (664).

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