Fabricated building steel frame structure

Abstract

The utility model relates to the technical field of assembly type buildings, and discloses an assembly type building steel frame structure which comprises a connecting piece, connecting grooves are formed in the top and the periphery of the connecting piece, vertical rods are connected in the connecting grooves in the top of the connecting piece, and transverse rods are connected in the connecting grooves in the periphery of the connecting piece. The end, close to the connecting piece, of the transverse rod is connected with a vertical inserting plate in a sliding mode. According to the fabricated building steel frame structure, only a small number of bolts are used among all the components of the steel structure, and the bolts only play a role in limiting and do not play a role in connecting and fixing, so that even if the bolts loosen slightly, the connection among the steel structures cannot be influenced, and the steel structure can be connected more stably.

Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated buildings, and specifically relates to a steel frame structure for prefabricated buildings. Background Art

[0002] The steel frame structure of a prefabricated building is a modern building method, in which each component of the steel structure, including columns, beams, trusses and other members, is prefabricated in a factory and then transported to the construction site for assembly.

[0003] As in the prior art, a patent with the patent authorization announcement number CN218116746U discloses a steel frame structure for prefabricated buildings, including an installation fixing block and a pulling fixing arm rod. The pulling fixing arm rod is installed and fixed at the middle position of the lower end of the installation fixing block. A fixing sleeve cover is arranged at the lower end of the pulling fixing arm rod. Arm rod sleeve blocks are arranged on the peripheral side of the fixing sleeve cover. An external steel frame arm rod is arranged inside the arm rod sleeve blocks. Locking screws are fixedly arranged at the upper ends of the arm rod sleeve blocks and the external steel frame arm rod. A limiting shaft bolt rod is arranged in the middle of the inside of the arm rod sleeve blocks and the external steel frame arm rod. This kind of steel frame structure for prefabricated buildings has the technical effect of limiting and fixing to prevent loosening and falling off.

[0004] Although the steel frame structure of the prefabricated building in the above patent has the technical effect of limiting and fixing to prevent loosening and falling off, this steel frame structure of the prefabricated building has certain defects; since all the steel structures of this prefabricated building steel structure are connected and fixed by bolts, during long-term use, the bolts are very easy to loosen due to various reasons (such as vibration, thermal expansion and contraction or metal fatigue, etc.), making the connection between the steel structures unstable, and further affecting the overall stability of the prefabricated building steel structure. Therefore, this prefabricated building steel structure needs to be improved. Summary of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a steel frame structure for prefabricated buildings to solve the problems raised in the background art and make the connection between the components of the steel structure more stable and convenient.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: A steel frame structure for prefabricated buildings includes a connecting piece. Connecting grooves are opened at the top and around the connecting piece. A vertical rod is connected in the connecting groove at the top of the connecting piece, and a horizontal rod is connected in the connecting groove around the connecting piece. A transverse insertion plate is slidably connected to the lower end of the vertical rod, and a vertical insertion plate is slidably connected to one end of the horizontal rod close to the connecting piece.

[0007] Further, a positioning plate is fixedly connected to one side of the upper end of the connecting piece. One end of the transverse insertion plate passes through the connecting piece and the vertical rod and fits with the positioning plate. The transverse insertion plate and the positioning plate are connected and fixed by a limiting bolt.

[0008] Furthermore, the lower end of the vertical insertion plate penetrates through the connecting member and the cross bar and extends to the bottom of the connecting member. A connecting plate is rotatably connected to the bottom of the connecting member. A positioning block is fixedly connected to the side wall of the connecting plate, and the positioning block is slidably connected to the vertical insertion plate.

[0009] Furthermore, a limiting groove is formed in the bottom of the connecting member, and a limiting ring is rotatably connected inside the limiting groove. The bottom of the limiting ring is fixedly connected to the connecting plate.

[0010] Furthermore, a threaded rod is fixedly connected to the central position of the bottom of the connecting member. The lower end of the threaded rod penetrates through the connecting plate and extends to the bottom of the connecting plate. A nut is threadedly connected to the lower end of the threaded rod.

[0011] Furthermore, a limiting insertion block is sleeved on the lower end of the threaded rod. The limiting insertion block is located between the nut and the connecting plate. An insertion foot is fixedly connected to the top of the limiting insertion block. Insertion holes matching the insertion foot are formed in both the connecting member and the connecting plate.

[0012] Compared with the prior art, the present utility model has the following beneficial effects:

[0013] For this kind of prefabricated building steel frame structure, since only a small number of bolts are used between the components of the steel structure, and the bolts only play a limiting role and do not play a role in connecting and fixing, even if the bolts are slightly loose, it will not affect the connection between the steel structures. Therefore, the connection of the steel structure will be more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the whole of the present utility model;

[0015] Figure 2 is a bottom view of the whole of the present utility model;

[0016] Figure 3 is a schematic structural diagram of the whole of the present utility model when unfolded;

[0017] Figure 4 is a bottom view of the connecting member of the present utility model.

[0018] In the figure: 1, connecting member; 2, connecting groove; 3, cross bar; 4, vertical bar; 5, positioning plate; 6, vertical insertion plate; 7, horizontal insertion plate; 8, limiting bolt; 9, limiting groove; 10, threaded rod; 11, limiting ring; 12, connecting plate; 13, positioning block; 14, limiting insertion block; 15, nut. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0020] Please refer to Figures 1-4 , a prefabricated building steel frame structure, including a connecting piece 1. Connecting grooves 2 are provided at the top and around the connecting piece 1. A vertical rod 4 is connected in the connecting groove 2 at the top of the connecting piece 1, and a cross rod 3 is connected in the connecting groove 2 around the connecting piece 1. The lower end of the vertical rod 4 is slidably connected with a horizontal insertion plate 7, and one end of the cross rod 3 close to the connecting piece 1 is slidably connected with a vertical insertion plate 6.

[0021] In the prefabricated building steel frame structure of the present utility model, the vertical rod 4 is connected and fixed to the connecting piece 1 through the horizontal insertion plate 7, and the cross rod 3 is connected and fixed to the connecting piece 1 through the vertical insertion plate 6. Since only a small number of bolts are used between the components of this steel structure, and even if bolts are used, these bolts only play a limiting effect and do not play a role in connecting and fixing. Therefore, even if the bolts are slightly loosened, it will not affect the connection between the steel structures. Therefore, the connection of this steel structure will be more stable.

[0022] As Figure 1 and Figure 3 shown, a positioning plate 5 is fixedly connected to one side of the upper end of the connecting piece 1. One end of the horizontal insertion plate 7 passes through the connecting piece 1 and the vertical rod 4 and fits with the positioning plate 5. The horizontal insertion plate 7 and the positioning plate 5 are connected and fixed through a limit bolt 8.

[0023] Specifically, after the horizontal insertion plate 7 is inserted into the connecting piece 1 and the vertical rod 4, it can be restricted and fixed by the limit bolt 8 to prevent the horizontal insertion plate 7 from detaching from the connecting piece 1. At the same time, this limit bolt 8 only plays a limiting role. Even if the limit bolt 8 is loosened, the horizontal insertion plate 7 cannot be displaced. Therefore, the connection of the vertical rod 4 will be closer.

[0024] As Figure 2 , Figure 3 and Figure 4 shown, the lower end of the vertical insertion plate 6 passes through the connecting piece 1 and the cross rod 3 and extends to the bottom of the connecting piece 1. A connecting plate 12 is rotatably connected to the bottom of the connecting piece 1, and a positioning block 13 is fixedly connected to the side wall of the connecting plate 12. The positioning block 13 is slidably connected with the vertical insertion plate 6.

[0025] Specifically, after the vertical insertion plate 6 is inserted into the connecting piece 1 and the cross rod 3, the connecting plate 12 can be rotated to insert the positioning block 13 into the vertical insertion plate 6, thereby restricting the vertical insertion plate 6 to prevent the vertical insertion plate 6 from detaching from the connecting piece 1.

[0026] As Figure 4 shown, a limit groove 9 is provided at the bottom of the connecting piece 1, and a limit ring 11 is rotatably connected inside the limit groove 9. The bottom of the limit ring 11 is fixedly connected to the connecting plate 12.

[0027] Specifically, the connecting plate 12 is restricted by the limiting ring 11, so that the connecting plate 12 is more tightly connected to the connecting member 1.

[0028] As Figure 4 shown, a threaded rod 10 is fixedly connected to the central position of the bottom of the connecting member 1. The lower end of the threaded rod 10 penetrates through the connecting plate 12 and extends to the bottom of the connecting plate 12. A nut 15 is threadedly connected to the lower end of the threaded rod 10.

[0029] Specifically, after rotating the connecting plate 12 to insert the positioning block 13 into the vertical insertion plate 6, the nut 15 can be tightened, so as to restrict the connecting plate 12 and prevent the connecting plate 12 from rotating by itself, resulting in the loss of restriction on the vertical insertion plate 6.

[0030] As Figure 4 shown, a limiting insertion block 14 is sleeved on the lower end of the threaded rod 10. The limiting insertion block 14 is located between the nut 15 and the connecting plate 12. A plug foot is fixedly connected to the top of the limiting insertion block 14. Jacks matching the plug foot are provided on both the connecting member 1 and the connecting plate 12.

[0031] Specifically, before tightening the nut 15, the plug foot on the limiting insertion block 14 can be inserted into the jacks on the connecting member 1 and the connecting plate 12, and the connecting plate 12 is restricted by the limiting insertion block 14, so that even if the nut 15 becomes loose, the limiting insertion block 14 will still play a limiting role.

[0032] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention.

Claims

1. An assembled building steel frame structure, characterized in that: The invention comprises a connecting member (1), wherein connecting grooves (2) are provided at the top and around the connecting member (1), a vertical rod (4) is connected to the connecting groove (2) at the top of the connecting member (1), a horizontal rod (3) is connected to the connecting grooves (2) around the connecting member (1), a horizontal plug plate (7) is slidably connected to the lower end of the vertical rod (4), and a vertical plug plate (6) is slidably connected to the end of the horizontal rod (3) close to the connecting member (1).

2. The assembled building steel frame structure according to claim 1, characterized in that: A positioning plate (5) is fixedly connected to one side of the upper end of the connecting member (1), one end of the transverse plug plate (7) passes through the connecting member (1) and the vertical rod (4) and fits with the positioning plate (5), and the transverse plug plate (7) and the positioning plate (5) are connected and fixed by a limiting bolt (8).

3. The assembled building steel frame structure according to claim 1, characterized in that: The lower end of the vertical plug plate (6) passes through the connecting member (1) and the cross bar (3) and extends to the bottom of the connecting member (1). The bottom of the connecting member (1) is rotatably connected to a connecting plate (12). A positioning block (13) is fixedly connected to the side wall of the connecting plate (12). The positioning block (13) is slidably connected to the vertical plug plate (6).

4. The assembled building steel frame structure according to claim 3, characterized in that: The bottom of the connecting member (1) is provided with a limiting groove (9), the interior of the limiting groove (9) is rotatably connected to a limiting ring (11), and the bottom of the limiting ring (11) is fixedly connected to the connecting plate (12).

5. The assembled building steel frame structure according to claim 3, characterized in that: A threaded rod (10) is fixedly connected to the center position of the bottom of the connecting member (1), the lower end of the threaded rod (10) passes through the connecting plate (12) and extends to the bottom of the connecting plate (12), and the lower end of the threaded rod (10) is threadedly connected to a nut (15).

6. The assembled building steel frame structure according to claim 5, characterized in that: The lower end of the threaded rod (10) is sleeved with a limit plug (14), the limit plug (14) is located between the nut (15) and the connecting plate (12), a plug pin is fixedly connected to the top of the limit plug (14), and a plug hole matching the plug pin is provided on the connecting piece (1) and the connecting plate (12).

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