Reset self-locking column-column connecting joint for MiC building

Abstract

The invention provides a reset self-locking column-column connection node for an MiC building, which comprises an upper column bottom plate, a sliding rod, a sliding rod guide rail, a connection buckle, a reset spring, a connector and a lower column top plate, and can be used for quickly, accurately and reliably connecting modules in the MiC building. The limitation on the aspects of installation, operation, reliable connection and sustainable development in the prior art is overcome, and a new technical solution is brought to the field of MiC buildings.

Description

Technical Field

[0001] The invention relates to modular integrated buildings. Background Art

[0002] Modular Integrated Construction (MiC) relies on reliable connection technology. However, the existing connection technology is still traditional. During the installation process, manual adjustment and positioning are required, and traditional bolt connection methods are generally used. This consumes a lot of resources, is difficult to construct, and has a long operation cycle. It is difficult to truly give full play to the advantages of modular buildings in terms of high industrialization, standardization, and flexibility. Therefore, it is necessary to reasonably optimize and design the connection nodes. The existing technology mainly has the following problems: The installation process is complicated: most of the components of modular buildings are prefabricated in factories and installed on site. During the installation process, the connection needs to be manually aligned, manually adjusted and positioned, and manually aligned and tightened. Excessive manual intervention not only leads to low efficiency and time-consuming hoisting installation, but also increases the risk of loose connections or inaccurate positioning.

[0003] Long construction time: The connection devices in modular buildings are mostly bolted, and the time for on-site installation and adjustment often occupies most of the on-site construction cycle. Although the use of prefabricated components has increased the construction speed to a certain extent, the construction of on-site connection devices is still time-consuming and laborious. Accurate docking and rapid positioning of the connection are the key to improving efficiency.

[0004] Insufficient flexibility and disassembly: In existing modular building connection systems, many connection designs lack the necessary flexibility and disassembly. Fixed connection methods are not conducive to the reconfiguration or replacement of modules, limiting the adaptability and sustainability of buildings, especially in scenarios that require building reconstruction, expansion or future renovation. In addition, fixed connection methods may cause structural damage or require more complex deconstruction methods during disassembly, thereby increasing disassembly costs and time and reducing the reuse rate of building materials.

[0005] Insufficient stress-bearing performance: The connection nodes of existing modular buildings also have certain defects in stress-bearing performance, such as: the connection is hinged and difficult to transmit bending moment, the connection bearing capacity is low and only suitable for low-rise buildings, and the existence of a strong column and weak beam system is not conducive to structural safety. Summary of the invention

[0006] The object of the present invention is to provide a reset self-locking column-column connection node for MiC buildings, characterized in that it includes a snap-on structure arranged on the bottom plate of the upper column and a connector connected to the top plate of the lower column.

[0007] The buckle structure includes four buckle supports distributed around the central circular hole of the upper column bottom plate. Each buckle support has a groove body for accommodating a connecting buckle on the side facing the central circular hole. Both sides of the groove body have guide grooves. The connecting buckle has a vertical strip groove running through both sides. One connecting buckle is configured with a sliding rod. After the sliding rod passes through the strip groove of the connecting buckle, the two ends pass through the strip grooves on both sides of the connecting buckle respectively. Adjacent sliding rods are connected by reset springs, so that the four sliding rods and the four reset springs form an octagonal structure. The part of the connecting buckle facing the central circular hole is a rising wedge of a wedge-shaped lock tongue structure.

[0008] The connector is composed of a mushroom-shaped connector, a connecting rod I, a limit plate, and a connecting rod II from top to bottom. An annular groove is formed between the mushroom-shaped connector and the limit plate. The connecting rod II is connected to the top plate of the lower column below.

[0009] In the initial state, under the action of the reset tension spring, the sliding rod pushes the wedge-shaped lock tongue structure of the connecting buckle to above the central circular hole.

[0010] When the upper and lower columns are assembled, the connector is inserted into the center circular hole, and the mushroom-shaped connector pushes the connecting buckle, so that the sliding rod moves along the curved guide groove to the bending part of the guide groove. When the mushroom-shaped connector moves to the top of the connecting buckle, the sliding rod bends through the guide groove under the tension of the reset spring, so that the wedge-shaped lock tongue of the connecting buckle rebounds, thereby limiting the lower end of the mushroom-shaped connector.

[0011] Furthermore, the connecting rod II is in the shape of a square column, and the top surface of the lower column top plate is provided with a square hole that matches the connecting rod II. The lower end of the square hole has a square sleeve, and after the connecting rod II is inserted into the square sleeve, it is connected to the lower column top plate by bolts.

[0012] Furthermore, a shear plate is provided between the upper column bottom plate and the lower column top plate. The shear plate is provided with a through hole for the connector to pass through.

[0013] The technical effects of the present invention are unquestionable: 1) The connection node greatly reduces the need for manual intervention. The traditional connection method relies on experienced technicians to perform manual precision operations. However, this patent simplifies the operation and reduces the number of personnel through the auxiliary positioning sliding mechanism of the hemispherical connector and the ingenious automatic reset and self-locking mechanical design, while also reducing the occurrence of human errors and reducing labor costs.

[0014] 2) The connection node improves installation accuracy and efficiency. Previous technologies may require multiple adjustments to ensure accurate alignment of the connection nodes, which is a cumbersome, time-consuming and labor-intensive process. This patent uses preset guide rails and reset springs to achieve functions such as positioning and guiding, automatic connection, automatic reset and self-locking, and complete accurate positioning, rapid limiting and firm connection of the connection.

[0015] 3) The connection node enhances the reliability of the connection. The existing connection devices are sometimes difficult to ensure the stability of the connection when facing external impact or long-term load. The self-locking mechanism of this patent ensures that once the connection device is in place, it can remain stable even under the action of external forces, increasing the overall safety of the building and reducing the risk of accidental detachment.

[0016] 4) The connection nodes improve the convenience of disassembly and reinstallation of modular buildings. When a building needs to be repaired, reconstructed, expanded or renovated, the traditional connection system often requires a complicated disassembly process and may cause damage to the connection. The reset self-locking connection device of this patent can achieve rapid disassembly with a simple reverse operation, which not only protects the connection parts, but also provides conditions for rapid iteration and flexible use of the building. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the patent of the present invention; Figure 2 This is a schematic diagram of the structure of the patent of this invention (including shear plate); Figure 3 Schematic diagram of buckle structure; Figure 4 Schematic diagram of the connection buckle; Figure 5 This is a physical diagram of the present invention.

[0018] In the figure: an upper column bottom plate (1), a sliding rod (2), a buckle support (3), a guide groove (301), a horizontal section (3011), an inclined section (3012), an arc section (3013), a protrusion (3014) I, a protrusion II (3015), a connecting buckle (4), a strip groove (401), a wedge-shaped lock head (402), a rectangular block (403), a reset spring (5), a connector (6), a mushroom-shaped connector (601), a connecting rod I (602), a limit plate (603), a connecting rod II (604), a connecting hole I (605), a lower column top plate (7), a top surface (701), a connecting seat (702), a connecting hole II (703), and a shear plate (8). DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with the embodiments, but it should not be understood that the above subject matter of the present invention is limited to the following embodiments. Without departing from the above technical ideas of the present invention, various substitutions and changes are made according to the common technical knowledge and customary means in the art, which should all be included in the protection scope of the present invention.

[0021] Embodiment 1: See also Figure 1 A reset self-locking column-column connection node for MiC buildings, characterized by: comprising a buckle structure arranged on the upper column bottom plate 1 and a connector 6 connected to the lower column top plate 7; the upper column and the lower column are round columns or square columns, and their upper and lower end surfaces are the top plate and the bottom plate. During assembly, the upper column and the lower column need to be connected together, that is, they can be butted up and down through four buckle structures and the connector 6.

[0022] See also Figure 1 and Figure 2 The buckle structure includes four buckle supports 3 distributed around the central circular hole 101 of the upper column bottom plate 1; each buckle support 3 has a groove for accommodating the connecting buckle 4 on the side facing the central circular hole 101. As shown in the figure, the buckle support 3 has two approximately parallel rectangular plates, and the groove is the part between the two rectangular plates; the two sides of the groove have guide grooves 301 (located on the rectangular plates). Figure 3 As shown, the guide groove 301 is a "7"-shaped special-shaped groove for locking the sliding rod 2. The groove body of the special-shaped groove comprises a horizontal section 3011, an inclined section 3012, and an arc section 3013. The upper part of the special-shaped groove is the horizontal section 3011, and one side of the horizontal section 3011 is the inclined section 3012 inclined downward, and the lower part of the inclined section 3012 is the arc section 3013. The arc section 3013 bulges upward to form a raised portion 13014 between the horizontal section 3011, so that the sliding rod 2 is locked at the bottom end of the arc section 3013 after sliding from the horizontal section 3011 into the arc section 3013. The connecting buckle 4 has a vertical strip groove 401 running through both sides; one connecting buckle 4 is equipped with a sliding rod 2; after the sliding rod 2 passes through the strip groove 401 of the connecting buckle 4, both ends pass through the strip grooves 401 on both sides of the connecting buckle 4 respectively; adjacent sliding rods 2 are connected by reset springs 5, so that four sliding rods 2 and four reset springs 5 ​​form an octagonal structure; the part of the connecting buckle 4 facing the central circular hole 101 is a wedge-shaped lock tongue structure (the lower end is a rising wedge similar to the lock tongue); Figure 4 As shown, the main body of the connecting buckle 4 is a rectangular block 403 , on which there is a vertically downward strip groove 401 , and on one side of the rectangular block 403 there is a wedge-shaped lock head 402 .

[0023] The connector 6 is composed of a mushroom-shaped connector 601 (hemispherical), a connector rod I602, a limit plate portion 603, and a connector rod II604 from top to bottom; an annular groove is formed between the mushroom-shaped connector 601 and the limit plate portion 603; the connector rod II604 is connected to the lower column top plate 7 below; In the initial state, under the action of the reset tension spring 5, the sliding rod 2 pushes the wedge-shaped locking tongue structure of the connecting buckle 4 to above the central circular hole 101; When the upper and lower cylinders are assembled, the connector 6 is inserted into the central circular hole 101, and the mushroom-shaped connector 601 pushes the connecting buckle 4, so that the sliding rod 2 moves along the curved guide groove 301 to the bending part of the guide groove. When the mushroom-shaped connector 601 moves to the top of the connecting buckle 4, the sliding rod 2 bends through the guide groove under the tension of the reset tension spring 5, so that the wedge-shaped lock tongue of the connecting buckle 4 rebounds, thereby limiting the lower end of the mushroom-shaped connector 601.

[0024] Embodiment 2: The main structure of this embodiment is the same as that of embodiment 1. Furthermore, the connecting rod II604 is in the shape of a square column, and the top surface 701 of the lower column top plate 7 is provided with a square hole that matches the connecting rod II604; the lower end of the square hole has a square sleeve, and after the connecting rod II604 is inserted into the square sleeve, it is connected to the lower column top plate 7 by bolts. Furthermore, after the upper and lower columns are butted up and down by the snap-fit ​​structure and the connector 6, the upper column bottom plate 1 and the lower column top plate 7 can be further fixed by bolts, screws or welding.

[0025] Embodiment 3: The main structure of this embodiment is the same as that of embodiment 1 or 2. Figure 2 As shown, there is also a shear plate 8 between the upper column bottom plate 1 and the lower column top plate 7; the shear plate 8 is provided with a through hole for the connector 6 to pass through.

Claims

1. A resettable self-locking column-column connection node for MiC buildings, characterized by: It comprises a buckle structure arranged on the upper column bottom plate (1) and a connector (6) connected to the lower column top plate (7); The buckle structure comprises four buckle supports (3) distributed around the central circular hole (101) of the upper column bottom plate (1); each buckle support (3) has a groove body for accommodating the connecting buckle (4) on one side facing the central circular hole (101); both sides of the groove body have guide grooves (301); the connecting buckle (4) has a vertical strip groove (401) running through both sides; one connecting buckle (4) is equipped with a sliding rod (2); after the sliding rod (2) passes through the strip groove (401) of the connecting buckle (4), both ends of the sliding rod (2) respectively pass through the strip grooves (401) on both sides of the connecting buckle (4); adjacent sliding rods (2) are connected by reset springs (5), so that the four sliding rods (2) and the four reset springs (5) form an octagonal structure; the part of the connecting buckle (4) facing the central circular hole (101) is a wedge-shaped locking tongue structure; The connector (6) comprises, from top to bottom, a mushroom-shaped connector (601), a connector rod I (602), a limit plate portion (603), and a connector rod II (604); an annular groove is formed between the mushroom-shaped connector (601) and the limit plate portion (603); the connector rod II (604) is connected to the lower column top plate (7) below; In the initial state, under the action of the reset tension spring (5), the sliding rod (2) pushes the wedge-shaped locking tongue structure connected to the buckle (4) to the top of the central circular hole (101); When the upper and lower cylinders are assembled, the connector (6) is inserted into the central circular hole (101), and the mushroom-shaped connector (601) pushes the connecting buckle (4), so that the sliding rod (2) moves along the bent guide groove (301) to the bending part of the guide groove. When the mushroom-shaped connector (601) moves to the top of the connecting buckle (4), the sliding rod (2) bends through the guide groove under the tension of the return tension spring (5), so that the wedge-shaped locking tongue of the connecting buckle (4) rebounds, thereby limiting the lower end of the mushroom-shaped connector (601).

2. A resettable self-locking column-column connection node for MiC buildings according to claim 1, characterized in that: The connecting rod II (604) is in the shape of a square column, and the top surface (701) of the lower column top plate (7) is provided with a square hole that matches the connecting rod II (604); the lower end of the square hole is provided with a square sleeve, and after the connecting rod II (604) is inserted into the square sleeve, it is connected to the lower column top plate (7) by bolts.

3. The resettable self-locking column-column connection node for MiC buildings according to claim 1, characterized in that: An anti-shear plate (8) is also provided between the upper column bottom plate (1) and the lower column top plate (7); a through hole is provided on the anti-shear plate (8) for the connector (6) to pass through.

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