Detachable magnetic module beam connecting structure

Abstract

The application discloses a detachable magnetic module beam connecting structure, which comprises a module beam, the side of the module beam is provided with a module column, and a cast iron shell is arranged in the module beam and is attached to the inner wall of the module beam; a cylindrical cavity along the length direction is formed in the cast iron shell, an electric soft iron layer is arranged on the inner wall of the cavity, a magnetic core is arranged in the electric soft iron layer, and a brass strip is arranged on the side of the cast iron shell along the length direction of the cast iron shell and separates the middle part of the cast iron shell and the electric soft iron layer; the magnetic core comprises a grid plate and magnetic blocks, the grid plate is composed of horizontal plates with the same length as the cast iron shell and vertical plates which are arranged on the upper and lower end faces of the horizontal plates in a uniform manner, the magnetic blocks with the same magnetic pole direction are arranged between the adjacent vertical plates, and the edges of the vertical plates and the magnetic blocks are all arc surfaces which are in sliding fit with the cavity in the cast iron shell. The application aims to provide a magnetic module beam connecting structure which is convenient to assemble and disassemble, does not need to form bolt holes on the module beam and avoids weakening the cross section of the module beam.

Description

Technical Field

[0001] This invention relates to the field of modular steel structure building technology, and in particular to a detachable magnetic modular beam connection structure. Background Technology

[0002] Modular steel structures are a highly integrated building structure, representing an advanced stage in the development of industrialized construction. Due to the high degree of factory completion in modular steel structure buildings, interior and exterior wall panels, roofs, interior finishes, and some electromechanical pipelines can be integrated into each module unit during the production stage. Therefore, the assembly and disassembly of these module units becomes one of the most critical steps in the building's installation and dismantling process. The efficiency of the connection structure assembly and disassembly directly affects the on-site construction progress. However, most existing modular steel structure nodes use welding and bolt connections, which are complex to install and lack detachability. Furthermore, most existing module units use column-to-column connections, lacking suitable modular beam connection technology. Currently proposed modular beam connection structures primarily use bolt connections, which cannot be applied to modular floor beams due to insufficient construction space. Therefore, there is an urgent need for a magnetic modular beam connection structure that is easy to install and dismantle, requires no bolt holes in the module beams, and avoids weakening the module beam cross-section. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and to provide a magnetic modular beam connection structure that is easy to install and dismantle, does not require bolt holes in the modular beam, and avoids weakening the cross-section of the modular beam.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0005] A detachable magnetically attached modular beam connection structure includes a modular beam, a modular column on the side of the modular beam, a beam-column node box connecting the modular column and the modular beam, and a cast iron shell fitted to the inner wall of the modular beam. The cast iron shell has a cylindrical cavity along its length, the inner wall of which is lined with an electrical soft iron layer, and a magnetic core is disposed within the electrical soft iron layer. A brass strip, extending along the length of the cast iron shell and separating the middle of the cast iron shell and the electrical soft iron layer, is disposed on the side of the cast iron shell. The magnetic core includes a grid plate and magnetic blocks. The grid plate consists of a horizontal plate of the same length as the cast iron shell and vertical plates evenly distributed on the upper and lower ends of the horizontal plate. Magnetic blocks with the same magnetic pole direction are embedded between adjacent vertical plates. The edges of the vertical plates and magnetic blocks are arc surfaces that slide in conjunction with the inner cavity of the cast iron shell. Rotating rods are fixedly connected to the axes on both sides of the magnetic core, and the other end of each rotating rod passes through the beam-column node box and has a rotating head at its end.

[0006] Furthermore, a limiting plate is fixedly installed on the side end inside the module beam, and an opening is provided in the center of the limiting plate to allow the rotating rod to pass through.

[0007] Furthermore, the rotating head is a hexagonal head.

[0008] Furthermore, the magnetic block is made of a permanently strong magnetic material.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] The magnetic attraction component in this invention is positioned at the center of the modular beam, connecting adjacent modular beams through magnetic attraction. No bolt holes need to be drilled in the modular beams during installation and disassembly, thus avoiding weakening the beam cross-section. Installation and disassembly only require rotating the rotating head within the beam-column joint box to adjust the magnetic force of the magnetic core, enabling the connection and disconnection of the modular beams, as well as flexible combination. This allows both the modular beams and the magnetic attraction component to be prefabricated in the factory, improving on-site installation efficiency and reducing manual labor. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of the present invention;

[0012] Figure 2 This is a schematic diagram of the modular beam structure in this invention;

[0013] Figure 3 This is a schematic diagram of the magnetic suction component in this invention;

[0014] Figure 4 This is a schematic diagram of the magnetic core structure in this invention;

[0015] Figure 5 This is a diagram showing the state of the magnetic core when the magnetic force is disconnected according to the present invention.

[0016] Figure 6 This is a diagram showing the state of the magnetic core during magnetic connection according to the present invention.

[0017] Figure label:

[0018] 1-Module beam, 2-Module column, 3-Beam-column node box, 4-Cast iron shell, 5-Brass strip, 6-Electrical soft iron layer, 7-Magnetic core, 8-Rotating rod, 9-Limiting plate, 10-Rotating head, 71-Grid plate, 72-Magnetic block. Detailed Implementation

[0019] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] like Figures 1 to 6As shown, a detachable magnetic modular beam connection structure includes a modular beam 1, a modular column 2 on the side of the modular beam 1, a beam-column node box 3 connecting the modular column 2 and the modular beam 1, and a cast iron shell 4 that fits against the inner wall of the modular beam 1 inside the modular beam 1. The cast iron shell 4 has a cylindrical cavity along its length inside, and an electrical soft iron layer 6 is provided on the inner wall of the cavity. A magnetic core 7 is provided inside the electrical soft iron layer 6. A magnetic core 7 is provided on the side of the cast iron shell 4 along its length, connecting the cast iron shell 4 and the electrical soft iron layer 7. The iron layer 6 is divided by brass strips 5 in the middle; the magnetic core 7 includes a grid plate 71 and magnetic blocks 72. The grid plate 71 is composed of a horizontal plate of the same length as the cast iron shell 4 and vertical plates evenly distributed on the upper and lower ends of the horizontal plate. Magnetic blocks 72 with the same magnetic pole direction are embedded between adjacent vertical plates. The edges of the vertical plates and magnetic blocks 72 are arc surfaces that slide with the cavity inside the cast iron shell 4. Rotating rods 8 are fixedly connected to the shafts on both sides of the magnetic core 7. The other end of the rotating rod 8 passes through the beam-column node box 3 and is provided with a rotating head 10 at the end.

[0021] In this module beam 1, a limiting plate 9 is fixedly installed on each side end inside. The center of the limiting plate 9 is provided with an opening for the rotating rod 8 to pass through. The limiting plate 9 provides support and limitation for the rotating rod 8, so that the rotating rod 8 is located at the axial center of the module beam 1.

[0022] The rotating head 10 is hexagonal, making it easy to tighten directly with a wrench. Furthermore, the rotating head 10 shifts the wrench tightening position from the center of the modular beam 1 to inside the beam-column joint box 3, thus avoiding the need for additional openings on the modular beam 1, preventing weakening of the modular beam 1's cross-section, and essentially not occupying the installation space of the beam-column joint.

[0023] The cast iron shell 4 in this invention is paramagnetic and can be excited by the magnetic core 7 to generate magnetism. The cast iron shell 4 is in close contact with the inner wall of the module beam 1, which is conducive to the conduction of magnetism. The brass strip 5 is antimagnetic. Its function is to cut the magnetic field lines in the cast iron shell 4 when the magnetic core 7 is in a vertical position, so that the magnetism excited by the magnetic core 7 inside the cast iron shell 4 disappears, thereby realizing the disconnection of the module beam 1 connection. The electrical soft iron layer 6 is paramagnetic and has low hardness. It can be closely attached to the magnetic core 7 to ensure that the magnetism of the magnetic core 7 can be well conducted into the cast iron shell 4, while ensuring that the magnetic core 7 can rotate along the axis inside the cast iron shell 4. The magnetic blocks 72 are permanent strong magnetic materials, such as neodymium iron boron magnets. The magnetic blocks 72 are welded or bonded to the grid plate 71 with the same magnetic pole direction. That is, the magnetic pole directions of the magnetic blocks 72 in the upper layer of the horizontal plate are the same, and the magnetic pole directions of the magnetic blocks 72 in the lower layer of the horizontal plate are the same.

[0024] like Figure 5As shown, when it is necessary to disconnect the module beam 1, simply use a wrench to turn the rotating head 10 to rotate the magnetic core 7 to the vertical position. The magnetic field lines originating from the magnetic core 7 are cut by the antimagnetic brass strip 5, causing the magnetism generated inside the cast iron shell 4 by the magnetic core 7 to disappear, thereby disconnecting the module beam 1.

[0025] like Figure 6 As shown, when it is necessary to connect the module beams 1, use a wrench to turn the rotating head 10 so that the magnetic core 7 is rotated to a horizontal position. Since the width of the magnetic core 7 is greater than the thickness of the brass strip 5, the magnetic field lines starting from the magnetic core 7 can return to the magnetic core 7 through the upper and lower halves of the cast iron shell 4 respectively, thereby generating closed magnetic field lines in the magnetic attraction component. When magnetic field lines in the same direction are generated in two adjacent module beams 1, the two module beams 1 will be attracted together in the horizontal direction to form a connection.

[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A detachable magnetic modular beam connection structure, comprising a modular beam (1), characterized in that: The module beam (1) has a module column (2) on its side. A beam-column node box (3) connects the module column (2) and the module beam (1). A cast iron shell (4) is installed inside the module beam (1) and fits against the inner wall of the module beam (1). A cylindrical cavity along the length direction is opened inside the cast iron shell (4). An electrical soft iron layer (6) is installed on the inner wall of the cavity. A magnetic core (7) is installed inside the electrical soft iron layer (6). A brass plate is installed on the side of the cast iron shell (4) along the length direction of the cast iron shell (4) and separates the middle part of the cast iron shell (4) and the electrical soft iron layer (6). Article (5); The magnetic core (7) includes a grid plate (71) and a magnetic block (72). The grid plate (71) is composed of a horizontal plate of the same length as the cast iron shell (4) and vertical plates evenly distributed on the upper and lower ends of the horizontal plate. Magnetic blocks (72) with the same magnetic pole direction are embedded between adjacent vertical plates. The edges of the vertical plates and the magnetic blocks (72) are arc surfaces that slide with the cavity inside the cast iron shell (4). Rotating rods (8) are fixedly connected to the shafts on both sides of the magnetic core (7). The other end of the rotating rod (8) passes through the beam-column node box (3) and is provided with a rotating head (10) at the end.

2. The detachable magnetic modular beam connection structure according to claim 1, characterized in that: Limiting plates (9) are fixedly installed on the side ends inside the module beam (1), and the center of the limiting plate (9) is provided with an opening for the rotating rod (8) to pass through.

3. The detachable magnetic modular beam connection structure according to claim 1, characterized in that: The rotating head (10) is a hexagonal head.

4. The detachable magnetic modular beam connection structure according to claim 1, characterized in that: The magnetic block (72) is a permanent strong magnetic material.

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