A kind of plug-in single-layer aluminum alloy net shell connecting node

Abstract

This utility model belongs to the field of aluminum alloy mesh shell connection structures, and specifically relates to a plug-in type single-layer aluminum alloy mesh shell connection node. The technology includes a vertically arranged connecting column, which is a hollow prismatic structure. A top plate is horizontally fixed to the upper end of the connecting column, and a bottom plate is horizontally fixed to the lower end. Through grooves are formed on the left and right side walls of the connecting column, through which a main connecting member is horizontally inserted. A fixing member for securing the main connecting member is provided between the main connecting member and the top plate. Secondary connecting members are horizontally arranged on the other opposite side walls of the connecting column. The two secondary connecting members are symmetrical about the central axis of the connecting column, and a connecting member for securing the secondary connecting members is installed between the secondary connecting members and the side walls of the connecting column. In this utility model, the joint force is shared by both plug-in and fixed connections, reducing the risk of node failure under repeated loads.

Description

Technical Field

[0001] This utility model belongs to the field of aluminum alloy mesh shell connection structure, and in particular relates to a plug-in single-layer aluminum alloy mesh shell connection node. Background Technology

[0002] Aluminum alloys, with their lightweight, high strength, and excellent corrosion resistance, offer significant advantages in the construction industry. They not only meet the performance requirements of buildings but also effectively reduce construction costs, enhancing the economic efficiency of construction. Aluminum alloy grid shell structures are constructed by connecting aluminum alloy profiles using various joints. Due to their lightweight and high strength, they are widely used in the construction industry. As a key component of aluminum alloy grid shell structures, the design, construction, and performance of these joints have a direct and significant impact on the overall safety, stability, and economy of the grid shell structure.

[0003] Currently, existing aluminum alloy reticulated shell connection node technologies include cylindrical wedges with cover plates at both ends. T-shaped slots are formed inside the wedges, into which shear-resistant connecting plates are inserted. Aluminum alloy members are connected to the wedges via the shear-resistant connecting plates and bolts. In practical applications, this technology primarily relies on the interlocking connections between components to transfer forces. Under load, the interlocking points often exhibit abrupt geometric changes, such as the slots in the wedges and the pins in the shear-resistant connecting plates. These geometrically abrupt changes are prone to stress concentration. Stress concentration leads to local stresses far exceeding the average stress, thereby reducing the fatigue life of the material and increasing the risk of node failure under repeated loading. Utility Model Content

[0004] The purpose of this invention is to provide a plug-in single-layer aluminum alloy mesh shell connection node with a simple structure, which allows for stress distribution through both methods, reducing the risk of node failure under repeated loads.

[0005] The plug-in single-layer aluminum alloy mesh shell connection node includes a vertically arranged connecting column. The connecting column has an internally hollow prismatic structure. A top plate is horizontally fixed at the upper end of the connecting column, and a bottom plate is horizontally fixed at the lower end of the connecting column. Through grooves with internal and external communication are opened on the left and right side walls of the connecting column. A main connecting member is horizontally inserted into the through groove. A fixing member for fixing the main connecting member is provided between the main connecting member and the top plate. A secondary connecting member is horizontally arranged on the other opposite side walls of the connecting column. The two secondary connecting members are symmetrical about the central axis of the connecting column. A connecting member for fixing the secondary connecting member is installed between the secondary connecting member and the side wall of the connecting column.

[0006] Furthermore, the connector includes a second connecting plate, which is vertically fixed to the side wall of the connecting column by a second bolt. The secondary connector is horizontally fixed to the end of the second connecting plate, and a third bolt for fixing the rod is installed on the secondary connector.

[0007] Furthermore, through holes are provided on both the upper and lower opposite second connecting plates, and corresponding through holes are provided on the side wall of the connecting column. A cable is independently installed in each of the two through holes, and both ends of the cable are fixed with ends that are attached to the outer side wall of the second connecting plate.

[0008] Furthermore, extension plates are vertically fixed on both sides of the secondary connector. The extension plates have an "L" shape. The vertical sections of the extension plates are respectively installed on the side walls of the secondary connector, and the horizontal sections of the extension plates are located below the secondary connector. A gap is left between the horizontal sections of the two extension plates.

[0009] Furthermore, the fastener includes a first connecting plate, which has an outward-facing "U"-shaped structure. One end of the first connecting plate is fixed to the top plate by a first bolt, and the other end of the first connecting plate is fixed to the main connecting member by a first bolt.

[0010] Furthermore, the connecting column has a hexagonal prism structure.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] In this invention, a rectangular connecting rod is inserted into and fixed within the main connecting member. The main connecting member and the connecting column bear the main axial stress, preventing the connecting rod from bending. The end of the I-shaped connecting rod is inserted into the secondary connecting member. The tension provided by the cable increases the load-bearing capacity of the secondary connecting member. Compared with the prior art, the two work together to share the load through both insertion and fixed connections, reducing the risk of node failure under repeated loads. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 for Figure 1 Top view after removing the top plate;

[0015] Figure 3 for Figure 2 A schematic diagram of the structure after removing the main connecting parts;

[0016] Figure 4 for Figure 3 Sectional view at AA;

[0017] Figure 5 for Figure 3 Left view of the middle and auxiliary connector;

[0018] The components in the diagram are named as follows: 1. Top plate; 2. First connecting plate; 3. Connecting column; 4. Cable; 5. First bolt; 6. Main connector; 7. Base plate; 8. Secondary connector; 9. Second connecting plate; 10. End; 11. Second bolt; 12. Third bolt; 13. Extension plate. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this 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.

[0020] Example 1

[0021] This embodiment describes a plug-in single-layer aluminum alloy mesh shell connection node, such as... Figures 1 to 5 As shown, it includes a vertically arranged connecting column 3. The connecting column 3 has a hollow prism structure. The side wall of the prism structure connecting column 3 is a planar structure. Compared with the traditional cylindrical structure, the planar structure of the connecting column 3 is more conducive to the installation of connecting parts. When the connecting rod of the aluminum alloy mesh is inserted into the connecting column 3, the end of the connecting rod is pressed against the side wall of the connecting column 3, which can withstand greater axial stress.

[0022] A top plate 1 is horizontally fixed to the upper end of the connecting column 3, and a bottom plate 7 is horizontally fixed to the lower end of the connecting column 3. The top plate 1 and the bottom plate 7 are horizontally fixed to the upper and lower ends of the connecting column 3, respectively. When the main connecting piece 6 is inserted into the connecting column 3, the top plate 1 and the bottom plate 7 are fixed to the upper and lower sides of the main connecting piece 6 by bolts. This can provide tension to the upper and lower sides of the main connecting piece 6 at the same time, preventing the main connecting piece 6 from bending under stress and preventing the connecting column 3 from deforming under stress, thereby improving the shear resistance of the main connecting piece 6 and the connecting column 3.

[0023] The connecting column 3 has through grooves on its left and right side walls that are open to the inside and outside. The main connecting member 6 is horizontally inserted into the through groove. The main connecting member 6 is a rectangular rod structure with a hollow interior. The main connecting member 6 is mainly used to connect the rectangular connecting rods in the aluminum alloy mesh shell. The main connecting member 6 is horizontally inserted into the through groove and into the connecting column 3, so that the main connecting member 6 and the connecting column 3 form a whole. The main connecting member 6 mainly bears the axial stress of the node and prevents the connecting rods inserted into the main connecting member 6 from bending.

[0024] The first connecting plate 2 has an outward-facing "U"-shaped structure. One end of the first connecting plate 2 is fixed to the top plate 1 by the first bolt 5, and the other end of the first connecting plate 2 is fixed to the main connecting member 6 by the first bolt 5. One vertical section of the first connecting plate 2 is attached to the side wall of the connecting column 3, one horizontal section is fixed to the top plate 1 or the bottom plate 7 by the first bolt 5, and another horizontal section is fixed to the top or bottom of the main connecting member 6 by the first bolt 5. The main connecting member 6 is fixed to the connecting column 3 by the first connecting plate 2. The top plate 1 and the bottom plate 7 provide support for the main connecting member 6 through the first connecting plate 2, thereby improving the load-bearing capacity of the main connecting member 6. This section as a whole constitutes a fixing component for fixing the main connecting member 6. Of course, there are four sets of fixing components. The upper two sets of fixing components are located between the top of the main connecting member 6 and the bottom of the top plate 1, and the lower two sets of fixing components are located between the bottom of the main connecting member 6 and the bottom plate 7.

[0025] A secondary connector 8 is horizontally arranged on the other opposite side walls of the connecting column 3. The secondary connector 8 includes two connecting plates, upper and lower. The secondary connector 8 is mainly used to connect the I-beam connecting rods in the aluminum alloy mesh shell. After the end of the I-beam connecting rod is inserted into the secondary connector 8, the upper and lower connecting plates are fixed to the upper and lower ends of the I-beam connecting rod by bolts to bear the axial stress of the I-beam connecting rod. The two secondary connectors 8 are symmetrical about the central axis of the connecting column 3. When the connecting column 3 is a quadrangular prism, the two secondary connectors 8 are installed on the upper and lower side walls of the connecting column 3 respectively, and the two secondary connectors 8 are symmetrical about the central axis.

[0026] The second connecting plate 9 is vertically fixed to the side wall of the connecting column 3 by the second bolt 11. A horizontal through hole is provided on the upper part of the second connecting plate 9, and a threaded hole is provided on the side wall of the connecting column 3. The second connecting plate 9 is vertically fitted to the side wall of the connecting column 3. By rotating the second bolt 11, the second connecting plate 9 is fixed to the side wall of the connecting column 3. The secondary connecting member 8 is horizontally fixed to the end of the second connecting plate 9. One end of the second connecting plate 9 rests against the top plate 1 or the bottom plate 7, and the end of the secondary connecting member 8 is fixed to the other end of the second connecting plate 9. A third bolt 12 for fixing the rod is installed on the secondary connecting member 8. The end of the I-beam connecting rod of the aluminum alloy mesh shell abuts against the side wall of the connecting column 3, located in the secondary connecting member... Between the components 8, the I-beam connecting rod is fixed inside the secondary connecting component 8 by the third bolt 12; this section as a whole constitutes the connecting component used to fix the secondary connecting component 8. When the connecting component is in use, the second connecting plate 9 is vertically attached to the side wall of the connecting column 3, and the second connecting plate 9 is fixed to the side wall of the connecting column 3 by the second bolt 11. The end of the I-beam connecting rod abuts against the side wall of the connecting column 3, and the secondary connecting component 8 is fixed to the I-beam connecting rod by the third bolt 12; of course, there are four sets of connecting components. Two sets are set between the upper secondary connecting component 8 and the top plate 1, and the two sets of connecting components are symmetrical. The other two sets are set between the lower secondary connecting component 8 and the bottom plate 7. The four sets of connecting components fix the four secondary connecting components 8 to the side wall of the connecting column 3.

[0027] The connecting column 3 has a hexagonal prism structure. The hexagonal prism connecting column 3 can connect one rectangular connecting rod and two I-beam connecting rods at the same time. At this time, the connecting column 3 is subjected to uniform force and meets the requirement that the node needs to connect multiple connecting rods.

[0028] Working principle: The main connector 6 is horizontally inserted into the connecting column 3. The main connector 6 and the connecting column 3 are integrated into a single structure by four sets of fasteners. The rectangular connecting rod of the aluminum alloy mesh shell is inserted into the main connector 6 and fixed in the main connector 6 by bolts. The main connector 6 bears the stress of the node and prevents the connecting rod from bending. The secondary connector 8 is horizontally fixed to the side wall of the connecting column 3 by the connector. The secondary connector 8 and the extension plate 13 cooperate to form a rectangular slot with a notch at the bottom. The end of the I-shaped connecting rod of the aluminum alloy mesh shell is inserted into the slot and abuts against the side wall of the connecting column 3. The side wall of the I-shaped connecting rod is fixed in the slot by bolts. The secondary connector 8 provides support for the I-shaped rod. There are also cables 4 connecting the opposite connectors. When one of the secondary connectors 8 is under greater stress, the cable 4 provides tension to the secondary connector 8, further improving the bearing capacity of the secondary connector 8 and ensuring the stability of the connection node.

[0029] Example 2

[0030] This embodiment further illustrates the technology, such as Figures 1 to 5 As shown, through holes are provided on the upper and lower opposite second connecting plates 9, and through holes are provided on the side wall of the connecting column 3 corresponding to the through holes. A cable 4 is independently installed in the two through holes. Through holes are provided on the upper and lower second connecting plates 9, and the two ends of the cable 4 are respectively installed in the through holes. The cable 4 located inside the connecting column 3 avoids the main connecting piece 6.

[0031] Both ends of the cable 4 are fixed with end caps 10, which are attached to the outer side wall of the second connecting plate 9. The end caps 10 are respectively set on the side walls of the upper and lower sides of the second connecting plate 9.

[0032] In this embodiment, when one of the sub-connectors 8 is subjected to axial stress, the sub-connector 8 swings up and down, causing the second connecting plate 9 to move away from the side wall of the connecting column 3. The tension generated by the cable 4 causes the second connecting plate 9 to adhere to the side wall of the connecting column 3, further improving the bearing capacity of the sub-connector 8 and ensuring the stability of the connection node.

[0033] Example 3

[0034] This embodiment further illustrates the technology, such as Figure 4 and Figure 5As shown, extension plates 13 are vertically fixed on both sides of the secondary connector 8. The extension plates 13 have an "L" shape. The vertical sections of the extension plates 13 are respectively installed on the side walls of the secondary connector 8, and the horizontal sections of the extension plates 13 are located below the secondary connector 8. There is a gap between the horizontal sections of the two extension plates 13. There are two extension plates 13, which are respectively installed on the front and rear side walls of the secondary connector 8. The vertical section of the front extension plate 13 is fixed on the front side wall of the secondary connector 8, and the vertical section of the rear extension plate 13 is fixed on the rear side wall of the secondary connector 8. The horizontal sections of the two extension plates 13 and the secondary connector 8 together form a rectangular slot with a notch at the bottom. After the H-beam connecting rod of the aluminum alloy mesh shell is inserted into the rectangular slot, the horizontal sections of the secondary connector 8 and the extension plates 13 together provide support for the side wall of the H-beam connecting rod, further improving the load-bearing capacity of the secondary connector 8 and ensuring the stability of the connection node.

Claims

1. A plug-in single-layer aluminum alloy mesh shell connection node, comprising a vertically arranged connecting column (3), the connecting column (3) having an internally hollow prismatic structure, a top plate (1) horizontally fixed at the upper end of the connecting column (3), and a bottom plate (7) horizontally fixed at the lower end of the connecting column (3), characterized in that: The connecting column (3) has through grooves on its left and right side walls that are connected internally and externally. A main connecting piece (6) is horizontally installed in the through groove. A fixing piece for fixing the main connecting piece (6) is provided between the main connecting piece (6) and the top plate (1). A secondary connecting piece (8) is horizontally installed on the other opposite side walls of the connecting column (3). The two secondary connecting pieces (8) are symmetrical about the central axis of the connecting column (3). A connecting piece for fixing the secondary connecting piece (8) is installed between the secondary connecting piece (8) and the side wall of the connecting column (3).

2. The plug-in single-layer aluminum alloy mesh shell connection node according to claim 1, characterized in that: The connector includes a second connecting plate (9), which is vertically fixed to the side wall of the connecting column (3) by a second bolt (11). The secondary connector (8) is horizontally fixed to the end of the second connecting plate (9), and a third bolt (12) for fixing the rod is installed on the secondary connector (8).

3. The plug-in single-layer aluminum alloy mesh shell connection node according to claim 2, characterized in that: Through holes are provided on the upper and lower opposite second connecting plates (9), and through holes are provided on the side wall of the connecting column (3) corresponding to the through holes. A cable (4) is independently installed in the two through holes. Both ends of the cable (4) are fixed with end heads (10), and the end heads (10) are attached to the outer side wall of the second connecting plate (9).

4. The plug-in single-layer aluminum alloy mesh shell connection node according to claim 1, characterized in that: Extension plates (13) are vertically fixed on both sides of the sub-connector (8). The extension plates (13) are in an "L" shape. The vertical sections of the extension plates (13) are installed on the side walls of the sub-connector (8), and the horizontal sections of the extension plates (13) are located below the sub-connector (8). There is a gap between the horizontal sections of the two extension plates (13).

5. The plug-in single-layer aluminum alloy mesh shell connection node according to claim 1, characterized in that: The fastener includes a first connecting plate (2), which has an outward-facing "U" shaped structure. One end of the first connecting plate (2) is fixed to the top plate (1) by a first bolt (5), and the other end of the first connecting plate (2) is fixed to the main connecting member (6) by a first bolt (5).

6. The plug-in single-layer aluminum alloy mesh shell connection node according to claim 1, characterized in that: The connecting column (3) has a hexagonal prism structure.

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