A 3D printed panel exterior wall construction

Abstract

The application provides a kind of 3D printing plate outer wall structure.The 3D printing plate outer wall structure includes a keel, a plurality of 3D printing plates and a plurality of first connecting pieces and a plurality of second connecting pieces connected to the keel, the keel is provided with a corbel, the 3D printing plate is hollow inside to form a panel and a back plate, the back plate is provided with a plurality of connecting plates, a plurality of the 3D printing plates are sequentially overlapped, and a sealing element is provided at the overlapping portion, wherein the connecting plate is hung with the first connecting piece, and the remaining connecting plates are fixedly connected with the second connecting piece.The 3D printing plate is designed as a hollow structure, which can increase the printing area of the 3D printing plate, reduce the number of 3D printing plate splicing, thereby reducing the splicing seam, ensuring sealing and wind resistance.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, and in particular to a 3D printed panel exterior wall structure. Background Technology

[0002] In recent years, the application of 3D printing technology in the construction field has gradually expanded from small components to large-scale exterior wall systems. However, existing 3D printed exterior wall construction and installation technologies have the following problems: (i) Numerous splicing seams, poor sealing and wind resistance: Existing 3D printed exterior wall panels mostly use small panels spliced ​​together. The single panel area is small and the number of splicing seams is large. Due to poor sealing, rainwater leakage and air infiltration are likely to occur. The wind uplift resistance is limited by the strength of the splicing nodes, making it difficult to meet the requirements of high-rise building exterior walls. (ii) Poor compatibility with steel structures and difficulty in adjusting installation deviations: The existing 3D printed plates are mostly connected to the steel structure keel by bolts, which is difficult to adapt to the slight deviations of the steel structure installation on site. This can easily lead to warping or uneven gaps after the plate is installed, requiring secondary cutting and grinding, which reduces construction efficiency. (iii) To ensure strength, existing 3D printed exterior wall panels are mostly solid structures, weighing 40-50 kg / m², which increases the load on the steel structure and transportation and installation costs. Summary of the Invention

[0003] The purpose of this invention is to provide a 3D printed board exterior wall structure that can reduce the weight of the 3D printed board, balance its strength, and improve its compatibility with the keel.

[0004] The technical solution of the present invention is: a 3D printed plate exterior wall structure, including a keel, multiple 3D printed plates, and multiple first connectors and multiple second connectors connected to the keel. The keel is provided with brackets. The 3D printed plates are hollow inside to form a front panel and a back panel. Multiple connecting plates are provided on the back panel. The multiple 3D printed plates are overlapped in sequence, and a sealing element is provided at the overlap. The connecting plates are hung with the first connectors, and the remaining connecting plates are fixedly connected to the second connectors.

[0005] In the above solution, the 3D printed board is designed as a hollow structure, which increases the printing area of ​​the 3D printed board, reduces the number of 3D printed board splices, thereby reducing seams and ensuring sealing and wind resistance performance; the hollow 3D printed board is lighter, which is conducive to handling and installation; by making full use of the material and structural characteristics of the 3D printed board, it is connected to the keel by the first connector in a hook-and-loop manner and in a fixed manner, realizing the feasibility, effectiveness, stability and reliability of the installation of the 3D printed board and the steel structure keel, making it possible to replace the exterior wall panel with the 3D printed board.

[0006] Preferably, the first connector includes a first bracket, a second bracket, and a hanger. One end of the first bracket is connected to the bracket leg by a fastener, and the other end of the first bracket is connected to one end of the hanger by a fastener. One end of the second bracket is connected to the connecting plate by a fastener, and the other end of the second bracket, the other end of the hanger, and the back plate abut against each other in sequence.

[0007] Preferably, the pendant is fitted with a nylon pad, which abuts against the back plate and the second bracket respectively.

[0008] Preferably, the connecting plate is provided with a first mounting hole extending in the Z direction, one end of the first bracket is provided with a second mounting hole extending in the X direction, the other end of the first bracket is provided with a third mounting hole extending in the Y direction, the second bracket is connected to the first mounting hole, the bracket is connected to the second mounting hole, and the hanger is connected to the third mounting hole.

[0009] Preferably, the second connector includes a third bracket and a fourth bracket, the fourth bracket being connected to the connecting plate, one end of the third bracket being connected to the bracket leg, and the other end of the third bracket being connected to the fourth bracket.

[0010] Preferably, the connecting plate is provided with a first mounting hole extending along the Z direction, one end of the third bracket is provided with a fourth mounting hole extending along the X direction, the other end of the third bracket is provided with a fifth mounting hole extending along the Y direction, the fourth bracket is connected to the first mounting hole and the fifth mounting hole respectively, and the bracket is connected to the fourth mounting hole.

[0011] Preferably, the connecting plate is provided with rubber gaskets on both outer surfaces of the fastener in the axial direction. The rubber gasket on one side is pressed together by a second or fourth bracket, and the rubber gasket on the other side is pressed together by a clamping plate. The fastener is connected to the rubber gasket, the clamping plate, and the second or fourth bracket.

[0012] Preferably, the hollow 3D printed plate has internal reinforcing ribs that connect the front panel and the back panel.

[0013] Preferably, the 3D printing plate has a slot on one side and an overlap on the other side, the overlap of one 3D printing plate overlaps with the slot of another 3D printing plate, and the sealing element is disposed on the inner surface of the back plate.

[0014] Preferably, a steel wire rope is provided on the diagonal inside the 3D printing plate, and the steel wire rope passes through the 3D printing plate and connects to the keel.

[0015] Compared with related technologies, the beneficial effects of the present invention are as follows: I. This invention designs the 3D printing plate with a hollow structure, thereby increasing the printing area of ​​the 3D printing plate, reducing the number of splices, thus reducing seams and ensuring sealing and wind resistance. The hollow 3D printing plate has reinforcing ribs inside to ensure its strength; for example, under the premise of a lightweight design of 27 kg / m², the bending strength reaches 69 MPa and the tensile strength reaches 544 MPa, far exceeding the performance of traditional hollow plates. The reduced weight of the hollow 3D printing plate facilitates handling and installation. Second, this invention fully utilizes the material and structural characteristics of 3D printed boards, connecting them to the keel via first connectors in a hanging manner and in a fixed manner, thereby achieving the feasibility, effectiveness, stability and reliability of installing 3D printed boards with steel structure keels, making it possible to replace exterior wall panels with 3D printed boards. Third, the connecting plate, the first connecting member, and the second connecting member of the present invention are respectively provided with mounting holes extending in the X, Y, and Z directions, which can be adjusted during installation to avoid poor compatibility due to deviation; it can achieve installation deviation adjustment of ±5mm, adapt to on-site construction errors of the keel, avoid secondary processing, and improve installation efficiency. For example, if the installation efficiency is improved by 30%, taking a 4609㎡ 3D printed exterior wall as an example, the total installation period can be shortened from the traditional 154 days to 108 days; Fourth, the present invention includes a steel wire rope inside the 3D printing plate, which is connected to the keel. When the connector fails, the steel wire rope can bear the weight of the 3D printing plate, preventing it from falling from a height and reducing the safety risk during construction and use by 50%. Attached Figure Description

[0016] Figure 1 An elevation view of the 3D printed board exterior wall structure provided by this invention; Figure 2 A top view of the 3D printed plate exterior wall structure provided by the present invention; Figure 3 Here is a schematic diagram of the 3D printed board: In the attached diagram: 1. 3D printed plate; 11. Front panel; 12. Back panel; 13. Connecting plate; 131. First mounting hole; 14. Reinforcing rib; 15. Slot; 16. Edge overlap; 2. Keel; 21. Bracket; 3. First connector; 31. First bracket; 311. Second mounting hole; 312. Third mounting hole; 32. Second bracket; 33. Hanger; 34. Nylon pad; 4. Steel wire rope; 5. Sealing element; 6. Fastener; 7. Second connector; 71. Third bracket; 711. Fourth mounting hole; 712. Fifth mounting hole; 72. Fourth bracket; 8. Clamping plate; 9. Rubber gasket. Detailed Implementation

[0017] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other. For ease of description, the terms "upper," "lower," "left," and "right" used below only indicate that they correspond to the upper, lower, left, and right directions in the accompanying drawings and do not limit the structure.

[0018] like Figure 1 , Figure 2 As shown, the 3D printed plate exterior wall structure provided in this embodiment includes a 3D printed plate 1, a keel 2, a first connector 3, a steel wire rope 4, a sealing element 5, a fastener 6, and a second connector 7.

[0019] like Figure 3 As shown, the 3D printed plate 1 is hollow to form a front panel 11 and a back panel 12. The front panel 11 is 8mm thick, and the back panel 12 is 5mm thick. Multiple reinforcing ribs 14 are provided inside the hollow 3D printed plate, connecting the front panel 11 and the back panel 12. The reinforcing ribs 14 are 5mm thick and are spaced 200-300mm apart. The reinforcing ribs 14 are integrally printed with the front panel 11 and the back panel 12, improving the plate's bending resistance.

[0020] One side of the 3D printing plate 1 is provided with a slot 15 (recessed to a depth of 12mm), and the other side is provided with an overlap 16. The overlap 16 of one 3D printing plate 1 overlaps with the slot 15 of the other 3D printing plate 1, and the sealing element 5 is provided on the inner surface of the back plate 12 (e.g., Figure 2 (As shown). The sealing element 5 is nitrile rubber. Multiple 3D printed plates 1 are assembled and simultaneously installed on the keel 2 to form a 3D printed exterior wall panel. The back plate 12 is provided with multiple connecting plates 13, and the connecting plates 13 are provided with first mounting holes 131 extending along the Z direction (as shown). Figure 1 (As shown). The dimensions of a single 3D printed board 1 are designed according to the building zoning (maximum size ≤ 2.4m × 1.8m), and the weight per square meter is ≤ 27kg (meeting the load requirements of the steel structure keel 2).

[0021] like Figure 1 , Figure 2 As shown, at least four connecting plates 13 are provided on the 3D printing plate 1. Two of the connecting plates 13 are hooked to the first connecting member 3, and the remaining two connecting plates 13 are fixedly connected to the second connecting member 7.

[0022] The first connecting member 3 includes a first bracket 31, a second bracket 32, a hanger 33, and a nylon pad 34. One end of the first bracket 31 has a second mounting hole 311 extending in the X direction, and the other end has a third mounting hole 312 extending in the Y direction. The second mounting hole 311 is aligned with the through hole on the bracket 21 and then connected by a fastener 6. The hanger 33 is an angle steel, its horizontal side is connected to the third mounting hole 312 by a fastener 6, and a nylon pad 34 is fitted onto the vertical side of the hanger 33. One side of the nylon pad 34 abuts against the back plate 12, and the other side abuts against the second bracket 32. The second bracket 32 ​​is mounted on the first mounting hole 131 by the fastener 6. That is, after the position of the second bracket 32 ​​on the connecting plate 13 is defined, the second bracket 32 ​​compresses the nylon pad 34, confining the hanger 33 between the second bracket 32 ​​and the back plate 12. The nylon pad 34 is selected as a U-shaped round-head nylon pad.

[0023] like Figure 1 , Figure 2 As shown, the second connector 7 includes a third bracket 71 and a fourth bracket 72. The connecting plate 13 has a first mounting hole 131 extending in the Z direction, and one end of the third bracket 71 has a fourth mounting hole 711 extending in the X direction. One end of the fourth bracket 72 is mounted to the first mounting hole 131 via a fastener 6. The other end of the fourth bracket 72 is mounted to a fifth mounting hole 712 at one end of the third bracket 71 via a fastener 6. The fourth mounting hole 711 at the other end of the third bracket 71 is aligned with the through hole on the bracket 21 and then connected via a fastener 6.

[0024] like Figure 2 As shown, the connecting plate 13 is provided with rubber gaskets 9 on both outer surfaces of the fastener 6 along the axis. The rubber gasket 9 on one side is pressed together by the second bracket 32 ​​or the fourth bracket 72, and the rubber gasket 9 on the other side is pressed together by the clamping plate 8. The fastener 6 is connected to the rubber gasket 9, the clamping plate 8, and the second bracket 32 ​​or the fourth bracket 72.

[0025] The first mounting hole 131 extending in the Z direction, the second mounting hole 311 and the fourth mounting hole 711 extending in the X direction, and the third mounting hole 312 and the fifth mounting hole 712 extending in the Y direction can adjust the mounting position of the 3D printing plate 1 to better fit the keel 2.

[0026] like Figure 1 , Figure 2As shown, a steel wire rope 4 is provided diagonally inside the 3D printing plate 1. The steel wire rope 4 passes through the 3D printing plate 1 and connects to the keel 2. The steel wire rope 4 is a Φ2mm stainless steel flexible steel wire rope, and its end is fastened to the keel 2 by a clamp (unlabeled). When the connection node of the 3D printing plate 1 fails, the steel wire rope 4 can bear the weight of the 3D printing plate 1 to prevent it from falling from a height. Moreover, the steel wire rope 4 is hidden inside the hollow cavity of the 3D printing plate 1 and does not affect the appearance.

[0027] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A 3D printed panel exterior wall structure, comprising a keel (2), wherein the keel (2) is provided with brackets (21), characterized in that, It also includes multiple 3D printed plates (1) and multiple first connectors (3) and multiple second connectors (7) connected to the keel (2). The 3D printed plates (1) are hollow inside to form a front panel (11) and a back panel (12). Multiple connecting plates (13) are provided on the back panel (12). The multiple 3D printed plates (1) are overlapped in sequence, and sealing elements (5) are provided at the overlap. The connecting plates (13) are hooked to the first connectors (3), and the remaining connecting plates (13) are connected to the second connectors (7). Fixed connection; the first connecting member (3) includes a first bracket (31), a second bracket (32) and a hanging member (33). One end of the first bracket (31) is connected to the bracket (21) by a fastener (6). The other end of the first bracket (31) is connected to one end of the hanging member (33) by a fastener (6). One end of the second bracket (32) is connected to the connecting plate (13) by a fastener (6). The other end of the second bracket (32), the other end of the hanging member (33) and the back plate (12) abut against each other in sequence. The connecting plate (13) is provided with a first mounting hole (131) extending in the Z direction, one end of the first bracket (31) is provided with a second mounting hole (311) extending in the X direction, the other end of the first bracket (31) is provided with a third mounting hole (312) extending in the Y direction, the second bracket (32) is connected to the first mounting hole (131), the bracket (21) is connected to the second mounting hole (311), and the bracket (33) is connected to the third mounting hole (312). A steel wire rope (4) is provided on the diagonal inside the 3D printing plate (1), and the steel wire rope (4) passes out from the 3D printing plate (1) and connects to the keel (2).

2. The 3D printed panel exterior wall structure according to claim 1, characterized in that, The pendant (33) is fitted with a nylon pad (34), which abuts against the back plate (12) and the second bracket (32).

3. The 3D printed panel exterior wall structure according to claim 1, characterized in that, The second connector (7) includes a third bracket (71) and a fourth bracket (72). The fourth bracket (72) is connected to the connecting plate (13). One end of the third bracket (71) is connected to the cow leg (21), and the other end of the third bracket (71) is connected to the fourth bracket (72).

4. The 3D printed panel exterior wall structure according to claim 3, characterized in that, The connecting plate (13) is provided with a first mounting hole (131) extending in the Z direction, one end of the third bracket (71) is provided with a fourth mounting hole (711) extending in the X direction, the other end of the third bracket (71) is provided with a fifth mounting hole (712) extending in the Y direction, the fourth bracket (72) is connected to the first mounting hole (131) and the fifth mounting hole (712) respectively, and the bracket (21) is connected to the fourth mounting hole (711).

5. The 3D printed panel exterior wall structure according to any one of claims 1-4, characterized in that, The connecting plate (13) is provided with rubber pads (9) on both outer surfaces of the fastener (6) in the axial direction. The rubber pad (9) on one side is pressed by the second bracket (32) or the fourth bracket (72), and the rubber pad (9) on the other side is pressed by the clamping plate (8). The fastener (6) is connected to the rubber pad (9), the clamping plate (8), the second bracket (32) or the fourth bracket (72).

6. The 3D printed panel exterior wall structure according to any one of claims 1-4, characterized in that, The hollow 3D printing plate has a reinforcing rib (14) inside, which is connected between the front panel (11) and the back panel (12).

7. The 3D printed panel exterior wall structure according to any one of claims 1-4, characterized in that, The 3D printing plate has a slot (15) on one side and an overlap (16) on the other side. The overlap (16) of one 3D printing plate overlaps with the slot (15) of another 3D printing plate. The sealing element (5) is disposed on the inner surface of the back plate (12).

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