Fabricated external wall panel dry connection node structure suitable for polar extreme environment

Abstract

This invention discloses a dry connection node structure for prefabricated exterior wall panels suitable for extreme polar environments, specifically relating to the field of exterior wall panel installation. It includes a right-angled plate detachably mounted on the side of the wall panel, with an assembly plate mounted on the right-angled plate. An installation plate is mounted on the side of the right-angled plate closest to the wall panel via the assembly plate. The wall panel and the installation plate are connected by expansion bolts, and a connection hole assembly is provided on the wall panel corresponding to the expansion bolts. The connection hole assembly includes a rectangular groove, one end of which is connected to a positioning hole for installing the expansion bolts. A retaining groove is provided at the top of the rectangular groove. This invention addresses the issue of loosening due to gaps between the expansion bolts and the positioning holes. The elastic component's reset and counter-pull cause the positioning assembly to shift slightly upwards. The positioning plate and retaining block temporarily support the rectangular groove, preventing the wall panel from losing its positioning and descending due to loosening of the expansion bolts and positioning holes. This design is suitable for use in extreme polar environments.

Description

Technical Field

[0001] This invention relates to the field of exterior wall panel installation technology, and more specifically, to a dry connection node structure for prefabricated exterior wall panels suitable for extreme polar environments. Background Technology

[0002] Dry connection nodes are node structures that connect prefabricated exterior wall panels or exterior wall panels to the main structure without relying on wet construction materials such as mortar and concrete. They achieve fixed and detachable connections through mechanical fasteners, special connectors, and clips. This technology in polar environments needs to meet special requirements such as resistance to extreme cold, freeze-thaw resistance, and strong sealing.

[0003] The installation of exterior wall panels involves connecting them to pre-drilled holes with expansion bolts. The expansion bolts are then fixed to connectors, which are in turn fixed to the steel structure. When temperatures drop suddenly in extreme polar environments, the pre-drilled hole wall material of the exterior wall panel shrinks at low temperatures. However, the low-temperature shrinkage rate of expansion bolts (such as stainless steel bolts) is much smaller than that of the pre-drilled hole wall material (such as aluminum alloy wall panels). Due to the compressive stress generated between the two, the hole wall is "stretched" (material plastic deformation), causing gaps to appear between the pre-drilled holes and the expansion bolts. Without support, the exterior wall panel will drop and shift, resulting in unstable installation and use. Summary of the Invention

[0004] The present invention provides a prefabricated exterior wall panel dry connection node structure suitable for extreme polar environments. The problem to be solved is that in the existing prefabricated exterior wall panel dry connection node structure, when the temperature drops suddenly in extreme polar environments, gaps appear between the prefabricated holes and the expansion bolts, and the exterior wall panel that loses support will drop and shift.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a dry connection node structure for prefabricated exterior wall panels suitable for extreme polar environments, comprising a right-angled plate detachably installed on the side of the wall panel, an assembly plate installed on the right-angled plate, and an installation plate installed on the side of the right-angled plate near the wall panel via the assembly plate. The wall panel and the installation plate are connected by expansion bolts, and a connection hole assembly is provided on the wall panel corresponding to the expansion bolts. The connection hole assembly includes a rectangular groove, one end of which is connected to a positioning hole for installing the expansion bolts. A slot is provided at the top of the rectangular groove. A positioning component is movably installed inside the rectangular groove. The positioning component is connected to the assembly plate via an elastic component. The positioning component includes a positioning plate, and a locking block is fixedly provided on the positioning plate. The positioning plate is movably installed inside the rectangular groove, and the locking block is positioned and engaged inside the slot.

[0006] In a preferred embodiment, the elastic component includes a reference component, which includes a reference plate. A moving component is provided between the positioning component and the reference component. The moving component includes a moving plate, and both ends of the moving plate are respectively positioned and connected to the reference plate and the positioning plate.

[0007] In a preferred embodiment, a reference block is provided between the reference plate and the assembly plate, and the reference block is positioned on the assembly plate by screws, and an elastic sheet is connected between the reference plate and the reference block.

[0008] In a preferred embodiment, the movable plate and the positioning component are slidably connected by a crossbar, and a transmission component is provided between the movable plate and the reference plate.

[0009] In a preferred embodiment, the transmission assembly includes a bearing block, which is connected to a transmission gear one and a transmission gear two via a shaft. The diameter of the transmission gear one is larger than the diameter of the transmission gear two.

[0010] In a preferred embodiment, a groove is provided on the movable plate, a movable toothed plate is slidably mounted on the movable plate, and the movable toothed plate slides along the inside of the groove, and the movable toothed plate is fixedly connected to the cross column.

[0011] In a preferred embodiment, a reference toothed plate is fixedly installed on one side of the reference plate, and the reference toothed plate meshes with the transmission gear for two-way transmission, and the movable toothed plate meshes with the transmission gear for two-way transmission.

[0012] In a preferred embodiment, a first gasket is provided between the right-angle plate and the assembly plate, and a second gasket is provided between the right-angle plate and the mounting plate.

[0013] The beneficial effects of this invention are as follows: This invention addresses the issue that when a sudden drop in external ambient temperature causes the wall panel material to shrink, the connecting hole assembly expands due to the shrinkage, and gaps appear between the expansion bolts and the positioning holes, causing them to loosen. The elastic component then resets and pulls back, causing the positioning assembly to shift upwards slightly. The positioning plate and the locking block temporarily support the rectangular groove, preventing the wall panel from losing its positioning and falling due to the loosening of the expansion bolts and positioning holes. This invention is suitable for use in extreme polar environments.

[0014] This invention uses a reference plate as a rigid component, an elastic sheet to provide elastic support, and a transmission assembly to provide transmission differential. When the positioning plate is subjected to the downward force of the wall panel, the limiting of the moving plate causes the horizontal column to drive the moving toothed plate to move vertically downward, thereby driving the second transmission gear to rotate. This allows the first transmission gear to rotate synchronously and drive the reference toothed plate to move downward. Since there is a diameter difference between the first and second transmission gears, the downward distance of the moving toothed plate is less than the downward distance of the reference toothed plate, thus causing the reference plate to move downward and press down on the elastic sheet. The elastic sheet provides a greater resetting reverse pulling force, ensuring stable support for the wall panel. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2This is a side view of the right-angle plate installation according to the present invention.

[0017] Figure 3 This is a top view schematic diagram of the installation of the right-angle plate according to the present invention.

[0018] Figure 4 This is a schematic diagram of the connection hole assembly structure of the present invention.

[0019] Figure 5 This is a schematic diagram of the side structure of the assembly plate of the present invention.

[0020] Figure 6 This is a three-dimensional structural diagram of the mounting plate of the present invention.

[0021] Figure 7 This is a three-dimensional structural diagram of the positioning component of the present invention.

[0022] Figure 8 This is a three-dimensional structural diagram of the transmission component of the present invention.

[0023] Figure 9 This is a three-dimensional structural diagram of the mobile component of the present invention.

[0024] Figure 10 This is a schematic diagram showing the connection between the reference component and the moving component of the present invention.

[0025] The attached figures are labeled as follows: 1. Right-angle plate; 2. Wall panel; 21. Rectangular groove; 22. Positioning hole; 23. Slot; 3. Assembly plate; 31. Shim 1; 4. Mounting plate; 41. Shim 2; 5. Transmission assembly; 51. Bearing block; 52. Transmission gear 1; 53. Transmission gear 2; 6. Positioning assembly; 61. Positioning plate; 62. Slot; 7. Reference assembly; 71. Reference plate; 72. Reference block; 73. Reference toothed plate; 74. Elastic sheet; 8. Moving assembly; 81. Moving plate; 82. Horizontal column; 83. Moving toothed plate. Detailed Implementation

[0026] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0027] Refer to the instruction manual appendix Figures 1 to 7This is a dry connection node structure for prefabricated exterior wall panels suitable for extreme polar environments. It includes a right-angle plate 1 detachably mounted on the side of a wall panel 2. An assembly plate 3 is mounted on the right-angle plate 1. An installation plate 4 is mounted on the side of the right-angle plate 1 closest to the wall panel 2 via the assembly plate 3. The wall panel 2 and the installation plate 4 are connected by expansion bolts, and the wall panel 2 has connection hole components corresponding to the expansion bolts. The connection hole components include a rectangular groove 21, one end of which is connected to a positioning hole 22 for installing expansion bolts. A slot 23 is provided at the top of the rectangular groove 21. A positioning component 6 is movably mounted inside the rectangular groove 21. The positioning component 6 is connected to the assembly plate 3 via an elastic component. The positioning component 6 includes a positioning plate 61, on which a locking block 62 is fixed. The positioning plate 61 is movably mounted inside the rectangular groove 21, and the locking block 62 is positioned and engaged inside the slot 23.

[0028] It should be noted that the right-angle plate 1 is an L-shaped component, the wall panel 2 is a low-temperature resistant exterior wall panel, the assembly plate 3 is a concave component, which is fixed to the vertical plate of the right-angle plate 1 by screws. The assembly plate 3 is welded to the mounting plate 4. The connecting hole assembly is prefabricated at the factory or made by enlarging holes on site. The cross-section of the rectangular groove 21 is rectangular, and the width of the slot 23 is smaller than that of the rectangular groove 21.

[0029] In this embodiment, the specific implementation scenario is as follows: First, a connection hole assembly is made on the mounting surface of the wall panel 2. Generally, the wall panel 2 comes with a positioning hole 22 for connecting expansion bolts. This solution can be achieved by customizing the connection hole assembly from the manufacturer, or by enlarging a rectangular groove 21 and a slot 23 from the end of the positioning hole 22 on-site to form a complete connection hole assembly. First, the expansion bolt is passed through the mounting plate 4 and driven into the positioning hole 22. At this time, the positioning plate 61 enters the rectangular groove 21 and is positioned above the expansion bolt. The locking block 62 is engaged with the interior of the positioning plate 61 to prevent sliding in the front-back, left-right, and right directions. Assemble the assembly plate 3 and the right-angle plate 1, and finally fix the right-angle plate 1 to the steel structure. It can be fixed by welding or screws. When the external temperature drops suddenly, causing the wall panel 2 material to shrink, the connecting hole assembly will expand due to shrinkage. When the expansion bolt and the positioning hole 22 become loose, the positioning assembly 6 will be moved upward slightly by the reset pull of the elastic component. The positioning plate 61 and the locking block 62 will temporarily support the rectangular groove 21 to prevent the wall panel 2 from losing its positioning and falling due to the loosening of the expansion bolt and the positioning hole 22. It is suitable for use in extreme polar environments.

[0030] Refer to the instruction manual appendix Figures 5 to 9 The elastic component includes a reference component 7, which includes a reference plate 71. A moving component 8 is provided between the positioning component 6 and the reference component 7. The moving component 8 includes a moving plate 81, and the two ends of the moving plate 81 are respectively positioned and connected to the reference plate 71 and the positioning plate 61.

[0031] It should be noted that the reference plate 71 and the assembly plate 3 are elastically connected, and the reference plate 71 can be an elastic component.

[0032] Refer to the instruction manual appendix Figures 8 to 10 A reference block 72 is provided between the reference plate 71 and the assembly plate 3, and the reference block 72 is positioned on the assembly plate 3 by screws. An elastic sheet 74 is connected between the reference plate 71 and the reference block 72.

[0033] It should be noted that at this time, the reference plate 71 is a rigid component, while the elastic sheet 74 is an elastic component.

[0034] Refer to the instruction manual appendix Figures 8 to 10 The movable plate 81 and the positioning component 6 are slidably connected by a cross column 82, and a transmission component 5 is provided between the movable plate 81 and the reference plate 71.

[0035] It should be noted that the transmission assembly 5 is mounted on the mounting plate 4.

[0036] Refer to the instruction manual appendix Figures 8 to 10 The transmission assembly 5 includes a bearing block 51, which is connected to a transmission gear 1 52 and a transmission gear 2 53 via a shaft. The diameter of the transmission gear 1 52 is larger than the diameter of the transmission gear 2 53.

[0037] It should be noted that transmission gear 1 52 and transmission gear 2 53 are coaxially connected, and transmission gear 1 52 is located at one end of transmission gear 2 53.

[0038] Refer to the instruction manual appendix Figures 8 to 10 The movable plate 81 is provided with a sliding groove, and a movable toothed plate 83 is slidably installed on the movable plate 81. The movable toothed plate 83 slides along the inside of the sliding groove, and the movable toothed plate 83 is fixedly connected to the cross column 82.

[0039] It should be noted that the movable plate 81 limits the vertical sliding of the movable toothed plate 83 through the slide groove, and the movable toothed plate 83 drives the positioning plate 61 to move vertically through the horizontal column 82.

[0040] Refer to the instruction manual appendix Figures 8 to 10 A reference toothed plate 73 is fixedly installed on one side of the reference plate 71. The reference toothed plate 73 meshes with the transmission gear 53 for transmission, and the movable toothed plate 83 meshes with the transmission gear 53 for transmission.

[0041] It should be noted that both the moving toothed plate 83 and the reference toothed plate 73 have racks on their meshing sides.

[0042] Refer to the instruction manual appendix Figures 1 to 7 A gasket 31 is provided between the right-angle plate 1 and the assembly plate 3, and a gasket 41 is provided between the right-angle plate 1 and the mounting plate 4.

[0043] It should be noted that gasket 31 and gasket 41 serve to fill gaps and prevent slippage.

[0044] In this embodiment, the specific implementation scenario is as follows: To enable the elastic component to pull the positioning assembly 6 upward by a small amount, two methods are adopted. The first method uses the reference assembly 7 as the elastic component, with the reference plate 71 directly employing an elastic member and directly connected to the positioning assembly 6. This method has low manufacturing costs, but the reverse pulling force is limited by the material of the reference plate 71. The second method uses the reference plate 71 as a rigid member, with the elastic sheet 74 providing elastic support and the transmission assembly 5 providing a transmission difference. When the positioning plate 61 is subjected to the downward force of the wall panel 2, the limiting effect of the moving plate 81 causes the positioning plate 61 to... The horizontal column 82 drives the movable toothed plate 83 to move vertically downward, thereby driving the transmission gear 53 to rotate. This allows the transmission gear 52 to rotate synchronously and drive the reference toothed plate 73 to move downward. Since there is a diameter difference between the transmission gear 52 and the transmission gear 53, the downward distance of the movable toothed plate 83 is less than the downward distance of the reference toothed plate 73. For example, if the movable toothed plate 83 moves downward by 1mm, the reference toothed plate 73 moves downward by 2mm through the transmission component 5, thereby causing the reference plate 71 to move downward and press down on the elastic plate 74. The elastic plate 74 provides a greater reset reverse pulling force to ensure stable support for the wall panel 2.

[0045] Working principle: First, make connection hole assembly on the mounting surface of wall panel 2, pass expansion bolts through mounting plate 4 and drive them into positioning hole 22.

[0046] Second, at this time, the positioning plate 61 enters the rectangular groove 21 and is located above the expansion bolt. The locking block 62 is locked into the interior of the positioning plate 61 to prevent sliding in the front, back and left and right directions.

[0047] 3. Assemble the assembly using assembly plate 3 and right-angle plate 1, and finally fix right-angle plate 1 to the steel structure.

[0048] 4. When the external ambient temperature drops suddenly, causing the wall panel 2 material to shrink, the positioning component 6 will be slightly displaced upward by the reset and counter-pull of the elastic component.

[0049] Fifth, by setting the reference plate 71 as a rigid component and providing a transmission difference through the transmission assembly 5, the elastic plate 74 provides a greater resetting reverse pulling force.

[0050] The above embodiments merely illustrate several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention.

Claims

1. A dry connection node structure of assembled outer wall panel suitable for polar extreme environment, comprising a right-angle plate (1) detachably installed on the side of a wall panel (2), an assembled plate (3) is installed on the right-angle plate (1), and an installation plate (4) is installed on the side of the right-angle plate (1) close to the wall panel (2) through the assembled plate (3), characterized in that: The wall panel (2) and the mounting plate (4) are installed together by expansion bolts, and the wall panel (2) is provided with a connection hole assembly at the expansion bolt position; ​ The connecting hole assembly includes a rectangular groove (21), one end of which is connected to a positioning hole (22), and the positioning hole (22) is used to install expansion bolts. The top of the rectangular groove (21) is provided with a slot (23). The rectangular groove (21) is movably provided with a positioning component (6). The positioning component (6) is connected to the assembly plate (3) through an elastic component. The positioning component (6) includes a positioning plate (61). A locking block (62) is fixedly provided on the positioning plate (61). The positioning plate (61) is movably provided inside the rectangular groove (21). The locking block (62) is positioned and locked inside the slot (23).

2. The dry connection joint structure of the fabricated exterior wall panel suitable for polar extreme environment according to claim 1, characterized in that: The elastic component includes a reference component (7), which includes a reference plate (71). A moving component (8) is provided between the positioning component (6) and the reference component (7). The moving component (8) includes a moving plate (81), and the two ends of the moving plate (81) are respectively positioned and connected to the reference plate (71) and the positioning plate (61).

3. The dry connection node structure of the fabricated exterior wall panel suitable for polar extreme environment according to claim 2, characterized in that: A reference block (72) is provided between the reference plate (71) and the assembly plate (3), and the reference block (72) is positioned on the assembly plate (3) by screws. An elastic sheet (74) is connected between the reference plate (71) and the reference block (72).

4. The dry connection node structure for prefabricated exterior wall panels suitable for extreme polar environments as described in claim 3, characterized in that: The movable plate (81) and the positioning component (6) are slidably connected by a cross column (82), and a transmission component (5) is provided between the movable plate (81) and the reference plate (71).

5. The prefabricated exterior wall panel dry connection node structure suitable for extreme polar environments according to claim 4, characterized in that: The transmission assembly (5) includes a bearing block (51), which is connected to a transmission gear one (52) and a transmission gear two (53) via a shaft. The diameter of the transmission gear one (52) is larger than the diameter of the transmission gear two (53).

6. The prefabricated exterior wall panel dry connection node structure suitable for extreme polar environments according to claim 5, characterized in that: The movable plate (81) is provided with a sliding groove, and a movable toothed plate (83) is slidably installed on the movable plate (81). The movable toothed plate (83) slides along the inside of the sliding groove, and the movable toothed plate (83) is fixedly connected to the cross column (82).

7. The dry connection node structure for prefabricated exterior wall panels suitable for extreme polar environments as described in claim 6, characterized in that: A reference toothed plate (73) is fixedly installed on one side of the reference plate (71). The reference toothed plate (73) meshes with the transmission gear two (53) for transmission, and the movable toothed plate (83) meshes with the transmission gear two (53) for transmission.

8. The prefabricated exterior wall panel dry connection node structure suitable for extreme polar environments according to claim 7, characterized in that: A gasket 1 (31) is provided between the right-angle plate (1) and the assembly plate (3), and a gasket 2 (41) is provided between the right-angle plate (1) and the mounting plate (4).

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