High wind resistant metal envelope system with double-sided fixed finite sliding support

Abstract

The utility model relates to the field of building roof and wall surface metal containment system discloses a high wind -resisting metal containment system of both sides fixed limited sliding support, including profiled roof panel, both sides fixed sliding support, S shape connecting fastener and limiting folding piece. The both ends of profiled roof panel are equipped with male buckle flanging and female buckle flanging, are connected through 360 degree mechanical coiling, the lower part of female buckle flanging is equipped with U -shaped recess, the outer convex part of female buckle flanging U -shaped recess is hung on the upper end of S shape connecting fastener, and the lower end is embedded in support sliding groove, and the tail end of sliding groove is equipped with limiting folding piece to prevent fastener from coming out. The both sides of support are fixed in purlin through self -tapping screw, realize the both sides support and limited sliding of roof panel, to adapt to thermal expansion and cold shrink and promote wind -resisting ability. The system structure is stable, and the sealing is good, is applicable to large -span steel structure building roof and wall surface, especially is suitable for typhoon area and the area of big temperature difference uses.

Description

Technical Field

[0001] This utility model relates to the field of metal enclosure systems for building roofs and walls, and in particular to a high wind-resistant metal enclosure system with double-sided fixed limited sliding supports. Background Technology

[0002] Among various building structural forms, the vast majority of large-span steel structure roofs utilize metal roofing systems for construction and installation to meet basic functional requirements such as waterproofing, wind uplift resistance, thermal insulation, and noise reduction. The metal roof panels used in these buildings employ diverse connection methods. Among them, the concealed-stud metal roofing system, due to its upright locking installation method, possesses reliable waterproofing and wind uplift resistance, leading to its increasing popularity and widespread application in large-span steel structure buildings such as airports, train stations, sports centers, and convention centers.

[0003] Currently, common standing seam metal roofing systems are mainly divided into two categories. One is the 270° standing seam metal roofing system, which has been widely used in various metal roof buildings after years of development. However, the interlocking method of this system has gaps. When encountering heavy rainfall, rainwater can easily overflow the standing seam and seep into the roof through the interlocking gaps, causing leakage problems. The other type is the 360° standing seam double-interlocking metal roofing system, whose standing seam has a double-interlocking structure. The two adjacent roof panels can achieve a more ideal sealing effect through secondary interlocking, so that leakage will not occur due to gaps between panels under heavy rain conditions.

[0004] However, most existing 360° vertical double-interlocking roofing systems use a single-sided fixed support structure. Under wind pressure, the roof panel experiences uneven stress on both sides, with the unsupported end being the weaker side, prone to lateral deformation. This problem not only reduces the overall wind uplift resistance of the metal roof but also affects its drainage function, thus shortening the service life of the roofing system. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of existing metal roof panel connection supports, such as uneven force distribution on one side, susceptibility to lateral deformation under strong winds, and weakened wind uplift resistance and drainage function. This invention provides a high wind uplift resistance metal roofing system with fixed, limited-sliding supports on both sides. By installing fixed supports with limited sliding function on both sides of the roof panel, the system allows the roof panel to withstand balanced force in both directions while adapting to length changes caused by thermal expansion and contraction along its length. This effectively improves the overall wind uplift resistance and structural stability of the roofing system and extends its service life.

[0006] To achieve the above objectives, the technical solution of this utility model is: a high wind-resistant metal enclosure system with double-sided fixed sliding supports, characterized in that: it includes a profiled roof panel, double-sided fixed sliding supports, S-shaped connecting fasteners, and limiting folding pieces; characterized in that: the two ends of the profiled roof panel are respectively provided with male and female buckle folding edges, and adjacent profiled roof panels are connected by the male and female buckle folding edges and then mechanically rolled together at 360°; the upper part of the double-sided fixed sliding support cooperates with the S-shaped connecting fastener, the upper end of the S-shaped connecting fastener is hooked onto the U-shaped groove of the female buckle folding edge, and the lower end is embedded in the sliding groove of the sliding support, and the end of the sliding groove is closed by the limiting folding pieces. Attached Figure Description

[0007] Figure 1 This is a three-dimensional structural diagram of the overall installation method of the profiled roof panel of this utility model; Figure 2 This is a three-dimensional exploded view of the installation method of this utility model; Figure 3 This is a cross-sectional structural diagram of the installation method of this utility model; Figure 4 for Figure 3 Enlarged view at point A; Figure 5 This is an exploded cross-sectional view of the medium-pressure roof panel and its components according to this utility model. Figure 6 for Figure 5 Enlarged view at point -B; Figure 7 This is a structural schematic diagram of the profiled roof panel of this utility model; Figure 8 This is a longitudinal cross-sectional structural diagram of the installation method in this utility model.

[0008] In the diagram: 1. Profiled roof panel; 1-1. Panel reinforcing rib; 1-2. Male buckle fold; 1-2-1. 1T bend; 1-2-2. Vertical edge; 1-3. Female buckle fold; 1-3-1. 2T bend; 1-3-2. Concave vertical edge; 1-3-3. U-shaped groove; 2. Double-sided fixed sliding support; 3. S-shaped connecting fastener; 4. Limiting fold; 5. Self-tapping screw; 6. Rivet. Detailed Implementation

[0009] To facilitate a clear understanding of the technical means, inventive features, objectives, and effects of this utility model, the following description, in conjunction with specific embodiments and accompanying drawings, further illustrates the present utility model. It should be understood that the following embodiments are merely illustrative of the present utility model and are not intended to limit the scope of protection. Other implementation methods obtained based on the following embodiments, as long as they do not depart from the spirit and essence of the present utility model, should be covered within the scope of protection of the present utility model.

[0010] like Figures 1 to 8 As shown, this utility model relates to a high wind-resistant metal enclosure system with double-sided fixed sliding supports, including a profiled roof panel 1, double-sided fixed sliding supports 2, S-shaped connecting fasteners 3, and limiting folding parts 4.

[0011] The profiled roof panel 1 is the main component of the system. Multiple profiled roof panels of the same specification are interlocked and cooperate with the double-sided fixed sliding supports 2 to achieve reliable fixation of the roof support structure. Each profiled roof panel 1 has male snap-fit ​​flanges 1-2 and female snap-fit ​​flanges 1-3 at both ends. Adjacent panels are connected by these two types of flanges and finally mechanically rolled up 360° by a special locking device to form a sealed and stable connection structure.

[0012] The double-sided fixed sliding support 2 is fixed to the roof purlin with self-tapping screws 5, and its upper part cooperates with the S-shaped connecting fastener 3. One end of the fastener is hooked into the U-shaped groove 1-3-3 of the profiled roof panel 1, and the other end is embedded in the sliding groove of the support, thereby realizing the double-sided support and limited sliding function of the roof panel. The end of the sliding groove is closed by the limiting fold 4 to prevent the fastener from falling out during sliding, and at the same time to enhance the structural strength of the groove.

[0013] The profiled roof panel 1 is formed in one step using a cold-bending process, ensuring panel shape accuracy and stability of the connection points. Multiple panel reinforcing ribs 1-1 are provided along the length of the panel. These reinforcing ribs have a convex cross-section and are preferably arranged in parallel at equal intervals to significantly improve the bending stiffness and overall load-bearing capacity of the panel. Under wind or snow loads, the reinforcing ribs can effectively disperse stress and reduce panel deflection.

[0014] The male buckle 1-2 is located at one end of the profiled roof panel, including the upper 1T bend 1-2-1 and the upright edge 1-2-2. The 1T bend 1-2-1 bends inward to form a clamping space for engaging with the 2T bend of the female buckle, while the upright edge 1-2-2 provides the vertical support surface after rolling.

[0015] The female buckle fold 1-3 is located at the other end of the profiled roof panel, including the upper 2T bend 1-3-1, the middle concave vertical edge 1-3-2, and the lower U-shaped groove 1-3-3. The shape of the 2T bend 1-3-1 matches that of the 1T bend 1-2-1, forming a double-layer metal interlocking interface after rolling, improving sealing and wind resistance. The concave vertical edge 1-3-2 provides space for the support connection, ensuring a stable fulcrum when the S-shaped fastener 3 is attached. The U-shaped groove 1-3-3 provides a reliable position for the upper end of the support fastener to engage.

[0016] During installation, adjacent profiled roof panels 1 are initially fastened together by the mechanical cooperation of male snap-fit ​​edge 1-2 and female snap-fit ​​edge 1-3, so that the 2T bending part 1-3-1 fits on top of the 1T bending part 1-2-1; then, a seam locking machine is used to roll them 360° along the length of the panel, so that the two form a metal nest in both the vertical and radial directions, ensuring that the connection does not loosen or leak water under wind load.

[0017] The double-sided fixed sliding support 2 is a long strip-shaped metal component, stamped from hot-dip galvanized steel sheet. The upper surface has a sliding groove running through the length direction. The vertical sidewalls on both sides of the sliding groove provide guidance and limiting functions for the S-shaped connecting fasteners 3. A row of fixing holes is opened on each side of the support for firmly fixing the support to the purlin with self-tapping screws 5.

[0018] The most significant feature of this support is that it is connected to the roof panels on both sides, forming a double-sided fixed structure. This ensures that both ends of adjacent roof panels are supported, avoiding the uneven stress and warping issues that occur with single-sided fixing. Furthermore, the sliding groove of the support runs longitudinally along the roof panel, allowing the S-shaped connecting fasteners to slide within it to accommodate length changes in the panels during thermal expansion and contraction.

[0019] The S-shaped fastener 3 is made of stainless steel plate with an "S"-shaped cross-section. The upper bent part is engaged with the outer protrusion of the U-shaped groove 1-3-3, and the lower end is embedded in the groove of the support sliding groove. The hook-shaped structure at the upper end of the fastener can securely hang the roof panel before rolling, preventing the panel from falling off during installation; the lower end is fitted with the sliding groove in a sliding connection, which can slide moderately in the longitudinal direction and withstand the pressure of wind load transmission in the vertical direction.

[0020] The advantage of this structure is that when the roof panel expands or contracts due to temperature changes, the fastener can move slightly along the length of the panel in the sliding groove, which can alleviate stress concentration caused by panel deformation and thus extend the service life of the locking structure and the panel.

[0021] The limiting folding piece 4 is installed at the end of the sliding groove of the support, preferably with a U-shaped cross-section, and is formed by bending galvanized steel plate. It serves two purposes: first, to prevent the S-shaped connecting fastener 3 from dislodging from the groove during sliding; and second, to enhance the deformation resistance of the end of the sliding groove, preventing the groove from opening due to repeated loading. The limiting folding piece 4 is firmly connected to the support by rivets 6, making installation simple and ensuring reliable strength.

[0022] The installation steps are as follows: First, based on the position of the roof purlins, arrange the double-sided fixed sliding supports 2 parallel to the purlins, with the sliding grooves of the supports facing the longitudinal direction of the roof panel. Use self-tapping screws 5 to pass through the fixing holes on both sides of the supports and tighten them onto the purlins to ensure that the supports are stable and do not shift.

[0023] Next, align the female buckle edge 1-3 of the first profiled roof panel 1 with the support position, insert the lower end of the S-shaped connecting fastener 3 along the sliding groove of the support, and simultaneously slide the upper end of the fastener into and engage it in the U-shaped groove 1-3-3 of the profiled roof panel 1. This simultaneous operation avoids interference problems caused by the slope of the concave vertical edge 1-3-2. The fastener should maintain a certain free sliding distance in the groove to meet the displacement requirements of temperature deformation.

[0024] Subsequently, after the fasteners are attached, the limiting folding piece 4 is immediately installed at the end of the support sliding groove and fixed with rivets 6 to prevent the fasteners from sliding out of the groove during subsequent construction or use.

[0025] Next, install the second profiled roof panel, aligning its female snap-fit ​​edge 1-3 with the male snap-fit ​​edge 1-2 of the first panel, and push it longitudinally to the fully engaged position. After ensuring that the 2T bend 1-3-1 covers the outside of the 1T bend 1-2-1, use a special edge-locking device to mechanically roll it up 360°, so that the two panels are completely sealed and connected longitudinally.

[0026] Repeat the above steps to install subsequent panels in sequence until the entire roof is laid.

[0027] This system relies on the cooperation of double-sided fixed sliding supports 2 and S-shaped connecting fasteners 3 to ensure reliable support at both ends of each roof panel, thereby improving overall lateral stability and wind uplift resistance. When encountering strong winds, both sides of the supports simultaneously bear the upward force and downward pressure, avoiding warping of the panels caused by unilateral fixation.

[0028] In environments with significant temperature variations, the S-shaped connecting fastener 3 can slide within a limited range along the support sliding groove, thereby absorbing the longitudinal thermal expansion and contraction displacement of the roof panel and preventing the seam structure from cracking or loosening due to stress concentration. Simultaneously, the 360° double-interlocking seam structure ensures the sealing and water-resistant properties of the connection, effectively preventing rainwater infiltration even during heavy rain and typhoons.

[0029] This invention is applicable to large-span steel structure roofing and wall systems, and is particularly effective in coastal typhoon areas and high-altitude regions with large diurnal temperature variations. The materials of the double-sided fixed sliding supports 2 and the limiting folding parts 4 can be selected from different specifications of galvanized steel or stainless steel according to the usage environment; the number and cross-sectional shape of the panel reinforcing ribs 1-1 can also be adjusted to adapt to different load and drainage requirements.

Claims

1. A high wind-resistant metal enclosure system with double-sided fixed limited sliding supports, characterized in that: The invention includes a profiled roof panel (1), a double-sided fixed sliding support (2), an S-shaped connecting fastener (3), and a limiting folding piece (4). The invention is characterized in that: the profiled roof panel (1) has a male fastening fold (1-2) and a female fastening fold (1-3) at both ends, and adjacent profiled roof panels (1) are fastened together by the male fastening fold (1-2) and the female fastening fold (1-3) and connected by 360° mechanical rolling; the upper part of the double-sided fixed sliding support (2) cooperates with the S-shaped connecting fastener (3), the upper end of the S-shaped connecting fastener (3) is hooked to the U-shaped groove of the female fastening fold (1-3), and the lower end is embedded in the sliding groove of the sliding support (2), and the end of the sliding groove is closed by the limiting folding piece (4).

2. The high wind-resistant metal enclosure system with double-sided fixed limited sliding supports according to claim 1, characterized in that: The profiled roof panel (1) has multiple panel reinforcing ribs (1-1) along its length.

3. The high wind-resistant metal enclosure system with double-sided fixed limited sliding supports according to claim 1, characterized in that: The male buckle fold (1-2) includes a 1T bent portion (1-2-1) and a vertical edge (1-2-2); the female buckle fold (1-3) includes a 2T bent portion (1-3-1), an inwardly concave vertical edge (1-3-2), and a U-shaped groove (1-3-3).

4. The high wind-resistant metal enclosure system with double-sided fixed limited sliding supports according to claim 1, characterized in that: The double-sided fixed sliding support (2) is a long strip metal component with a sliding groove running through its upper surface along the length direction. The vertical sidewalls on both sides of the sliding groove are used to guide and limit the S-shaped connecting fastener (3).

5. The high wind-resistant metal enclosure system with double-sided fixed limited sliding supports according to claim 1, characterized in that: The double-sided fixed sliding support (2) has multiple rows of fixing holes on both sides, which are used to firmly fix the sliding support (2) to the roof purlin with self-tapping screws (5), thereby forming a double-sided support for two adjacent profiled roof panels (1).

6. The high wind-resistant metal enclosure system with double-sided fixed limited sliding supports according to claim 3, characterized in that: The S-shaped fastener (3) is made of stainless steel plate with an S-shaped cross-section. The upper end is a hook structure for hanging on the U-shaped groove (1-3-3) of the female buckle fold (1-3). The lower end is embedded in the sliding groove of the sliding support (2) to achieve limited sliding connection.

7. The high wind-resistant metal enclosure system with double-sided fixed limited sliding supports according to claim 1, characterized in that: The S-shaped fastener (3) can make a slight displacement in the sliding groove in the longitudinal direction to absorb the length change of the profiled roof panel (1) caused by thermal expansion and contraction, and avoid stress concentration at the locking edge.

8. The high wind-resistant metal enclosure system with double-sided fixed limited sliding supports according to claim 1, characterized in that: The limiting folding piece (4) is installed at the end of the sliding groove of the sliding support (2), and has a U-shaped cross section. It is used to close the opening of the sliding groove and prevent the S-shaped connecting fastener (3) from coming out during the sliding process.

9. The high wind-resistant metal enclosure system with double-sided fixed limited sliding supports according to claim 7, characterized in that: The double-sided fixed sliding support (2) is fixed to the roof purlin by self-tapping screws (5), and the limiting folding piece (4) is connected to the sliding support (2) by rivets (6) to enhance the deformation resistance of the sliding groove end.

10. The high wind-resistant metal enclosure system with double-sided fixed limited sliding supports according to claim 1, characterized in that: The profiled roof panel (1) is formed in one step by cold bending forming process, and a double-layer metal interlocking interface is formed by 360° rolling of adjacent male buckle folds (1-2) and female buckle folds (1-3) to improve sealing and wind uplift resistance.

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