Triple-locking metal roof system

The triple-locking metal roofing system utilizes hooks and pins connected and welded to the fixing brackets to form a 360-degree interlocking fixation, which solves the shortcomings of existing metal roofing systems in terms of resistance to negative pressure and adaptability to thermal expansion and contraction, and achieves improved wind resistance and waterproof performance, making it suitable for large roofs.

CN121161983APending Publication Date: 2025-12-19MCC (SHANGHAI) STEEL STRUCTURE TECHNOLOGY CORP LTD
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Patent Information

Application Number
CN202511682409.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-11-17
Publication Date
2025-12-19

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Abstract

The invention discloses a triple locking metal roof system which comprises a metal roof board, a fixing support and hook pieces, the hook pieces comprise the upper hook piece and the lower hook piece, the fixing support is provided with a pin groove, the lower end of the lower hook piece is connected with a pin shaft, the pin shaft is installed at the pin groove, and the two sides of the bottom of the fixing support are connected with a main body structure through fasteners. The metal roof panel comprises a panel body, a male rib, a female rib and buckling grooves, the two sides of the panel body are connected with the male rib and the female rib through the buckling grooves, and the male rib and the female rib are welded to the upper hook piece. According to the roof system, the waterproof performance is guaranteed, the negative pressure resistance is improved, the thermal expansion and cold contraction amount is larger, and the roof system is more suitable for being applied to large roofs.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of metal roof, more particularly to a triple locking metal roof system. BACKGROUND

[0002] The common bite mode between the metal roof panel and the fixed support is the buckle type and the standing seam type, and the standing seam type is commonly 270-degree standing seam and 360-degree standing seam. The buckle type makes the roof panel into a shape with a buckle groove, and the fixed support has a corresponding hook, so that the buckle groove of the roof panel is buckled into the hook, thereby achieving the connection between the roof panel and the support. This way is quick to connect, but the negative pressure resistance is not as good as the standing seam way. The fixed support of the 270-degree standing seam is usually in the shape of "plum blossom" at the top, and the material is aluminum alloy, and the support is hard. The 270-degree standing seam roof panel forms a tight wrapping structure with the support through the 270-degree wrapping buckle process (automatic bite machine operation), forming a "U" type or "L" type structure, thereby achieving the connection between the roof panel and the support. This way is weaker than the 360-degree standing seam way in terms of negative pressure resistance, but the support is hard, and the connection with the lock clip is more secure. The 360-degree standing seam fixed support is composed of an upper hook piece and a lower base, and the material is usually galvanized sheet or stainless steel, and the component is thin and soft and can be mechanically rolled. The 360-degree standing seam wraps the roof panel and the support 360 degrees around (automatic bite machine operation), forming a tight fixing system, which is especially suitable for longitudinal super-long large-span roofs and can effectively cope with the deformation pressure caused by temperature changes. This way has better negative pressure resistance and can be converted into a welded stainless steel roof system by welding the panel ribs, but the connection with the upper lock clip is not secure enough. SUMMARY

[0003] In view of the problems in the prior art, the purpose of the present application is to provide a triple locking metal roof system, which not only ensures the waterproof performance but also improves the negative pressure resistance, has a larger thermal expansion and cold shrinkage, and is more suitable for application in large roofs.

[0004] The present application adopts the following technical solutions:

[0005] The triple locking metal roof system comprises a metal roof panel, a fixed support and a hook piece, the hook piece comprises an upper hook piece and a lower hook piece, the fixed support is provided with a pin groove, the lower end of the lower hook piece is connected with a pin shaft, the pin shaft is installed at the pin groove, the bottom of the fixed support is connected with the main body structure through fasteners on both sides, the metal roof panel comprises a panel body, a male rib, a female rib and a buckle groove, the panel body is connected with the male rib and the female rib through the buckle groove on both sides, and the male rib and the female rib are welded with the upper hook piece.

[0006] Further, the fixing support comprises a support plate, a vertical plate, a fork-shaped table and a baffle, the vertical plate is installed at the middle of the upper end of the support plate, the fork-shaped table is installed at the top of the vertical plate, two baffles are installed at the fork-shaped table respectively, the lower side of the two baffles and the fork-shaped table form a pin slot, and the lower hook piece passes through the gap between the two baffles.

[0007] Further, the top of the fork-shaped table is provided with a lock hook, the front end of the lock hook is inclined downward, and the buckle slot is attached to the front end of the lock hook.

[0008] Further, the material of the pin shaft is nylon or aluminum alloy.

[0009] Further, when the material of the pin shaft is nylon, the pin shaft and the lower hook piece are cast as a whole.

[0010] Further, when the material of the pin shaft is aluminum alloy, the pin shaft and the lower hook piece are connected as a whole.

[0011] Further, the top of the male rib, the female rib and the upper hook piece is bent downward, finally forming 360-degree occlusion fixation.

[0012] Further, the installation process is as follows:

[0013] The connecting body of the hook piece and the pin shaft is inserted into the pin slot from the side, and the pin shaft is limited to form a whole with the fixing support;

[0014] The fixing support and the main body structure are connected by using fasteners;

[0015] The metal flat plate is pressed into a metal roof panel by a corresponding forming machine roller, the male rib of the metal roof panel is placed below the upper hook piece, then the metal roof buckle slot is extruded towards the lock hook, and then it is bounced into the side of the lock hook to form mechanical occlusion;

[0016] The female rib of the metal roof panel is placed on the upper part of the upper hook piece, and the buckle slot is extruded and bounced into the side of the lock hook;

[0017] After the installation of the male rib and the female rib of the metal panel is completed, a full-automatic welding machine is used to weld the male rib and the female rib with the upper hook piece, and a through-length weld is formed after welding is completed.

[0018] After welding is completed, the edge of the panel is locked by using a manual or electric edge locking machine, the locking is performed from the top end of the panel downward, and finally 360-degree occlusion fixation is formed.

[0019] Beneficial effects

[0020] The three locking modes cooperate to greatly improve the negative pressure resistance and waterproof performance, and are suitable for strong wind areas and areas with high dynamic wind pressure requirements, especially for welding stainless steel roof.

[0021] The combination design of the fixed support and the stainless steel hook piece has the advantages of 270-degree and 360-degree standing edge locking supports, supports 360-degree hemming and plate rib welding, has high strength, is connected firmly with the upper part, has low cost, and is suitable for roofs with decorative plates, photovoltaic and other auxiliary structures.

[0022] The hook piece and the fixed support are connected through a pin shaft, and have a larger thermal expansion and contraction adaptation than a traditional structure, and can adapt to the temperature deformation requirement of large and longitudinally super-long large-span roofs. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is an embodiment schematic diagram of the present application;

[0024] Figure 2 It is a fixed support schematic diagram of an embodiment of the present application;

[0025] Figure 3 It is a public rib and female rib and hook piece welding schematic diagram of an embodiment of the present application;

[0026] Figure 4 It is a welded seam position schematic diagram of an embodiment of the present application;

[0027] Figure 5 It is a 360-degree occlusion schematic diagram of an embodiment of the present application;

[0028] Figure 6 It is a schematic diagram of another embodiment of the present application;

[0029] Figure 7 It is a schematic diagram of still another embodiment of the present application. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0031] The present application discloses a triple locking metal roof system, comprising a metal roof panel 2, a fixed support 3 and a hook piece 4, the hook piece 4 comprises an upper hook piece 41 and a lower hook piece 42, the fixed support 3 is provided with a pin groove 31, the lower end of the lower hook piece 42 is connected with a pin shaft 5, the pin shaft 5 is installed at the pin groove 31, the bottom of the fixed support 3 is connected with a main body structure 6 through a fastener 1 on both sides, the metal roof panel 2 comprises a panel body 21, a male rib 22, a female rib 23 and a buckle groove 24, both sides of the panel body 21 are connected with the male rib 22 and the female rib 23 through the buckle groove 24, and the male rib 22 and the female rib 23 are welded with the upper hook piece 41.

[0032] The design of the buckle groove 24 realizes the buckling connection of the metal roof panel 2 and the fixed support 3.

[0033] The public rib 22 and the female rib 23 are connected with the upper hook piece 41 by welding to realize welding.

[0034] The above is double locking.

[0035] When the above connection is completed, the panel edge is locked, and the locking is performed from the top end of the panel downward, finally forming a 360-degree bite fixation, realizing the third locking.

[0036] Through the three locking metal roof panels 2, the high wind resistance, high waterproofness and strong adaptability of the metal roof system are realized, which is suitable for various building scenes with strict requirements on roof performance.

[0037] The shape of the metal roof panel 2 has many kinds, such as Figure 6 and Figure 7 , and Figure 1 The difference between them is that the shape of the panel body 21 is different.

[0038] For the convenience of installation, the fastener 1 here is a self-tapping screw.

[0039] Further, the fixing support 3 includes a support plate 32, a vertical plate 33, a fork-shaped table 34 and a baffle 35, the vertical plate 33 is installed at the middle of the upper end of the support plate 32, the top of the vertical plate 33 is installed with the fork-shaped table 34, two baffles 35 are respectively installed at the fork-shaped table, the lower side of the two baffles 35 and the fork-shaped table 34 form a pin slot 31, and the lower hook piece 42 passes through the gap between the two baffles 35. When the metal roof panel 2 has only upward, the baffle 35 plays a limiting role. The pin slot 31 of the fixing support 3 plays a limiting role to the hook piece 4, and since the hook piece 4 is welded with the public rib 22 and the female rib 23, it indirectly plays a limiting role to the public rib 22 and the female rib 23.

[0040] Further, the top of the fork-shaped table 34 is provided with a lock hook 341, the front end of the lock hook 341 is inclined downward, and the buckle slot 24 is attached to the front end of the lock hook 341. The structure of the lock hook 341 is convenient for buckling.

[0041] Further, the material of the pin shaft 5 is nylon or aluminum alloy.

[0042] Further, when the material of the pin shaft 5 is nylon, the pin shaft 5 and the lower hook piece 42 are cast into one whole.

[0043] Further, when the material of the pin shaft 5 is aluminum alloy, the pin shaft 5 and the lower hook piece 42 are connected into one whole.

[0044] The material of the fixing support is aluminum alloy, and the material of the hook piece 4 is stainless steel.

[0045] Further, the top of the public rib 22, the female rib 23 and the upper hook piece 41 is bent downward, finally forming a 360-degree bite fixation.

[0046] Further, the installation process is as follows:

[0047] The connecting body of the hook piece 4 and the pin shaft 5 penetrates into the pin slot 31 from the side, and the pin shaft 5 is limited to form an integral body with the fixed support 3;

[0048] The self-tapping screw 1 is used to connect the fixed support 3 and the main body structure 6; the self-tapping screw 1 is used to stably install the fixed support 3.

[0049] The metal flat plate is pressed into a metal roof panel by a corresponding forming machine roller, the male rib of the metal roof panel is placed below the upper hook piece, then the metal roof buckle slot is extruded to the lock hook, and then is bounced into the side of the lock hook to form a mechanical bite;

[0050] The female rib of the metal roof panel is placed on the upper part of the upper hook piece, and the buckle slot is extruded and bounced into the side of the lock hook.

[0051] After the male rib and the female rib of the metal panel are installed, the full-automatic welding machine 7 is used to weld the male rib and the female rib and the upper hook piece, and after the welding is completed, the full-length weld 8 is formed, and the full-length weld 8 enhances the connection sealing property and stability;

[0052] The full-automatic welding equipment can be arranged on the roof, and the welding work can be directly carried out on the roof.

[0053] After the welding is completed, the edge of the panel is locked by a manual or electric edge locking machine, the locking is performed from the top end of the panel to the bottom, and finally 360-degree bite fixing is formed.

[0054] The above is only the preferred specific embodiment of the present application; however, the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacement or change according to the technical solution and the improvement concept of the present application within the technical range disclosed by the present application, and all of them should be covered in the protection scope of the present application.

Claims

1. A triple-locking metal roofing system, characterized in that: The system includes a metal roof panel, a fixing bracket, and hook pieces. The hook pieces include an upper hook piece and a lower hook piece. The fixing bracket has a pin groove. The lower end of the lower hook piece is connected to a pin shaft, which is installed in the pin groove. Both sides of the bottom of the fixing bracket are connected to the main structure by fasteners. The metal roof panel includes a panel body, a male rib, a female rib, and a fastening groove. Both sides of the panel body are connected to the male and female ribs through the fastening groove. The male and female ribs are welded to the upper hook piece.

2. The triple-locking metal roofing system according to claim 1, characterized in that: The fixed bracket includes a support plate, an upright plate, a fork-shaped platform, and baffles. The upright plate is installed at the upper middle of the support plate. The fork-shaped platform is installed on the top of the upright plate. Two baffles are installed on the fork-shaped platform respectively. The two baffles and the lower side of the fork-shaped platform form a pin groove. The lower hook plate passes through the gap between the two baffles.

3. The triple-locking metal roofing system according to claim 2, characterized in that: The top of the fork-shaped platform is equipped with a locking hook, the front end of which is tilted downwards and the buckle groove fits into the front end of the locking hook.

4. The triple-locking metal roofing system according to claim 1, characterized in that: The pin is made of nylon or aluminum alloy.

5. The triple-locking metal roofing system according to claim 4, characterized in that: When the pin is made of nylon, the pin and the lower hook plate are cast as a single unit.

6. The triple-locking metal roofing system according to claim 4, characterized in that: When the pin is made of aluminum alloy, the pin and the lower hook plate are wrapped together as one piece.

7. The triple-locking metal roofing system according to claim 1, characterized in that: The tops of the male rib, female rib, and upper hook plate are bent downwards to form a 360-degree interlocking fixation.

8. The triple-locking metal roofing system according to claim 1, characterized in that: The installation process is as follows: The connecting body of the hook and the pin passes into the pin groove from the side, and the pin is limited to form a whole with the fixed bracket; Use fasteners to connect the mounting bracket to the main structure; Metal sheets are rolled into metal roof panels by a corresponding forming machine. The male ribs of the metal roof panels are placed below the upper hook pieces. Then, the metal roof fastener grooves are pressed against the hooks and then spring into one side of the hooks to form a mechanical engagement. The female rib of the metal roof panel is placed on the upper part of the hook piece, and the buckle is pressed into the side of the hook in the same way; After the male and female ribs of the metal panel are installed, a fully automatic welding machine is used to weld the male and female ribs to the upper hook plate, forming a continuous weld after welding. After welding, use a manual or electric edge-locking machine to lock the edges of the panel. When locking the edges, start from the top of the panel and work downwards to form a 360-degree interlocking fixation.