Metal roof system with sliding groove type non-telescopic limiting constraint

By introducing a grooved, non-expansion limit constraint into the metal roofing system, the ultra-long metal roof panel achieves unlimited expansion and contraction and dual waterproofing functions, solving the problems of insufficient temperature stress release and waterproofing and wind resistance, and improving the structural safety and waterproofing performance of the roof panel.

CN223767054UActive Publication Date: 2026-01-06ZHEJIANG ZHUODING GREEN ENERGY TECH CO LTD
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Patent Information

Application Number
CN202520140115.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-21
Publication Date
2026-01-06
Estimated Expiration
2035-01-21

AI Technical Summary

Technical Problem

Existing metal roofing systems have shortcomings in terms of temperature stress release and waterproof and wind resistance performance for ultra-long roof panels. Fixed supports are prone to loosening or wear of the locking joints, and the sliding limit supports have high sliding resistance and are not suitable for longer roof panels.

Method used

The metal roofing system adopts a groove-type, non-extension-limiting constraint. By setting an extendable sliding connection between the metal roof panel and the support, and using horizontal grooves and sliding gaps to form an inverted L-shaped or T-shaped cavity, combined with edge locking and welding technology, the metal roof panel can achieve unlimited extension and contraction and double waterproofing functions.

Benefits of technology

It enables unlimited expansion and contraction of ultra-long metal roof panels, improves waterproof performance and wind resistance, solves the problem of structural damage caused by temperature stress, and ensures the structural safety and airtight and watertight performance of the roof panels.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a metal roofing system with a sliding groove type non-telescopic limiting constraint, which comprises metal roofing board bodies and roofing board supports, the side edges of the two metal roofing board bodies are connected with each other to form a metal roofing board, the roofing board supports are fixedly connected with roof steel purlins, the metal roofing board is provided with a horizontal groove, and the horizontal groove is fixedly connected with the roofing steel purlins. The roof board support is provided with a horizontal connecting plate, the metal roof board wraps the outer side of the roof board support, the horizontal connecting plate is arranged in the horizontal groove, and the metal roof board and the roof board support are connected in a telescopic sliding mode. According to the utility model, the super-long metal roofing board can be arranged in a non-segmented and non-lapped manner, so that the waterproof performance of the super-long metal roofing board is improved; the temperature stress of the super-long metal roof board is completely released due to extreme temperature difference, the problem of structural damage of roof support connection and roof seaming caused by the temperature stress is solved, and the structural safety of the super-long metal roof board is achieved.
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Description

Technical Field

[0001] This utility model relates to the field of building technology, specifically to a metal roofing system with a sliding groove and no telescopic limit constraint. Background Technology

[0002] Metal roofing is mainly used in large, long-span public buildings such as airports, convention centers, and stadiums, as well as industrial buildings. Metal roof panels are generally arranged longitudinally along the drainage direction. The length of roof panels on large roofs is generally 20 to 50 meters, and some large public buildings even have roof panels that are over 100 meters long. Due to the large temperature difference in the environment where metal roofs are used, the roof panels need to be able to expand and contract freely along their length to ensure the release of temperature stress. The roof panels are connected to the roof supports using interlocking or rolled edge locking methods. Therefore, the connection and expansion and contraction between the roof panels and the roof supports are key technologies and specifications for roof waterproofing and wind resistance.

[0003] Existing metal roofing systems typically address roof panel expansion and contraction issues using fixed supports or limited sliding supports. Fixed supports rely on rigid frictional expansion and contraction between the upper end of the support and the roof panel's interlocking joint to relieve temperature stress. However, long-term friction can easily lead to loosening of the interlocking joints or wear and damage to the ribs, causing the roof's waterproofing and wind resistance to fail. Limited sliding supports use two slotted metal sheets to achieve limited sliding, but the support itself has significant sliding resistance and limited sliding range, making it unsuitable for long roof panels. Therefore, research into technologies that adapt to the temperature stress release of ultra-long roof panels to improve the waterproofing and wind resistance of large roofs and ensure project quality is a key research direction. Utility Model Content

[0004] This invention provides a metal roofing system with a grooved, non-extensible limiting constraint, which allows two adjacent extra-long roof panels to be arranged as a whole without segmentation or overlap, thereby improving the waterproof performance of the extra-long metal roof panels.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A metal roofing system with a sliding groove and no telescopic limit constraint includes a metal roof panel body and a roof panel support. Two metal roof panel bodies are connected side by side to form a metal roof panel. The roof panel support is fixedly connected to the roof steel purlin. The metal roof panel has a horizontal groove. The roof panel support has a horizontal connecting plate. The metal roof panel covers the outside of the roof panel support. The horizontal connecting plate is located in the horizontal groove. The metal roof panel and the roof panel support are telescopically sliding connected.

[0007] As a preferred embodiment of this utility model, the metal roof panel body is provided with male ribs and female ribs on both sides respectively. The male ribs are provided with a horizontal groove in the middle, or both the male and female ribs are provided with horizontal grooves in the middle. The male and female ribs of the two metal roof panel bodies are connected to each other. The male ribs above the horizontal grooves are closely connected to the female ribs. The male ribs below the horizontal grooves are provided with a sliding gap between the male and female ribs. The horizontal grooves and the sliding gaps form an inverted L-shaped or T-shaped cavity. The male and female ribs expand outward from the sliding gaps to form a flared mouth. One end of the roof panel support is fixedly connected to the roof steel purlin, and the other end extends into the inverted L-shaped or T-shaped cavity and into the horizontal groove.

[0008] As a preferred embodiment of this utility model, the roof panel support includes a base plate, a web plate, and a horizontal connecting plate. The base plate is located at the bottom of the horn-shaped cavity and is fixedly connected to the roof steel purlin. One end of the web plate is connected to the base plate, and the other end extends into an inverted L-shaped or T-shaped cavity and is provided with a horizontal connecting plate that mates with a horizontal groove. The horizontal connecting plate is provided on one side of the web plate or on both sides of the web plate. The middle of the web plate of the roof panel support is also provided with an outwardly extending middle connecting plate. The middle connecting plate is provided on one side of the web plate or on both sides of the web plate. The middle connecting plate is close to the top of the horn-shaped cavity. Vertical stiffening plates are provided on both sides of the web plate or the base plate. The central connecting plate of this design provides additional support for the metal roof panel and ensures that there is a gap between the horizontal connecting plate and the horizontal groove of the roof panel support, so that there will be no large friction due to gravity. The bottom plate and the web plate are perpendicular to each other, but the combined strength of the two is insufficient. After adding the vertical stiffening plate, the vertical stiffening plate connects and fixes the bottom plate and the web plate together, which greatly increases the structural strength and improves the wind pressure resistance of the metal roof panel.

[0009] As a preferred embodiment of this utility model, the metal roof panel body is formed by pressing a metal plate with a thickness of 0.5 mm to 0.8 mm, and the roof panel support is formed by pressing a metal plate with a thickness of 1 mm to 3 mm.

[0010] In a preferred embodiment of this invention, the roof panel support base plate is fixedly connected to the roof steel purlins via a base plate pad. In this embodiment, the base plate pad covers the outer side of the base plate and is made of different materials, such as insulating materials, to protect the roof panel support.

[0011] In a preferred embodiment of this invention, the male and female ribs located above the horizontal groove are connected by a locking edge or by locking edge plus welding, wherein the locking edge includes 180-degree locking edge and 360-degree locking edge. This solution employs a dual waterproofing technology of rolled edge locking and welding for the connection of the metal roof panel ribs, enabling the metal roof panel to have both airtight and watertight functions.

[0012] In this scheme, multiple roof panel supports are used to support the metal roof panel. When the metal roof panel expands and contracts due to heat, since the horizontal connecting plate of the roof panel support and the horizontal groove of the metal roof panel are telescopically slidably connected, the roof panel support only supports the metal roof panel and has no constraint in the length direction of the metal roof panel. Therefore, the metal roof panel can expand and contract indefinitely along the horizontal connecting plates of the multiple roof panel supports.

[0013] In this design, the metal roof panels are manufactured by cold-pressing thin metal sheets. The male and female ribs of the metal roof panels are fixedly connected by 180-degree locking, 360-degree locking, or welding. Welding of the metal roof panels refers to the continuous welding connection of the male and female ribs of two adjacent metal roof panels along their entire length. The materials of the metal roof panels are various metal sheets such as 0.5mm-0.8mm thick steel plates, stainless steel plates, aluminum plates, titanium-zinc plates, and copper plates. The materials of the roof panel supports can be various metal sheets such as 1mm-3mm thick steel plates, stainless steel plates, aluminum plates, titanium-zinc plates, and copper plates.

[0014] Compared with existing technologies, the beneficial effects of this utility model are: it enables the ultra-long roof panels to be arranged as a whole without segmentation or overlap, thus improving the waterproof performance of ultra-long metal roof panels; it achieves complete release of temperature stress caused by extreme temperature differences in ultra-long metal roof panels, solving the problem of structural damage to roof support connections and roof seams caused by temperature stress, and realizing the structural safety of ultra-long metal roof panels; it realizes the function of dual waterproof technology of edge rolling and welding of metal roof panels, giving metal roof panels both airtight and watertight functions. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0017] Figure 3 This is a schematic diagram of the structure of the metal roof panel body of this utility model.

[0018] Figure 4 This is another structural schematic diagram of the metal roof panel body of this utility model.

[0019] Figure 5 This is a structural schematic diagram of a roof panel support according to the present invention.

[0020] Figure 6 This is a schematic diagram of another structure of the roof panel support of this utility model.

[0021] Figure 7 This is the cross-section of the connection structure of this utility model. Figure 1 .

[0022] Figure 8 This is the cross-section of the connection structure of this utility model. Figure 2 .

[0023] Figure 9 This is the cross-section of the connection structure of this utility model. Figure 3 .

[0024] Figure 10 This is the cross-section of the connection structure of this utility model. Figure 4 .

[0025] Figure 11 This is the cross-section of the connection structure of this utility model. Figure 5 .

[0026] Figure 12 This is the cross-section of the connection structure of this utility model. Figure 6 .

[0027] Figure 13 This is a schematic diagram of a T-shaped cavity according to the present invention.

[0028] Figure 14 This is a schematic diagram of an inverted L-shaped cavity according to the present invention.

[0029] Figure 15 This is a structural schematic diagram of the roof panel support with double-sided horizontal connection of this utility model.

[0030] Figure 16 This is a structural schematic diagram of the vertical stiffening roof panel support of this utility model.

[0031] Figure 17 This is the cross-section of the connecting structure of this utility model. Figure 7 .

[0032] Figure 18 This is the cross-section of the connecting structure of this utility model. Figure 8 .

[0033] In the diagram: 1. Roof steel purlin; 2. Metal roof panel body; 3. Roof panel support.

[0034] 4. Screws; 5. Base plate gaskets; 21. Horizontal grooves; 22. Male plate ribs.

[0035] 23. Mother plate rib; 24. Sliding clearance; 25. Horn mouth.

[0036] 31. Horizontal connecting plate; 32. Middle connecting plate; 33. Base plate

[0037] 34. Web plate 35. Vertical stiffening plate. Detailed Implementation

[0038] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, and several embodiments of the utility model will be provided. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and complete.

[0039] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0041] Please see Figure 1-18 This utility model provides a technical solution:

[0042] A metal roofing system with a sliding groove and no telescopic limit constraint includes a metal roof panel body 2 and a roof panel support 3. Two metal roof panel bodies 1 are connected to each other on their sides to form a metal roof panel. The roof panel support 3 is fixedly connected to the roof steel purlin 1. The metal roof panel is provided with a horizontal groove 21. The roof panel support 3 is provided with a horizontal connecting plate 31. The metal roof panel covers the outside of the roof panel support 3. The horizontal connecting plate 31 is located in the horizontal groove 21. The metal roof panel and the roof panel support 3 are telescopically sliding connected.

[0043] The metal roof panel body 2 has male ribs 22 and female ribs 23 on both sides. The male rib 22 has a horizontal groove 21 in the middle, or both the male rib 22 and the female rib 23 have horizontal grooves 21 in the middle. The male ribs 22 and female ribs 23 of the two metal roof panel bodies 2 are connected to each other. The male rib 22 above the horizontal groove 21 is closely connected to the female rib 23. The male rib 22 below the horizontal groove 21 is connected to the female rib 23 through a sliding gap 24. The horizontal groove 21 and the sliding gap 24 form an inverted L-shaped or T-shaped cavity. The male rib 22 and the female rib 23 expand outward from the sliding gap 24 to form a flared mouth 25. One end of the roof panel support 3 is fixedly connected to the roof steel purlin 1, and the other end extends into the inverted L-shaped or T-shaped cavity and into the horizontal groove 21.

[0044] The roof panel support 3 includes a base plate 33, a web plate 34, and a horizontal connecting plate 31. The base plate 33 is located at the bottom of the horn-shaped cavity 25 and is fixedly connected to the roof steel purlin 1. One end of the web plate 34 is connected to the base plate 33, and the other end extends into the inverted L-shaped or T-shaped cavity and is provided with a horizontal connecting plate 31 that cooperates with the horizontal groove 21. The horizontal connecting plate 31 is provided on one side or on both sides. The web plate 34 of the roof panel support 3 has an outwardly extending central connecting plate 32. The central connecting plate 32 is provided on one side or on both sides of the web plate 34. The central connecting plate 32 is close to the top of the horn-shaped cavity 25. Vertical stiffening plates 35 are provided on both sides of the web plate 34 or the base plate 33.

[0045] The metal roof panel body 2 is formed by pressing a metal sheet with a thickness of 0.5 mm to 0.8 mm, and the roof panel support 3 is formed by pressing a metal sheet with a thickness of 1 mm to 3 mm.

[0046] The roof panel support 3 base plate 33 is fixedly connected to the roof steel purlin 1 by screws 4 through the base plate pad 5.

[0047] The male plate rib 22 located above the horizontal groove 21 and the female plate rib 23 are connected by locking or by locking and welding. The locking includes 180-degree locking and 360-degree locking.

[0048] The working process of this utility model is as follows: First, the roof panel support 3 is fixedly connected to the roof steel purlin 1 using screws 4. Then, a metal roof panel body 2 is fastened to the roof panel support 3. Next, another metal roof panel body 2 is fastened to the roof panel support 3 and the previous metal roof panel body 2. Then, the two metal roof panel bodies 2 are welded together using a process to form a continuous fixed weld. Finally, the two metal roof panel bodies 2 are connected using a 180-degree or 360-degree locking edge process.

[0049] When the metal roof panel expands and contracts due to heat, there is no constraint in the length direction of the metal roof panel, so the metal roof panel can expand and contract indefinitely along the horizontal connecting plates 31 of multiple roof panel supports 3.

[0050] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A metal roof system with a sliding chute type non-stretching limiting restraint, characterized in that: The utility model relates to a metal roof panel structure, which comprises a metal roof panel body, a roof panel support, two metal roof panel bodies connected with each other at the side edges to form a metal roof panel, the roof panel support is fixedly connected with a roof steel purlin, the metal roof panel is provided with a horizontal groove, the roof panel support is provided with a horizontal connecting plate, the metal roof panel is wrapped outside the roof panel support, the horizontal connecting plate is arranged in the horizontal groove, and the metal roof panel and the roof panel support are connected through telescopic sliding.

2. The metal roof system with the sliding chute type non-stretching limiting constraint according to claim 1, characterized in that: The metal roof panel body is provided with a male rib and a female rib on each side, and the male rib is provided with a horizontal groove in the middle or the male rib and the female rib are both provided with a horizontal groove in the middle; The male rib and the female rib of the two metal roof panel bodies are connected correspondingly, the male rib and the female rib above the horizontal groove are connected tightly with each other, the male rib and the female rib below the horizontal groove are provided with a sliding gap, the horizontal groove and the sliding gap form an inverted L-shaped or T-shaped cavity, the male rib and the female rib below the sliding gap expand outward to form a horn cavity, one end of the roof panel support is fixedly connected with the roof steel purlin, and the other end extends into the inverted L-shaped or T-shaped cavity and the horizontal groove.

3. The metal roof system with the sliding chute type non-retractable limiting restraint according to claim 1, characterized in that: The roof panel support comprises a bottom plate, a web and a horizontal connecting plate, the bottom plate is arranged at the bottom of the horn cavity and is fixedly connected with the roof steel purlin, one end of the web is connected with the bottom plate, and the other end extends into the inverted L-shaped or T-shaped cavity and is provided with a horizontal connecting plate matched with the horizontal groove, the horizontal connecting plate is arranged on one side of the web or on both sides of the web, a middle connecting plate extending outward is further arranged in the middle of the web, the middle connecting plate is arranged on one side of the web or on both sides of the web, the middle connecting plate is tightly connected with the top of the horn cavity, and vertical stiffening plates are arranged on both sides of the web or the bottom plate.

4. The metal roof system with the sliding chute type non-stretching limiting constraint according to claim 1 or 2, characterized in that: The metal roof panel body is formed by pressing a metal plate with a thickness of 0.5 mm to 0.8 mm, and the roof panel support is formed by pressing a metal plate with a thickness of 1 mm to 3 mm.

5. The metal roof system with the sliding chute type non-stretching limiting constraint according to claim 3, characterized in that: The bottom plate of the roof panel support is fixedly connected with the roof steel purlin through a bottom plate gasket.

6. The metal roof system with the sliding chute type non-retractable limiting restraint according to claim 2, characterized in that: The male rib and the female rib above the horizontal groove are fixedly connected through edge locking or edge locking and welding, and the edge locking comprises 180-degree edge locking and 360-degree edge locking.