Metal roof system

Abstract

The embodiment of the utility model discloses a metal roof system which comprises a support, the support comprises a supporting part and two hook parts located above the supporting part, the two hook parts are arranged back to back, and a containing space is formed between the hook parts; the two ends of the metal tile are each provided with a connecting part, and the connecting parts are suitable for extending into the containing space along the hook parts so that the metal tile can be connected with the support; and the buckling cover is suitable for covering the two hook parts, so that the buckling cover is connected with the support. The two metal tiles located on the two sides of the support are connected through the two back-to-back hook parts on the support, the hook parts of the support and the connecting parts of the metal tiles are wrapped by the buckle covers, locking edges are formed on the two back-to-back sides of the support respectively, and the wind uplift resistance of the metal roof system is improved.

Description

Technical Field

[0001] The present application relates to the technical field of photovoltaic module production, and in particular to a photovoltaic roofing system. Background Art

[0002] Building Integrated Photovoltaic (BIPV) uses photovoltaic modules as building components or building materials, making them part of the building and also having the function of generating electricity. BIPV can avoid occupying too much land resources, which is particularly important for urban buildings where land is expensive. BIPV converts solar energy into electrical energy, which can reduce the overall outdoor temperature, and at the same time can play a peak-shaving role in the power grid, achieving the effect of building energy saving. Laying a metal roofing system on the roof and then installing photovoltaic modules on the metal roofing system is a common form of building integrated photovoltaic.

[0003] However, the existing metal roof system connects the metal tiles to the boat-shaped support through upright locking edges. When the metal tiles are subjected to wind-lifting force, the metal tiles will tend to lift upward and act on the upright locking edges. Since the forces generated by the metal tiles on both sides of the upright locking edges are in the direction of twisting the upright locking edges, the metal tiles are easily lifted by the wind, which is not conducive to the overall wind-lifting resistance of the metal roof system and the photovoltaic modules installed on the metal roof system. Utility Model Content

[0004] One or more embodiments of the present application provide a metal roofing system having a high wind resistance performance, thereby reducing the risk of metal tiles being blown off by the wind.

[0005] One or more embodiments of the present application provide a metal roofing system, which adopts the following technical solution: a metal roofing system, comprising: a support, the support comprising a supporting portion and two hooks located above the supporting portion, the two hooks are arranged back to back, and a accommodating space is formed between the hooks; a metal tile, both ends of the metal tile are provided with a connecting portion, the connecting portion is suitable for extending along the hook into the accommodating space to connect the metal tile and the support; a buckle cover, the buckle cover is suitable for covering the two hooks to connect the buckle cover and the support.

[0006] In some embodiments, the hook portion includes a vertical rib and a hook edge, one end of the vertical rib is connected to the support portion and extends vertically upward from the support portion, the other end of the vertical rib is connected to the hook edge, the hook edge is located on the side of the vertical rib away from the other hook portion, and the accommodating space is formed between the vertical rib and the hook edge.

[0007] In some embodiments, the metal tile further includes a base, both ends of the base are provided with a connecting portion, and the base is suitable for supporting the connecting portion so that the connecting portion is accommodated in the accommodating space of the hook portion.

[0008] In some embodiments, the connecting portion includes a vertical edge and a connecting edge, the vertical edge is formed by bending the base upward and is suitable for fitting with the vertical rib, the end of the vertical edge is connected to the connecting edge, the connecting edge is located on the side of the vertical edge facing the other connecting portion, and the connecting edge is suitable for extending along the hook edge into the accommodating space to connect the metal tile and the support.

[0009] In some embodiments, the buckle cover further includes a main body portion, and a buckle portion is provided at both ends of the main body portion. The main body portion is suitable for covering the upper side of the hook portion, and the buckle portion is suitable for covering the outer side of the hook portion.

[0010] In some embodiments, the hook edge includes a first hook edge and a second hook edge, the first hook edge is formed by bending the vertical rib toward a side away from the other hook portion, and the second hook edge is formed by bending the first hook edge downward; the accommodating space is formed between the vertical rib, the first hook edge and the second hook edge.

[0011] In some embodiments, the connecting edge includes a first connecting edge, which is formed by bending the vertical edge toward the side where the other connecting portion is located, and is suitable for being arranged opposite to the hook edge so that the connecting portion extends into the accommodating space.

[0012] In some embodiments, the buckle portion includes a first buckle edge, which is formed by bending the main body downward and is suitable for being arranged opposite to the second hook edge.

[0013] In some embodiments, the connecting edge further includes a second connecting edge, which is formed by bending the first connecting edge downward and is suitable for being arranged opposite to the second hook edge so that the connecting portion extends into the accommodating space.

[0014] In some embodiments, the hook portion also includes a third hook edge, which is formed by bending the second hook edge toward the side where the vertical rib is located, and the length of the third hook edge is less than the length of the first hook edge to form the accommodating space; when the connecting portion extends into the accommodating space, the projection of the end of the second connecting edge in the extension direction falls on the third hook edge.

[0015] In some embodiments, the buckle portion further includes a second buckle edge, which is formed by bending the first buckle edge toward the side where the other buckle portion is located, and is suitable for being arranged opposite to the third hook edge.

[0016] In some embodiments, after complete edge locking, the main body of the buckle cover is bent to form a first main body located above the hook portion and a second main body located on the side of the hook portion, the first connecting edge, the vertical edge, the hook edges of the hook portion, the vertical ribs and the second main body are vertically stacked, and the first buckle edge and the second hook edge are accommodated between the vertical edge and the first connecting edge, the first connecting edge is accommodated between the first hook edge and the second hook edge, and the first hook edge and the second hook edge are accommodated between the second main body and the first buckle edge.

[0017] In some embodiments, after pre-locking, the end of the second hook edge of the hook portion is inclined toward the vertical rib, and the end of the third hook edge is inclined toward the first hook edge, so that the end of the second connecting edge of the connecting portion extends into the corner of the second hook edge and the third hook edge; the end of the first buckle edge of the buckle cover is inclined toward the vertical rib to cover the second hook edge, and the end of the second buckle edge is inclined toward the main body to cover the third hook edge, so that the corner of the second hook edge and the third hook edge is located within the corner with the first buckle edge and the second buckle edge.

[0018] In some embodiments, after complete locking, the connecting edges of the connecting part, the hook edges of the hook part and the buckle edges of the buckle part are stacked laterally, and the second buckle edge and the third hook edge are placed between the first connecting edge and the second connecting edge, the first connecting edge and the second connecting edge are placed between the first hook edge and the second hook edge, and the first hook edge and the second hook edge are placed between the main body and the first buckle edge.

[0019] Compared with the related art, the beneficial effects of one or more embodiments of the present application are:

[0020] Two metal tiles on both sides of the support are connected by two back-to-back hooks on the support, and the hook of the support and the connecting part of the metal tile are covered by a buckle cover to form a locking edge on each of the two opposite sides of the support. When the metal tile is subjected to wind-lifting force, the metal tile tends to rise and act on the two locking edges, and then the force received is decomposed into two component forces in opposite directions through the two locking edges, which is beneficial to prevent the locking edge from twisting and improves the wind-lifting resistance of the metal roofing system. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of a metal tile system according to some embodiments of the present application;

[0022] Figure 2 is a schematic diagram of the installation of a metal tile system according to some embodiments of the present application;

[0023] Figure 3yes Figure 2 A partial enlarged view of the middle A;

[0024] Figure 4 is a schematic structural diagram of a support according to some embodiments of the present application;

[0025] Figure 5 is a schematic structural diagram of a metal tile according to some embodiments of the present application;

[0026] Figure 6 yes Figure 5 A partial enlarged view of point B in the middle;

[0027] Figure 7 is a schematic structural diagram of a buckle cover according to some embodiments of the present application;

[0028] Figure 8 is a schematic diagram of the installation of metal tiles and supports according to some embodiments of the present application;

[0029] Fig. 9 yes Figure 8 A partial enlarged view of point C in the middle;

[0030] Fig.10 is a schematic diagram of a pre-locked edge state of a metal tile system according to some embodiments of the present application;

[0031] Fig.11 yes Fig.10 A partial enlarged view of point D in the middle;

[0032] Fig.12 is a schematic diagram of a metal tile system in a completely locked edge state according to some embodiments of the present application;

[0033] Fig.13 yes Fig.12 A partial enlarged view of point E in the middle;

[0034] Fig.14 is a schematic diagram of a support mounted on a metal tile according to some embodiments of the present application;

[0035] Fig.15 is a schematic diagram of a metal tile installed on a support according to some embodiments of the present application;

[0036] Fig.16 A schematic diagram of pre-locking a metal tile system according to some embodiments of the present application;

[0037] Fig.17 A schematic diagram of the locking edge start of a metal tile system according to some embodiments of the present application;

[0038] Fig.18A schematic diagram of fully locking the edge of a metal tile system according to some embodiments of the present application;

[0039] Fig.19 is a schematic diagram of installation of a metal tile system according to other embodiments of the present application;

[0040] Fig. 20 yes Fig.19 A partial enlarged view of the F in the middle;

[0041] Fig.21 is a schematic diagram of a metal tile system in a completely locked edge state according to other embodiments of the present application;

[0042] Fig. 22 yes Fig.21 A partial enlarged view of the G in the middle;

[0043] Fig.23 is a schematic diagram of another completely locked edge state of a metal tile system according to other embodiments of the present application;

[0044] Fig.24 yes Fig.23 A partial enlarged view of point H in the middle.

[0045] In the figure: 10, support; 11, supporting part; 12, hook part; 121, vertical rib; 122, first hook edge; 123, second hook edge; 124, third hook edge; 125, accommodating space; 20, metal tile; 21, base; 22, connecting part; 221, vertical edge; 222, first connecting edge; 223, second connecting edge; 30, buckle cover; 31, main body; 311, first main body; 312, second main body; 32, buckle part; 321, first buckle edge; 322, second buckle edge. DETAILED DESCRIPTION

[0046] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0047] In the description of the present application, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of the present application.

[0048] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0049] Figure 1 It is a schematic structural diagram of a metal roofing system according to some embodiments of the present application.

[0050] One or more embodiments of the present application disclose a metal roofing system, such as Figure 1-Figure 3 As shown, it comprises: a support 10, a metal tile 20 and a buckle cover 30. The support 10 comprises a support portion 11 and two hook portions 12 located above the support portion 11. The two hook portions 12 are arranged back to back, and a receiving space 125 is formed between the hook portions 12. Both ends of the metal tile 20 are provided with a connecting portion 22, and the connecting portion 22 is suitable for extending along the hook portion 12 into the receiving space 125 to connect the metal tile 20 and the support 10. The buckle cover 30 is suitable for covering the two hook portions 12 to connect the buckle cover 30 and the support 10.

[0051] It can be understood that the two metal tiles 20 located on both sides of the support 10 are connected by two back-to-back hooks 12 on the support 10, and the hooks 12 of the support 10 and the connecting parts 22 of the metal tiles 20 are covered by the buckle cover 30, so that a locking edge is formed on the two opposite sides of the support 10. When the metal tiles 20 are subjected to wind-lifting force, the metal tiles 20 tend to be lifted upward and act on the two locking edges, and then the force received is decomposed into two components in opposite directions through the two locking edges, which is helpful to prevent the locking edges from twisting, thereby improving the wind-lifting resistance of the metal roofing system.

[0052] It is worth mentioning that the buckle cover 30 can cover the gap between the two hooks 12, which is helpful to prevent rainwater from flowing into the support 10, so as to further improve the waterproof effect of the metal roofing system.

[0053] In some embodiments, Figure 3 As shown, the hook portion 12 includes a vertical rib 121 and a hook edge, one end of the vertical rib 121 is connected to the support portion 11 and extends vertically upward from the support portion 11, and the other end of the vertical rib 121 is connected to the hook edge, and the hook edge is located on the side of the vertical rib 121 away from the other hook portion 12, and a receiving space 125 is formed between the vertical rib 121 and the hook edge, with an opening facing the support portion 11. In some other embodiments, the vertical ribs 121 of the two hook portions 12 disposed opposite to each other on the support seat fit together to improve the structural strength.

[0054] In some embodiments, Figure 5As shown, the metal tile 20 further includes a base 21, and a connecting portion 22 is provided at both ends of the base 21. The base 21 is suitable for supporting the connecting portion 22 so that the connecting portion 22 is accommodated in the accommodation space 125 of the hook portion 12. It can be understood that the hook portion 12 is located above the support portion 11, and the base 21 of the metal tile 20 is able to support the connecting portion 22. Then, under the condition that the metal tile 20 and the support 10 are connected to each other, the connecting portion 22 is able to be located above the support portion 11 and accommodated in the accommodation space 125 of the hook portion 12.

[0055] Further, such as Figure 3 As shown, the connecting portion 22 includes a vertical edge 221 and a connecting edge. The vertical edge 221 is formed by bending the base 21 upwards and is suitable for fitting with the vertical rib 121 to improve the structural strength of the hook portion 12 and the connecting portion 22 after installation, which is conducive to providing more reliable support for the photovoltaic components laid on the metal roof system. The end of the vertical edge 221 is connected to the connecting edge, which is located on the side of the vertical edge 221 facing the other connecting portion 22 on the metal tile 20, and the connecting edge is suitable for extending along the hook edge into the accommodating space 125 to connect the metal tile 20 and the support 10.

[0056] In some embodiments, Figure 7 As shown, the buckle cover 30 also includes a main body portion 31, and a buckle portion 32 is provided at both ends of the main body portion 31. The main body portion 31 is suitable for covering the upper side of the hook portion 12 to block the gap between the two hook portions 12, and the buckle portion 32 is suitable for covering the outer side of the hook portion 12 to be connected to the hook portion 12.

[0057] In some embodiments, Fig.19 and Fig. 20 As shown, the hook edge includes a first hook edge 122 and a second hook edge 123. The first hook edge 122 is formed by bending the vertical rib 121 toward the side away from the other hook portion 12, and the second hook edge 123 is formed by bending the first hook edge 122 downward. Further, an accommodation space 125 is formed between the vertical rib 121, the first hook edge 122 and the second hook edge 123; the connecting edge includes a first connecting edge 222, which is formed by bending the vertical edge 221 toward the side where the other connecting portion 22 of the metal tile 20 is located, and is suitable for being arranged opposite to the first hook edge 122, so that the connecting portion 22 extends into the accommodation space 125.

[0058] It can be understood that, when the metal tile 20 is installed on the support 10, the connecting portion 22 extends into the accommodating space 125, so that the projection of the first connecting edge 222 in its extension direction falls on the second hook edge 123, so that the hook portion 12 can position the connecting portion 22 in the horizontal direction, which is beneficial to avoid the metal tile 20 from moving relative to the support 10 in the arrangement direction of the two during the installation process.

[0059] Furthermore, the buckle portion 32 includes a first buckle edge 321, which is formed by bending the main body portion 31 downward and is suitable for being arranged opposite to the second hook edge 123. That is, when the buckle cover 30 is installed on the upper part of the support 10, the main body portion 31 of the buckle cover 30 is suitable for covering the first hook edges 122 of the two hook portions 12, and the first buckle edge 321 of the buckle cover 30 is located on the side of the second hook edge 123 away from the vertical rib 121, so that the buckle portion 32 is covered on the outside of the two hook portions 12.

[0060] In some embodiments, the length of the first hook edge 122 is greater than the length of the first connecting edge 222, the length of the main body 31 is greater than the sum of the lengths of the two first hook edges 122, and the length of the first buckle edge 321 is greater than the length of the second hook edge 123, so as to provide a bending margin during the locking process, thereby helping to reduce the risk of tearing among the first hook edge 122, the second hook edge 123, the main body 31 and the first buckle edge 321.

[0061] In a specific embodiment, Fig.21 and Fig. 22 As shown, under the condition that the metal roof system is completely locked, the two vertical ribs 121 of the hook portion 12 of the support 10 are respectively fitted with the vertical edges 221 of the connecting portion 22 of a metal tile 20. Further, the main body 31, the first buckle edge 321, the first hook edge 122, the second hook edge 123 and the first connecting edge 222 are arranged in a transverse stack, and the first connecting edge 222 is accommodated between the first hook edge 122 and the second hook edge 123, and the first hook edge 122 and the second hook edge 123 are accommodated between the main body 31 and the first buckle edge 321 to form two transverse locking edges arranged in opposite directions, which is beneficial to improve the wind-resistant performance of the metal roof system. It can be understood that the main body 31 of the buckle cover 30 is able to form a supporting platform to be connected and fixed with the photovoltaic module.

[0062] In another specific embodiment, Fig.23 and Fig.24As shown, under the condition that the metal roof system is completely locked, the two vertical ribs 121 of the hook portion 12 of the support 10 are respectively fitted with the vertical edges 221 of the connecting portion 22 of a metal tile 20. Further, the main body 31 of the buckle cover 30 is bent to form a first main body 311 located above the hook portion 12 and a second main body 312 located on the side of the hook portion 12, the first connecting edge 222, the vertical edge 221, the first hook edge 122, the second hook edge 123, the vertical rib 121, the first buckle edge 321 and the second main body 312 are vertically stacked, and the first buckle edge 321 and the second hook edge 123 are accommodated between the vertical edge 221 and the first connecting edge 222, the first connecting edge 222 is accommodated between the first hook edge 122 and the second hook edge 123, and the first hook edge 122 and the second hook edge 123 are accommodated between the second main body 312 and the first buckle edge 321, so as to form two vertical locking edges arranged in opposite directions, which is beneficial to improve the wind-proof performance of the metal roof system.

[0063] In other embodiments, Figure 2-Figure 9 As shown, the connecting edge further includes a second connecting edge 223, which is formed by bending the first connecting edge 222 downward, and is adapted to be arranged opposite to the second hook edge 123, so that the connecting portion 22 extends into the accommodation space 125. That is, when the metal tile 20 is installed on the support 10, the connecting portion 22 extends into the accommodation space 125, the first connecting edge 222 and the first hook edge 122 are arranged opposite to each other, and the second connecting edge 223 and the second hook portion 12 are arranged opposite to each other.

[0064] Further, under the condition that the buckle cover 30 is installed on the upper part of the support 10, the main body 31 of the buckle cover 30 is suitable for covering the first hook edges 122 of the two hook portions 12, and is arranged opposite to the two first connecting portions 22, the first buckle edge 321 of the buckle cover 30 is located on the side of the second hook edge 123 away from the vertical rib 121, and the second connecting edge 223 of the connecting portion 22 is located on the side of the second hook edge 123 close to the vertical rib 121. It can be understood that after locking, the first connecting edge 222 and the second connecting edge 223 are attached and accommodated between the first hook edge 122 and the second hook edge 123, and the first hook edge 122 and the second hook edge 123 are accommodated between the first buckle edge 321 and the main body 31.

[0065] Further, such as Figure 3 and Fig. 9As shown, the hook portion 12 also includes a third hook edge 124, which is formed by bending the second hook edge 123 toward the side where the vertical rib 121 is located, and the length of the third hook edge 124 is less than the length of the first hook edge 122, so as to form a downwardly opening accommodation space 125. When the connecting portion 22 extends into the accommodation space 125, the projection of the end of the second connecting edge 223 in the extension direction falls on the third hook edge 124, so that the second connecting edge 223 can be accommodated between the second hook edge 123 and the third hook edge 124 during the locking process, further increasing the matching length of the connecting portion 22 and the hook portion 12, so as to reduce the risk of the locking edge being twisted when the metal tile 20 is subjected to wind lifting force, thereby improving the wind lifting resistance of the metal roofing system.

[0066] Furthermore, if Figure 3 As shown, the buckle portion 32 further includes a second buckle edge 322, which is formed by bending the first buckle edge 321 toward the side where the other buckle portion 32 is located, and is suitable for being arranged opposite to the third hook edge 124. That is, under the condition that the buckle cover 30 is installed on the upper part of the support 10, the main body 31 of the buckle cover 30 is suitable for covering the first hook edges 122 of the two hook portions 12, the first buckle edge 321 of the buckle cover 30 is located on the side of the second hook edge 123 away from the vertical rib 121, and the second buckle edge 322 is located on the side of the third hook edge 124 away from the first hook edge 122, so that the buckle portion 32 is covered on the outer sides of the two hook portions 12.

[0067] In some embodiments, the length of the first hook edge 122 is greater than the length of the first connecting edge 222, the length of the second hook edge 123 is greater than the length of the second connecting edge 223, the length of the main body 31 is greater than the sum of the lengths of the two first hook edges 122, the length of the first buckle edge 321 is greater than the length of the second hook edge 123, and the length of the second buckle edge 322 is greater than the length of the third hook edge 124, so as to provide a bending allowance during the locking process, thereby helping to reduce the risk of tearing at each connecting edge, each hook edge and each buckle edge.

[0068] It is worth mentioning that Figure 3 As shown, when the metal tile 20 and the buckle cover 30 are installed on the support 10, the two vertical ribs 121 of the hook portion 12 of the support 10 are respectively fitted with the vertical edges 221 of the connecting portion 22 of the metal tile 20. Furthermore, the first connecting edge 222, the first hook edge 122 and the main body 31 are stacked; there are gaps between the second connecting edge 223 and the second hook edge 123, between the end of the second connecting edge 223 and the third hook edge 124, between the first buckle edge 321 and the second hook edge 123, and between the second buckle edge 322 and the third hook edge 124, so as to provide a bending margin when locking the edges and form a suitable accommodation space.

[0069] In a specific embodiment, Fig.10 and Fig.11As shown, under the condition of pre-locking of the metal roof system, the two vertical ribs 121 of the hook portion 12 of the support 10 are respectively fitted with the vertical edge 221 of the connecting portion 22 of a metal tile 20, which is conducive to improving the structural strength, thereby more reliably supporting the photovoltaic module. Further, the end of the second hook edge 123 of the hook portion 12 is inclined toward the vertical rib 121, and the end of the third hook edge 124 is inclined toward the first hook edge 122, so that the end of the second connecting edge 223 of the connecting portion 22 extends into the corner of the second hook edge 123 and the third hook edge 124; the end of the first buckle edge 321 of the buckle cover 30 is inclined toward the vertical rib 121 to cover the second hook edge 123, and the end of the second buckle edge 322 is inclined toward the main body 31 to cover the third hook edge 124, so that the corner of the second hook edge 123 and the third hook edge 124 is located in the corner with the first buckle edge 321 and the second buckle edge 322. It can be understood that the pre-locking edge can initially control the bending direction of each buckle edge and each hook edge, which is beneficial for making each buckle edge, each hook edge and each connecting edge bend in a preset direction when the edge is fully locked to complete the locking.

[0070] In a specific embodiment, under the condition that the metal roofing system is fully locked, such as Fig.12 and Fig.13 As shown, the two vertical ribs 121 of the hook portion 12 of the support 10 are respectively fitted with the vertical edges 221 of the connecting portion 22 of a metal tile 20. Furthermore, the connecting edges of the connecting portion 22, the hook edges of the hook portion 12 and the buckle edges of the buckle portion 32 are arranged in a transversely stacked manner, and the second buckle edge 322 and the third hook edge 124 are accommodated between the first connecting edge 222 and the second connecting edge 223, the first connecting edge 222 and the second connecting edge 223 are accommodated between the first hook edge 122 and the second hook edge 123, and the first hook edge 122 and the second hook edge 123 are accommodated between the main body 31 and the first buckle edge 321 to form two transverse locking edges arranged in opposite directions, which is beneficial to improve the wind-resistant performance of the metal roofing system. It can be understood that the main body 31 of the buckle cover 30 is able to form a supporting platform to be connected and fixed with the photovoltaic module.

[0071] In another specific embodiment, under the condition that the metal roof system is completely locked, the two vertical ribs 121 of the hook portion 12 of the support 10 are respectively fitted with the vertical edges 221 of the connecting portion 22 of a metal tile 20. Further, the main body 31 of the buckle cover 30 is bent to form a first main body 311 located above the hook portion 12 and a second main body 312 located on the side of the hook portion 12. The connecting edges of the connecting portion 22, the vertical edges 221, the hook edges of the hook portion 12, the vertical ribs 121, the buckle edges of the buckle portion 32 and the second main body 312 are vertically stacked to form two vertical locking edges arranged in opposite directions, which is beneficial to improve the wind-resistant performance of the metal roof system.

[0072] In some embodiments, the first connecting edge 222 and the second connecting edge 223 form an angle α, which satisfies: 90°≤α≤95°, which is conducive to making the end of the second connecting edge 223 abut against the second hook edge 123 during pre-locking, and located at the corner of the second hook edge 123 and the third hook edge 124. In at least one embodiment, 92°≤α≤94°.

[0073] In some embodiments, the first buckle edge 321 and the main body 31 form an angle β, which satisfies: 90°≤β≤100°, which is conducive to avoiding the hook portion 12 during installation, making it easier to install the buckle cover 30 on the hook portion 12 of the support 10. In at least one embodiment, 93°≤β≤97°.

[0074] The specific installation process of the metal roof system is as follows:

[0075] (1) Fig.14 As shown, a metal tile 20 and a support 10 are provided, one of the hooks 12 of the support 10 is connected to the connecting portion 22 of the metal tile 20, so that the connecting portion 22 extends into the receiving space 125, and the support 10 is fixed to the purlin of the roof by fasteners;

[0076] (2) Fig.15 As shown, another metal tile 20 is provided, and the metal tile 20 is connected to another hook portion 12 of the support 10, so that the connecting portion 22 extends into the accommodating space 125;

[0077] (3) providing a buckle cover 30, and installing the buckle cover 30 on the two hooks 12 of the support 10;

[0078] (4) Fig.16 As shown, the buckle cover 30, the hook portion 12 and the connecting portion 22 are pre-locked using a pre-locking device;

[0079] (5) Fig.17 As shown, use manual locking pliers to start at the end;

[0080] (6) Fig.18 As shown, the buckle cover 30, the hook portion 12 and the connecting portion 22 are completely locked using an electric locking machine.

[0081] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and the specification only describe the principles of the present application. The present application may have various changes and improvements without departing from the spirit and scope of the present application, and these changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the attached claims and their equivalents.

Claims

1. A metal roofing system, characterized in that: include: A support, the support comprising a support portion and two hook portions located above the support portion, the two hook portions are arranged back to back, and a receiving space is formed between the hook portions; A metal tile, wherein both ends of the metal tile are provided with a connecting portion, and the connecting portion is suitable for extending along the hook portion into the accommodating space so as to connect the metal tile and the support; A buckle cover is suitable for covering the two hooks so that the buckle cover is connected to the support.

2. The metal roofing system according to claim 1, characterized in that: The hook portion includes a vertical rib and a hook edge, one end of the vertical rib is connected to the support portion and extends vertically upward from the support portion, the other end of the vertical rib is connected to the hook edge, the hook edge is located on the side of the vertical rib away from the other hook portion, and the accommodating space is formed between the vertical rib and the hook edge.

3. The metal roofing system according to claim 2, characterized in that: The metal tile further comprises a base, both ends of the base are provided with a connecting portion, and the base is suitable for supporting the connecting portion so that the connecting portion is accommodated in the accommodating space of the hook portion.

4. The metal roofing system according to claim 3, characterized in that: The connecting portion includes a vertical edge and a connecting edge. The vertical edge is formed by bending the base upward and is suitable for fitting with the vertical rib. The end of the vertical edge is connected to the connecting edge. The connecting edge is located on the side of the vertical edge facing the other connecting portion, and the connecting edge is suitable for extending into the accommodating space along the hook edge to connect the metal tile and the support.

5. The metal roofing system according to claim 4, characterized in that: The buckle cover also includes a main body, and a buckle portion is provided at both ends of the main body. The main body is suitable for covering the upper side of the hook portion, and the buckle portion is suitable for covering the outer side of the hook portion.

6. The metal roofing system according to claim 5, characterized in that: The hook edge includes a first hook edge and a second hook edge, the first hook edge is formed by bending the vertical rib toward a side away from the other hook portion, and the second hook edge is formed by bending the first hook edge downward; the accommodating space is formed between the vertical rib, the first hook edge and the second hook edge.

7. The metal roofing system according to claim 6, characterized in that: The connecting edge comprises a first connecting edge, which is formed by bending the vertical edge toward the side where the other connecting portion is located, and is suitable for being arranged opposite to the hook edge so that the connecting portion extends into the accommodating space.

8. The metal roofing system according to claim 7, characterized in that: The buckle portion includes a first buckle edge, which is formed by bending the main body downward and is suitable for being arranged opposite to the second hook edge.

9. The metal roofing system according to claim 8, characterized in that: The connecting edge further includes a second connecting edge, which is formed by bending the first connecting edge downward and is suitable for being arranged opposite to the second hook edge so that the connecting portion extends into the accommodating space.

10. The metal roofing system according to claim 9, characterized in that: The hook portion further includes a third hook edge, which is formed by bending the second hook edge toward the side where the vertical rib is located, and the length of the third hook edge is smaller than the length of the first hook edge, so as to form the accommodation space; When the connecting portion extends into the accommodating space, the projection of the end of the second connecting edge in the extending direction falls on the third hook edge.

11. The metal roofing system according to claim 10, characterized in that: The buckle portion further includes a second buckle edge, which is formed by bending the first buckle edge toward the side where the other buckle portion is located, and is suitable for being arranged opposite to the third hook edge.

12. The metal roofing system according to claim 8, characterized in that: After complete edge locking, the main body of the buckle cover is bent to form a first main body located above the hook portion and a second main body located on the side of the hook portion, the first connecting edge, the vertical edge, the hook edges of the hook portion, the vertical ribs and the second main body are vertically stacked, and the first buckle edge and the second hook edge are accommodated between the vertical edge and the first connecting edge, the first connecting edge is accommodated between the first hook edge and the second hook edge, and the first hook edge and the second hook edge are accommodated between the second main body and the first buckle edge.

13. The metal roofing system according to claim 11, characterized in that: After pre-locking, the end of the second hook edge of the hook portion is inclined toward the vertical rib, and the end of the third hook edge is inclined toward the first hook edge, so that the end of the second connecting edge of the connecting portion extends into the corner of the second hook edge and the third hook edge; the end of the first buckle edge of the buckle cover is inclined toward the vertical rib to cover the second hook edge, and the end of the second buckle edge is inclined toward the main body to cover the third hook edge, so that the corner of the second hook edge and the third hook edge is located within the corner with the first buckle edge and the second buckle edge.

14. The metal roofing system according to claim 11, characterized in that: After complete locking, the connecting edges of the connecting part, the hook edges of the hook part and the buckle edges of the buckle part are stacked laterally, and the second buckle edge and the third hook edge are placed between the first connecting edge and the second connecting edge, the first connecting edge and the second connecting edge are placed between the first hook edge and the second hook edge, and the first hook edge and the second hook edge are placed between the main body and the first buckle edge.

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