A roof panel tenon-and-mortise rolled edge sliding support connection node

Abstract

This invention discloses a roof panel tenon-and-mortise rolled edge sliding support connection node, including a roof panel and a support. The roof panel includes a bottom plate and two vertical male and female ribs on both sides. The support includes a fixed base and a rolled edge sliding piece. The fixed base includes a horizontal connecting plate and a base web. The rolled edge sliding piece includes a grooved rib, a sliding piece web, and a rolled edge fastening groove. The base web and rolled edge sliding piece of the fixed base are disposed between the male and female ribs. A sliding groove connecting piece is inserted into the transverse constraint groove of the male rib, or sliding groove connecting pieces are inserted into the transverse constraint grooves of adjacent male and female ribs. The sliding groove connecting piece is slidably connected to the male and female ribs. The rolled edge sliding piece is slidably connected to the fixed base. This invention not only has reliable pull-out resistance but also has significant compressive strength, improving the vertical load-bearing capacity of roofs under vertical loads such as photovoltaic panels and decorative roofs.

Description

Technical Field

[0001] This invention relates to the field of metal roofing cladding systems, specifically to a roof panel tenon-and-mortise rolled edge sliding support connection node. Background Technology

[0002] Metal roofing systems are a primary enclosure system for large steel structure industrial and public buildings. Traditional metal roof panels mainly function for wind resistance and waterproofing. The connection between traditional metal roof panels and roof supports typically uses a 360-degree rolled edge connection at the top of the ribs, resulting in unreliable connection performance. Typical wind uplift resistance is only 3-5 kPa, which cannot meet the wind load design requirements of coastal areas with strong winds. Traditional metal roof supports generally use sliding plates embedded in the middle or upper part of the base for sliding. The connection between the sliding plates and the base is weak, and the rigidity of the sliding support is insufficient. It can only withstand the roof's pull-out force, and its compressive strength under vertical loads is poor. This makes the supports prone to failure under vertical loads on composite roofs or photovoltaic roofs, causing serious engineering quality risks. Improving the compressive and pull-out resistance of roof supports is a key path to improving the performance of metal roofs. Summary of the Invention

[0003] This invention addresses the insufficient load-bearing and pull-out resistance of roof supports in existing metal roofing systems. It proposes a tenon-and-mortise rolled-edge sliding support connection node. The support and roof panel are connected via a horizontal connecting plate that slides within the transverse constraint groove of the roof panel ribs, forming a first set of directional sliding fits and creating a first sliding constraint system. The roof panel ribs are then fixed with rolled-edge sliding plates, and the rolled-edge sliding plate's grooved rib slides within the fixed base's sliding plate connection groove, forming a second independent sliding fit and creating a second sliding constraint system. Through these two independent sliding structures—the horizontal connecting plate sliding within the transverse constraint groove of the roof panel ribs and the rolled-edge sliding plate's grooved rib sliding within the fixed base's sliding plate connection groove—the support forms a composite node structure with double sliding and double constraints. This integrates dual sliding degrees of freedom and dual limiting constraints within the same connection node, resulting in a synergistic effect of the overall structure. This achieves reliable assembly and connection for large-span metal roofs, demonstrating significant technological innovation and engineering value in the field of metal roofing.

[0004] To achieve the above objectives, the present invention provides the following technical solution: A roof panel tenon-and-mortise rolled edge sliding support connection node includes a roof panel and a support. The roof panel includes a bottom plate and two vertical male and female ribs on both sides. The support includes a fixed base and a rolled edge sliding piece. The fixed base includes a horizontal connecting plate and a base web. The horizontal connecting plate is perpendicular to the base web. The base web has a horizontal sliding piece connecting groove in the middle. The top of the base web has a horizontal sliding groove connecting piece on one or both sides. The sliding groove connecting piece is flat, inclined, or curved. The horizontal connecting plate, base web, and sliding groove connecting piece are integrally bent from the same 1mm-3mm thick metal plate. The rolled edge sliding piece includes a groove rib, a sliding piece web, and a rolled edge fastening groove. The bottom of the sliding piece web has a groove rib that is embedded in the sliding piece connecting groove and slides. The top of the sliding piece web has a rolled edge fastening groove. The middle of the male and female ribs... The male and female ribs, each with a transverse constraint groove, are connected to each other. An upper web is provided above the transverse constraint groove, and a rolled edge piece is provided at the top of the upper web. A lower web is provided below the transverse constraint groove, and a horizontal support plate is provided at the bottom of the lower web, horizontally towards the center of the roof panel bottom plate. The horizontal support plate is connected to the roof panel bottom plate via an inclined web. The base web and rolled edge sliding piece of the fixed base are located between the male and female ribs. A sliding groove connecting piece is inserted into the transverse constraint groove of the male rib, or sliding groove connecting pieces are inserted into the transverse constraint grooves of adjacent male and female ribs. The sliding groove connecting piece is slidably connected to the male and female ribs. The rolled edge fastening groove is placed above the rolled edge piece of the male rib, and the rolled edge piece of the female rib is placed above the rolled edge fastening groove. The rolled edge piece, rolled edge fastening groove, and rolled edge piece of the female rib are rolled edge connected. The rolled edge sliding piece is slidably connected to the fixed base.

[0005] This solution proposes two independent sliding structures: the horizontal connecting plate of the support slides within the transverse constraint groove of the roof panel rib, and the rolled edge sliding rib of the support slides within the connecting groove of the fixed base sliding plate. This creates a composite node structure with double sliding and double constraint, integrating a connection technology with double sliding degrees of freedom and double limiting constraints within the same connection node. This not only preserves the sliding performance of the roof support but also effectively improves the pull-out resistance and compressive strength of the roof-support connection by more than 1.5 times. It has significant technological innovation and engineering value in the field of metal roofing.

[0006] As a preferred embodiment of the present invention, the base web of the support is provided with a single-sided transverse lower support plate in the middle, and the lower support plate is placed on the lower side of the male plate rib horizontal support plate or the female plate rib horizontal support plate.

[0007] As a preferred embodiment of the present invention, the base web of the support is provided with double-sided transverse lower support plates in the middle, and the lower support plates are respectively placed under the male plate rib horizontal support plate and the female plate rib horizontal support plate.

[0008] As a preferred embodiment of the present invention, the upper web of the male plate rib and the upper web of the female plate rib are longitudinally continuously welded.

[0009] As a preferred embodiment of the present invention, the web of the male plate rib and the web of the female plate rib are intermittently welded in the non-support connection area.

[0010] As a preferred embodiment of the present invention, a continuous sealant is provided along the longitudinal direction of the rib between adjacent male plate rib rolled edge pieces and female plate rib rolled edge pieces.

[0011] As a preferred embodiment of the present invention, the end of the horizontal connecting plate of the fixed base is bent into a vertical stiffening plate, and one vertical edge of the stiffening plate is embedded or welded to the web of the fixed base. Traditional rolled-edge sliding bearings are generally mainly used to resist pull-out under negative wind pressure on the roof. Due to the poor bearing capacity of vertical bearings and the poor stability of bearings under compression, this solution uses a stiffening plate on the web of the bearing to improve the overall stability of the bearing. Furthermore, the sliding groove connecting piece not only plays a role in restraining pull-out but also provides support for bearing pressure. Therefore, the node technology of this solution not only has reliable pull-out resistance but also has greater compressive strength, improving the vertical bearing capacity of the roof under vertical loads such as photovoltaic panels and decorative roofs.

[0012] As a preferred embodiment of the present invention, the bottom of the horizontal connecting plate of the fixed base is provided with a rigid isolation pad made of plastic or nylon.

[0013] As a preferred embodiment of the present invention, the roof panel is made of a metal plate with a thickness of 0.5~1.2mm, the fixing base is made of a metal plate with a thickness of 1.0~3.0mm, and the rolled edge sliding piece is made of a metal plate with a thickness of 0.3~1.2mm.

[0014] As a preferred embodiment of the present invention, the inner surface, outer surface, or both sides of the roof panel are covered with an anti-corrosion adhesive film, TPO film, PVC film, or metal composite film, with a film thickness of 0.1~2mm. The film is pre-coated in a roll material factory or fabricated by pressing roof panels. This solution composites a highly corrosion-resistant film material onto a traditional metal roof panel, improving the corrosion resistance of traditional steel roof panels in highly corrosive environments such as chemical plants, paper mills, and steel mills, ensuring the durability of the factory's metal roof and significantly reducing the operation, maintenance, and renovation costs of the factory.

[0015] As a preferred embodiment of the present invention, the installation sequence of the support and the roof panel rib is as follows: the male rib of the roof panel is installed in place; the edge-rolling groove of the support edge-rolling slide on the right side of the male rib is fastened at an angle to the upper part of the male rib edge-rolling piece; then the slide connecting piece is inserted into the transverse constraint groove of the male rib by rotating clockwise; the web of the edge-rolling piece is pressed tightly against the upper web of the male rib, and the web of the base is pressed tightly against the lower web of the male rib; the horizontal connecting plate of the fixed base is connected to the lower structure with screws; then the edge-rolling piece of the female rib is fastened at an angle to the upper part of the edge-rolling groove; the female rib is rotated clockwise to press the upper web of the male rib against the upper web of the male rib; finally, the male edge-rolling piece, the edge-rolling groove, and the female edge-rolling piece are edge-rolled together.

[0016] This solution utilizes two independent sliding structures: the horizontal connecting plate of the support slides within the transverse constraint groove of the roof panel rib, and the rolled edge sliding plate of the support slides within the connecting groove of the fixed base sliding plate. This creates a composite node structure with double sliding and double constraint, integrating dual sliding degrees of freedom and dual limiting constraints within the same connection node. The overall structure works synergistically to achieve reliable assembly and connection of large-span metal roofs. This solution achieves an innovative double-slip structure, resulting in more thorough stress release. It utilizes two independent sliding paths—the transverse constraint groove of the roof panel rib and the sliding plate connection groove of the support—to form a double-slip system. This system can simultaneously adapt to the thermal expansion and contraction deformation of the roof panel in different directions, significantly improving the temperature stress release capability of ultra-long roof panels and effectively avoiding panel cracking and joint failure caused by single-slip limitation. It also achieves a double-constraint limiting innovation, significantly improving connection reliability. The two sliding structures simultaneously form dual rigid constraints: the transverse constraint groove of the roof panel rib provides transverse torsional restraint, while the sliding plate connection groove of the support provides longitudinal pull-out restraint. These dual constraints reinforce each other, significantly improving the joint's resistance to wind uplift and shear, ensuring the overall stability of the roof system under complex working conditions. Building upon the traditional rib top rolled edge connection, Based on the traditional rolled edge connection at the top of the rib, an innovative dual-connection roof panel wind-resistant technology has been developed, combining lateral constraint in the middle of the metal roof panel rib with a 360-degree rolled edge connection. This reduces the rotational constraint arm of the traditional roof panel bottom plane by 40% to 50%, effectively improving the support constraint force of the roof under wind uplift due to planar bulging, enhancing the node stiffness of the roof panel rib, and achieving a dual wind-resistant connection that can improve wind uplift resistance by 50% to 100%. This solution retains the traditional rolled edge expansion structure. In the event of damage to the rolled edge sliding plate under strong winds or temperature expansion stress, the innovative sliding groove connection not only provides a second wind-resistant protective barrier, but also maintains the expansion and contraction performance of the sliding groove connection and the roof panel rib, ensuring the wind resistance and temperature stress release performance of the metal roof panel.

[0017] The beneficial effects of this invention are: (1) Dual sliding system, efficient release of temperature stress. The innovative dual independent sliding structure forms two independent sliding paths through the transverse constraint groove of the roof panel rib and the connecting groove of the support sliding plate. It can simultaneously adapt to the multi-directional thermal expansion and contraction of the roof panel, and the stress is released more fully, eliminating the problems of panel cracking and node failure caused by single sliding limitation of ultra-long roof panels.

[0018] (2) Bidirectional rigid constraint improves the reliability of node connection. Relying on the double sliding structure to form double rigid limit, the transverse constraint groove realizes anti-torsional limit, and the sliding plate connection groove realizes longitudinal anti-pull constraint. The bidirectional constraint works together to significantly enhance the node's resistance to wind uplift and shear, and ensure the overall stability of the roof under complex working conditions.

[0019] (3) Dual wind-resistant connection enhances node stiffness and wind resistance. The first dual connection method of transverse constraint in the middle of the plate rib + 360° rolled edge shortens the constraint arm by 40%~50% compared with the traditional structure, greatly suppresses wind uplift and bulging deformation, significantly improves node stiffness, and improves the overall wind uplift performance by 50%~100%.

[0020] (4) Double protection redundancy, still maintains expansion and contraction performance after failure, retains the expansion and contraction characteristics of traditional rolled edge sliding plate, and adds sliding groove connecting plate as a second wind-resistant barrier; after the main sliding plate is damaged, the sliding groove structure can still achieve sliding expansion and contraction, continuously ensuring the roof's wind resistance and temperature stress release capabilities.

[0021] (5) It combines pull-out resistance and pressure bearing capacity, and enhances vertical bearing capacity. The compressive stability is improved by stiffening plate on the web of the support. The sliding groove connecting piece has both pull-out restraint and vertical pressure bearing functions, breaking through the limitations of traditional supports that are only pull-out and have weak pressure bearing capacity. It can stably bear the vertical loads of roof such as photovoltaic and decorative layers.

[0022] (6) Composite corrosion-resistant membrane material reduces costs, increases efficiency and extends lifespan. Metal roof panels are composite with highly corrosion-resistant membrane material, which is suitable for highly corrosive industrial environments such as chemical, steel and papermaking industries, improves roof durability and significantly reduces the cost of factory operation, maintenance and renovation. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0024] Figure 2 This is an enlarged structural diagram of a connecting part according to the present invention.

[0025] Figure 3 This is a schematic diagram of a cross-sectional connection structure according to the present invention. Figure 1 .

[0026] Figure 4 This is a schematic diagram of a cross-sectional connection structure according to the present invention. Figure 2 .

[0027] Figure 5This is a schematic diagram of a cross-sectional connection structure according to the present invention. Figure 3 .

[0028] Figure 6 This is a schematic diagram of a cross-sectional connection structure according to the present invention. Figure 4 .

[0029] Figure 7 This is a schematic diagram of a cross-sectional connection completed by curling edges according to the present invention.

[0030] Figure 8 This is a three-dimensional structural diagram of an adjacent roof panel male rib and female rib according to the present invention.

[0031] Figure 9 This is a schematic diagram of a cross-sectional structure of the male and female ribs of adjacent roof panels according to the present invention.

[0032] Figure 10 This is a frontal three-dimensional structural diagram of the support of the present invention. Figure 1 .

[0033] Figure 11 This is a rear-view three-dimensional structural diagram of the support of the present invention. Figure 1 .

[0034] Figure 12 This is a frontal three-dimensional structural diagram of the support of the present invention. Figure 2 .

[0035] Figure 13 This is a rear-view three-dimensional structural diagram of the support of the present invention. Figure 2 .

[0036] Figure 14 This is a frontal three-dimensional structural diagram of the support of the present invention. Figure 3 .

[0037] Figure 15 This is a rear-view three-dimensional structural diagram of the support of the present invention. Figure 3 .

[0038] Figure 16 This is a three-dimensional structural diagram of the rolled edge slider of the present invention.

[0039] Figure 17 This is a schematic elevation view of an intermittent welding of the web plates under adjacent male and female ribs according to the present invention.

[0040] Figure 18 This is a schematic cross-sectional view of an intermittent welding of the web plates under adjacent male and female ribs according to the present invention.

[0041] Figure 19 This is a schematic diagram of an installation sequence according to the present invention.

[0042] In the diagram: 1. Roof panel; 11. Base plate; 12. Male rib. 121. Transverse restraint groove of male plate rib 122. Upper web of male plate rib 123. Male plate rib rolled edge piece; 124. Male plate rib underside web. 125. Male rib horizontal support plate; 126. Male rib oblique web plate; 13. Female rib plate. 131. Transverse constraint groove of mother plate rib 132. Upper web of mother plate rib 133. Mother plate rib rolled edge piece; 134. Mother plate under rib web. 135. Horizontal support plate of mother plate rib 136. Oblique web of mother plate rib 2. Support 21. Fixed base; 211. Horizontal connecting plate; 212. Base web 213. Sliding plate connecting groove; 214. Sliding groove connecting piece; 215. Lower support plate. 216. Stiffening plate; 22. Rolled edge sliding piece; 221. Groove rib. 222, Sliding plate web; 223, Rolled edge groove; 3, Continuous welding. 4. Intermittent welding of 5 rolled edges connection. Detailed Implementation

[0043] To facilitate understanding of the present invention, a more comprehensive description of the invention will be given below with reference to the accompanying drawings, and several embodiments of the invention will be provided. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the present invention will be more thorough and complete.

[0044] 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.

[0045] 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 in the specification of this invention 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.

[0046] Please see Figures 1-19 The present invention provides a technical solution: A roof panel tenon-and-mortise rolled edge sliding support connection node includes a roof panel 1 and a support 2. The roof panel 1 includes a bottom plate 11 and two vertical male ribs 12 and female ribs 13 on both sides. The support 2 includes a fixed base 21 and rolled edge sliding pieces 22. The fixed base 21 includes a horizontal connecting plate 211 and a base web 212. The horizontal connecting plate 211 is perpendicular to the base web 212. The base web 212 has a horizontal sliding piece connecting groove 213 in the middle. The top of the base web 212 has a horizontal sliding groove connecting piece 214 on one or both sides. The sliding groove connecting piece 214 is flat, inclined, or curved. The horizontal connecting plate 211, the base web 212, and the sliding groove connecting piece 214 are made from the same piece 11. A metal sheet with a thickness of 3 mm is integrally bent into shape; the rolled edge sliding piece 22 includes a grooved rib 221, a sliding piece web 222, and a rolled edge fastening groove 223. The bottom of the sliding piece web 222 is provided with a grooved rib 221, which is embedded into the sliding piece connecting groove 213 and slidably connected. The top of the sliding piece web 222 is provided with a rolled edge fastening groove 223; the middle parts of the male plate rib 12 and the female plate rib 13 are respectively provided with a male plate rib transverse constraint groove 121 and a female plate rib transverse constraint groove 131, and the grooves of the male plate rib 12 and the female plate rib 13 of the adjacent male plate rib 12 and the female plate rib 13 are opposite each other. The upper part of the male plate rib transverse constraint groove 121 and the female plate rib transverse constraint groove 131 The roof panel 1 has a male rib upper web 122 and a female rib upper web 132. The top of the male rib upper web 122 and the female rib upper web 132 are respectively provided with male rib rolled edge pieces 123 and female rib rolled edge pieces 133. The lower parts of the male rib transverse constraint groove 121 and the female rib transverse constraint groove 131 are respectively provided with male rib lower web 124 and female rib lower web 134. The lower parts of the male rib lower web 124 and the female rib lower web 134 are horizontally positioned towards the center of the roof panel 1 bottom plate 22 with male rib horizontal support plate 125 and female rib horizontal support plate 135. The male rib horizontal support plate 125 and the female rib horizontal support plate 135 are connected to the roof panel 1 bottom plate 11 via male rib inclined web 126 and female rib inclined web 135. 136 Connection; The base web 212 and the rolled edge sliding piece 22 of the fixed base 21 are set between the male plate rib 12 and the female plate rib 13. The sliding groove connecting piece 214 is inserted into the transverse constraint groove 121 of the male plate rib, or the sliding groove connecting piece 214 is inserted into the transverse constraint groove 121 of the adjacent male plate rib and the transverse constraint groove 131 of the female plate rib. The sliding groove connecting piece 214 is slidably connected with the male plate rib 12 and the female plate rib 13. The rolled edge fastening groove 223 is placed on the upper part of the rolled edge piece 123 of the male plate rib, and the rolled edge piece 133 of the female plate rib is placed on the upper part of the rolled edge fastening groove 223. The rolled edge piece 123 of the male plate rib, the rolled edge fastening groove 223, and the rolled edge piece 133 of the female plate rib are rolled edge connected. The rolled edge sliding piece 22 is slidably connected with the fixed base 21.

[0047] The base web 212 of the support 2 is provided with a single-sided transverse lower support plate 215 in the middle. The lower support plate 215 is placed on the lower side of the male plate rib horizontal support plate 125 or the female plate rib horizontal support plate 135.

[0048] The base web 212 of the support 2 is provided with double-sided transverse lower support plates 215 in the middle. The lower support plates 215 are respectively placed under the male plate rib horizontal support plate 125 and the female plate rib horizontal support plate 135.

[0049] The web plate 122 of the male plate rib and the web plate 132 of the female plate rib are longitudinally continuously welded 3.

[0050] The male plate rib web 124 and the female plate rib web 134 are intermittently welded in the non-support connection area.

[0051] A continuous sealant is applied along the longitudinal direction of the rib between adjacent male rib rolled edge piece 123 and female rib rolled edge piece 133.

[0052] The end of the horizontal connecting plate 211 of the fixed base 21 is bent into a vertical stiffening plate 216, and one vertical edge of the stiffening plate 216 is embedded or welded to the base web plate 212 of the fixed base 21.

[0053] The bottom of the fixed base 21 horizontal connecting plate 211 is provided with a rigid isolation pad made of plastic or nylon.

[0054] The roof panel 1 is made of a metal plate with a thickness of 0.5~1.2mm, the fixing base 21 is made of a metal plate with a thickness of 1.0~3.0mm, and the edge rolling slide 22 is made of a metal plate with a thickness of 0.3~1.2mm. The inner surface, outer surface, or both inner and outer surfaces of the roof panel 1 are covered with an anti-corrosion film, TPO film, PVC film, or metal composite film with a thickness of 0.1~2mm. The film is pre-coated by the roll material factory or made by pressing and bonding the roof panel.

[0055] Specific implementation process: The installation sequence of support 2 and roof panel 1 rib is as follows: Install the male rib 12 of the roof panel into place; on the right side of the male rib 12, the rolled edge fastening groove 223 of the support 2 rolled edge sliding piece 22 is fastened at an angle to the upper part of the male rib rolled edge piece 123; then rotate clockwise to insert the sliding groove connecting piece 214 into the transverse constraint groove 121 of the male rib; and tightly attach the web of the male rib rolled edge piece 123 to the upper web of the male rib 122. Plate 212 is tightly attached to the lower web 124 of the male plate rib. The fixed base 21 is horizontally connected to the plate 211 and the lower structure is screwed together. Then, the female plate rib rolled edge piece 133 is fastened at an angle to the upper part of the rolled edge fastening groove 223. The female plate rib 13 is rotated clockwise to tightly attach the upper web 132 of the female plate rib to the upper web 122 of the male plate rib. Finally, the rolled edge piece 123 of the male plate rib, the rolled edge fastening groove 223, and the rolled edge piece 133 of the female plate rib are rolled edge connected together.

[0056] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A roof panel tenon-and-mortise rolled edge sliding support connection node, characterized in that: It includes a roof panel and a support. The roof panel includes a bottom plate and two vertical male and female ribs on both sides. The support includes a fixed base and a rolled edge sliding plate. The fixed base includes a horizontal connecting plate and a base web. The horizontal connecting plate is perpendicular to the base web. The base web has a horizontal sliding plate connecting groove in the middle. The top of the base web has a horizontal sliding groove connecting piece on one or both sides. The sliding groove connecting piece is flat, inclined, or curved. The horizontal connecting plate, base web, and sliding groove connecting piece are formed by bending the same 1mm-3mm thick metal plate as a whole. The rolled edge sliding piece includes a grooved rib, a sliding piece web, and a rolled edge fastening groove. The bottom of the sliding piece web is provided with a grooved rib, which is embedded into the sliding piece connecting groove and slidably connected. The top of the sliding piece web is provided with a rolled edge fastening groove. The male and female ribs are respectively provided with transverse constraint grooves in the middle part, and the transverse constraint grooves of adjacent male and female ribs are opposite to each other. The upper part of the transverse constraint groove is provided with an upper web plate, the top of the upper web plate is provided with a rolled edge piece, the lower part of the transverse constraint groove is provided with a lower web plate, and the lower part of the lower web plate is provided with a horizontal support plate in the horizontal direction towards the center of the roof panel bottom plate. The horizontal support plate is connected to the roof panel bottom plate through a sloping web plate. The fixed base web and the rolled edge sliding piece are disposed between the male plate rib and the female plate rib. The sliding groove connecting piece is inserted into the transverse constraint groove of the male plate rib, or the sliding groove connecting pieces are inserted into the transverse constraint grooves of adjacent male plate ribs and female plate ribs. The sliding groove connecting piece is slidably connected to the male plate rib and the female plate rib. The rolled edge fastening groove is placed on the upper part of the rolled edge piece of the male plate rib, and the rolled edge piece of the female plate rib is placed on the upper part of the rolled edge fastening groove. The rolled edge piece of the male plate rib, the rolled edge fastening groove, and the rolled edge piece of the female plate rib are rolled edge connected. The rolled edge sliding piece is slidably connected to the fixed base.

2. The roof panel tenon-and-mortise rolled edge sliding support connection node according to claim 1, characterized in that: The support has a single-sided transverse lower support plate in the middle of the base web, and the lower support plate is placed on the lower side of the male plate rib horizontal support plate or the female plate rib horizontal support plate.

3. The roof panel tenon-and-mortise rolled edge sliding support connection node according to claim 1, characterized in that: The support has a double-sided transverse lower support plate in the middle of the base web. The lower support plate is placed on the lower side of the male plate rib horizontal support plate and the female plate rib horizontal support plate, respectively.

4. The roof panel tenon-and-mortise rolled edge sliding support connection node according to claim 1, characterized in that: The web of the male plate rib and the web of the female plate rib are longitudinally continuously welded.

5. The roof panel tenon-and-rolled sliding support connection node according to claim 1, characterized in that: A continuous sealant is applied along the longitudinal direction of the male and female ribs between adjacent male and female ribs.

6. A roof panel tenon-and-rolled sliding support connection node according to any one of claims 1, 4, or 5, characterized in that: The web of the male plate under the rib and the web of the female plate under the rib are intermittently welded in the non-support connection area.

7. The roof panel tenon-and-mortise rolled edge sliding support connection node according to claim 1, characterized in that: The end of the horizontal connecting plate of the fixed base is bent into a vertical stiffening plate, and one vertical edge of the stiffening plate is embedded or welded to the web of the fixed base.

8. The roof panel tenon-and-mortise rolled edge sliding support connection node according to claim 1, characterized in that: The bottom of the horizontal connecting plate of the fixed base is provided with a rigid isolation pad made of plastic or nylon.

9. A roof panel tenon-and-mortise rolled edge sliding support connection node according to claim 1, characterized in that: The roof panel is made of a metal plate with a thickness of 0.5~1.2mm, the fixing base is made of a metal plate with a thickness of 1.0~3.0mm, and the rolled edge sliding plate is made of a metal plate with a thickness of 0.3~1.2mm.

10. A roof panel tenon-and-mortise rolled edge sliding support connection node according to claim 9, characterized in that: The inner or outer surface, or both inner and outer surfaces, of the roof panel are covered with an anti-corrosion adhesive film, TPO film, PVC film, or metal composite film with a film thickness of 0.1~2mm. The film is pre-coated in a roll material factory or made by pressing and bonding roof panels.

11. The roof panel tenon-and-mortise rolled edge sliding support connection node according to claim 1, characterized in that: The installation sequence of the support and the roof panel rib is as follows: Install the male rib of the roof panel in place; on the right side of the male rib, the edge-rolling groove of the support edge-rolling slide is fastened at an angle to the upper part of the male rib edge-rolling piece; then rotate clockwise to insert the slide connecting piece into the transverse constraint groove of the male rib; tightly attach the web of the edge-rolling piece to the upper web of the male rib, and tightly attach the base web to the lower web of the male rib; fix the horizontal connecting plate of the base to the lower structure with screws; then fasten the edge-rolling piece of the female rib at an angle to the upper part of the edge-rolling groove; rotate the female rib clockwise to tightly attach the upper web of the female rib to the upper web of the male rib; finally, roll the male edge-rolling piece, the edge-rolling groove, and the female edge-rolling piece together.

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