Cornice cover plate, cornice node structure and building
By using one-piece molded eaves covers and hot air welding technology, the installation process of eaves covers is simplified, solving the problems of complex welding and the risk of incomplete welding, and achieving low-cost and efficient waterproofing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU CANLON BUILDING MATERIALS
- Filing Date
- 2025-05-20
- Publication Date
- 2026-05-19
AI Technical Summary
The existing eaves cover installation involves a complex welding process, high labor costs, and a high risk of incomplete welding, which increases the potential for water leakage.
Design a one-piece molded cornice cover that requires only one welding of the edges. Combining hot air welding technology with homogeneous materials simplifies the welding process, reduces labor costs, and minimizes the risk of incomplete welds.
It effectively simplifies welding processes, reduces labor costs, minimizes the risk of incomplete welds, improves waterproofing, and reduces the risk of leaks.
Smart Images

Figure CN224259749U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of building technology, and in particular to an eaves cover, an eaves node structure, and a building. Background Technology
[0002] In metal roofing technology, waterproofing is achieved by installing a waterproof membrane over the metal gutter and then installing eaves covers between the roof panel and the metal gutter. However, existing eaves cover installation involves numerous welding steps, complex welding processes, high labor costs, and a greater risk of incomplete welds, leading to increased leakage problems. Utility Model Content
[0003] This application provides an eaves cover, an eaves node structure, and a building to solve or alleviate one or more technical problems in the prior art.
[0004] As one aspect of the embodiments of this application, this application embodiment provides an eaves cover plate, including:
[0005] The first sub-plate includes troughs arranged periodically in a first direction and crests connecting adjacent troughs, with the crests protruding from the troughs.
[0006] The second sub-plate includes a first connecting plate connected to one end of the trough portion in a second direction and a second connecting plate connected to one end of the crest portion near the first connecting plate, with adjacent first and second connecting plates connected together.
[0007] The first sub-plate and the second sub-plate are integrally formed.
[0008] In one embodiment, the first sub-plate and the second sub-plate are arranged at an angle of 85-100°.
[0009] In one embodiment, the trough portion at both ends of the first direction has a dimension in the first direction that is 0.5 times larger than the dimension in the first direction of the trough portion between two adjacent crest portions.
[0010] In one embodiment, the eaves cover is homogeneous with the waterproofing layer of the roof panel and / or the waterproofing membrane of the metal gutter.
[0011] As another aspect of the embodiments of this application, the embodiments of this application provide an eaves node structure, including:
[0012] Roofing panels;
[0013] Gutter;
[0014] Waterproof membrane, one part of which covers the outside of the gutter, and the other part of which covers part of the roof panel;
[0015] As in any of the above embodiments, the eaves cover covers the outer side of a portion of the roof panel and a portion of the waterproof membrane.
[0016] In one embodiment, the eaves node structure further includes a purlin, a first fastener, and a first cover plate. The first fastener connects the roof panel, the gutter, and the purlin. The first cover plate covers the outer side of the roof panel and at least covers the first fastener. The edge of the first cover plate is sealed and fixed to the roof panel.
[0017] In one embodiment, the eaves node structure further includes a support layer and an insulation layer, with a portion of the support layer laid on the purlins and the insulation layer filling the space between the support layer and the roof panel.
[0018] In one embodiment, the eaves node structure further includes a keel, a second fastener, and a second cover plate. The second fastener connects the gutter and the keel, and the second cover plate covers the outside of the waterproof membrane and at least covers the second fastener. The edge of the second cover plate is sealed and fixed to the roof panel.
[0019] In one embodiment, the edge of the eaves cover is fixed to the surface of the roof panel and the waterproof membrane by hot air welding.
[0020] As another aspect of the embodiments of this application, the embodiments of this application provide a building including an eaves node structure as described in any of the above embodiments.
[0021] The above-described technical solution in this application embodiment allows the eaves cover to be integrally formed, requiring only one welding process during installation. This effectively reduces welding steps, simplifies welding treatment, and effectively reduces labor costs. Furthermore, the reduced amount of welding effectively lowers the risk of incomplete welding, further reducing the potential for water leakage.
[0022] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of this application will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description
[0023] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the various drawings denote the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings depict only some embodiments disclosed in this application and should not be construed as limiting the scope of this application.
[0024] Figure 1 A three-dimensional structural schematic diagram of a single-peaked eaves cover sheet according to an embodiment of the first aspect of this application is shown.
[0025] Figure 2A three-dimensional structural schematic diagram of a double-peaked cornice cover sheet according to an embodiment of the first aspect of this application is shown.
[0026] Figure 3 A three-dimensional structural schematic diagram of a three-peaked cornice cover sheet according to an embodiment of the first aspect of this application is shown.
[0027] Figure 4 A cross-sectional schematic diagram of the eaves node structure according to an embodiment of the second aspect of this application is shown.
[0028] Explanation of reference numerals in the attached figures:
[0029] 10. Eaves cover plate; 11. First sub-board; 111. Corridor trough; 112. Corridor crest; 12. Second sub-board; 121. First connecting plate; 122. Second connecting plate; 20. Roof panel; 30. Waterproof membrane; 40. First fastener; 50. Insulation layer; 60. Supporting layer; 70. Purlin; 80. Keel; 90. Gutter; 100. First covering plate; 110. Second fastener; 120. Second covering plate. Detailed Implementation
[0030] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this application. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.
[0031] With the advancement of science and technology, metal materials are widely used in the construction industry, and metal roofing has become a popular choice, especially integrated tile roofing systems. Integrated tile roofing systems include metal ridges, metal roofs, metal gutters, and metal skylights. During rainfall, if the drainage system is inefficient, rainwater will stagnate in the metal gutters. Over time, the gutters will corrode, increasing the risk of leaks. If rainfall is excessive and the drainage system cannot keep up, the water level in the metal gutters will rise, allowing rainwater to backflow into the building through the gaps between the gutters and the roof panels. Poor drainage in the metal gutters can create breeding grounds for mosquitoes, especially in summer, increasing the risk of mosquito infestation and disease transmission. Mosquitoes and dust can also enter the building through the gaps between the gutters and the roof panels. Severe corrosion of the metal gutters requires replacement of the entire system, resulting in high maintenance costs. Eaves covers, developed based on the integrated tile roofing system, are sealed and fixed to the metal roof and gutters, achieving perfect waterproofing. Currently, the installation of eaves covers involves numerous welding procedures, which are complex and labor-intensive. Furthermore, the increased risk of incomplete welding leads to greater potential for water leakage.
[0032] Figure 1A three-dimensional structural schematic diagram of a single-peaked eaves cover sheet according to an embodiment of the first aspect of this application is shown. Figure 2 A three-dimensional structural schematic diagram of a double-peaked cornice cover sheet according to an embodiment of the first aspect of this application is shown. Figure 3 A three-dimensional structural schematic diagram of a three-peaked cornice cover sheet according to an embodiment of the first aspect of this application is shown. Figures 1 to 3 As shown, the eaves cover 10 includes an integrally formed first sub-plate 11 and a second sub-plate 12.
[0033] The first sub-panel 11 is used to seal and cover the outer side of the roof panel 20 during use. Exemplarily, the first sub-panel 11 seals and covers the outer side of the roof panel 20 near the gutter 90 during use, thus minimizing the size of the first sub-panel 11 in the second direction and saving materials and costs. The first sub-panel 11 includes periodically spaced troughs 111 and crests 112 connecting adjacent troughs 111, with the crests 112 protruding from the troughs 111. The troughs 111 correspond to the troughs of the roof panel 20, and the crests 112 correspond to the crests of the roof panel 20, thereby allowing the first sub-panel 11 to be almost attached to the outer side of the roof panel 20, facilitating the hot-air welding of the edges of the first sub-panel 11 to the waterproof layer outside the roof panel 20. The specific number of crests 112 and troughs 111 depends on the dimensions of the eaves cover 10 in the first direction. At least two troughs 111 appear periodically in the first direction, and the number of crests 112 is one less than the number of troughs 111. The crests 112 are generally trapezoidal structures, smaller at the top and larger at the bottom, similar to or the same as the crest structure of the roof panel 20. Exemplarily, the crests 112 may include a straight section and two opposing inclined sections, each inclined section having one end connected to the straight section and the other end connected to the trough 111. The troughs 111 are plate-like structures with uniform or constant thickness.
[0034] The second sub-plate 12 includes a first connecting plate 121 connected to one end of the trough portion 111 in a second direction and a second connecting plate 122 connected to one end of the crest portion 112 near the first connecting plate 121. Adjacent first connecting plates 121 and second connecting plates 122 are connected. For example, the first connecting plate 121 corresponds to the trough portion 111, and the second connecting plate 122 corresponds to the crest portion 112. The ends of the first connecting plate 121 away from the trough portion 111 and the ends of the second connecting plate 122 away from the crest portion 112 are flush; or, the first connecting plate 121 corresponds to both the trough portion 111 and the crest portion 112, but the first connecting plate 121 is only connected to the trough portion 111, and the second connecting plate 122 serves as a filler between the first connecting plate 121 and the crest portion 112 to close the gap between the first connecting plate 121 and the crest portion 112.
[0035] It should be noted that the first direction is perpendicular to the second direction; when the eaves cover 10 is installed in the roofing system, the first direction is parallel to the extension direction of the eaves, and the second direction is parallel to the tilt direction of the roof.
[0036] The first sub-plate 11 and the second sub-plate 12 are integrally formed to form the eaves cover 10. When the eaves cover 10 is installed in the roofing system, only the edge of the eaves cover 10 needs to be welded, that is, a single welding is performed. There is no need to weld the components that make up the eaves cover 10, thus reducing the welding process and simplifying the welding process, which can effectively reduce labor costs. The reduction in welding processes and welding volume can reduce the occurrence of incomplete welds and further reduce the risk of water leakage.
[0037] In one embodiment, the first sub-plate 11 and the second sub-plate 12 are arranged at an angle of 85-100°; preferably, the angle between the first sub-plate 11 and the second sub-plate 12 is 90±1°.
[0038] Thus, during installation, the first sub-board 11 can cover a portion of the outer side of the roof panel 20, and the second sub-board 12 can cover a portion of the outer side of the waterproof membrane 30 of the metal gutter 90. With the help of hot air welding, a closed space can be formed covering the roof panel 20 and the waterproof membrane 30. On the one hand, this can prevent rainwater flowing down the roof panel 20 from entering the house through the gap between the first sub-board 11 and the roof panel 20. On the other hand, it can prevent rainwater from backflowing into the house through the gap between the gutter 90 and the roof panel 20, which may be caused by the rising water level of the gutter 90.
[0039] In one embodiment, the trough portion 111 at both ends of the first direction has a dimension in the first direction that is 0.5 times greater than the dimension in the first direction of the trough portion 111 between two adjacent crest portions 112.
[0040] Thus, during the installation of the eaves cover 10, adjacent eaves cover 10 can overlap, and the overlap is fixed by hot air welding, so that adjacent eaves cover 10 form a whole, which has a good waterproof effect and also has a good heat insulation effect.
[0041] In one embodiment, the eaves cover 10 is made of the same material as the waterproof layer of the roof panel 20 and / or the waterproof membrane 30 of the metal gutter 90. For example, the waterproof layer of the roof panel 20 and / or the waterproof membrane 30 of the metal gutter 90 are made of thermoplastic polyolefin or polyvinyl chloride, and correspondingly, the eaves cover 10 is made of thermoplastic polyolefin or polyvinyl chloride. The thermoplastic polyolefin material, specifically a novel waterproof material made from thermoplastic polyolefin (TPO) synthetic resin that combines ethylene propylene rubber and polypropylene using advanced polymerization technology, with the addition of antioxidants, anti-aging agents, and softeners, can be reinforced with polyester fiber mesh as an internal reinforcing material to create a reinforced waterproof material, belonging to synthetic polymer waterproof materials.
[0042] By designing the material of the eaves cover 10 to be consistent with the material of the waterproof layer of the roof panel 20 and / or the waterproof membrane 30 of the metal gutter 90, it is easy to carry out welding operations of homogeneous materials, and ensure the seal between the eaves cover 10 and the roof panel 20 and between the eaves cover 10 and the waterproof membrane 30.
[0043] Figure 4 A cross-sectional schematic diagram of the eaves node structure according to an embodiment of the second aspect of this application is shown. Figure 4 As shown, the eaves node structure includes a roof panel 20, a gutter 90, a waterproof membrane 30, and an eaves cover 10 according to any of the above embodiments.
[0044] The roof panel 20 is inclined, with the side near the ridge higher than the side near the eaves. The roof panel 20 has periodically spaced troughs and crests in a first direction. The roof panel 20 includes a metal sheet layer and a waterproof layer attached to the outside of the metal sheet layer. The first sub-plate 11 of the eaves cover 10 covers the outside of the waterproof layer, and the edge of the first sub-plate 11 is connected to the waterproof layer by hot air welding. When the roof panel 20 is applied to a fused tile roofing system or an eaves node structure, the metal sheet layer faces inwards towards the building, and the waterproof layer faces outwards towards the building. Exemplarily, the metal sheet layer may include galvanized steel, and the waterproof layer may be made of thermoplastic polyolefin or polyvinyl chloride.
[0045] The gutter 90 has a U-shaped structure or a Z-shaped structure; it should be noted that this embodiment does not limit the other shapes of the gutter 90. The gutter 90 is made of bent metal sheet; it should be noted that this embodiment does not limit the other forming methods of the gutter 90.
[0046] A portion of the waterproof membrane 30 covers the outside of the gutter 90, and another portion of the waterproof membrane 30 covers a portion of the roof panel 20. The material of the waterproof membrane 30 may include thermoplastic polyolefin or polyvinyl chloride. The waterproof membrane 30 and the gutter 90, as well as the waterproof membrane 30 and the roof panel 20, can be fixed by hot air welding. After welding, the waterproof membrane 30 can form a complete waterproof surface, thereby preventing roof leaks.
[0047] The eaves cover 10 covers a portion of the roof panel 20 and a portion of the waterproof membrane 30 on the outside. For example, the first sub-panel 11 covers the end of the roof panel 20 near the gutter 90, and the second sub-panel 12 covers a portion of the waterproof membrane 30 near the roof panel 20.
[0048] It should be noted that "outer side" refers to the side facing outwards. In the context of the installation method in this embodiment, the outer side of the gutter 90 refers to the groove side of the U-shaped structure of the gutter 90, the outer side of the roof panel 20 refers to the upper side of the roof panel 20, and the outer side of the waterproof membrane 30 refers to the side facing the groove of the gutter 90 and away from the metal sheet of the gutter 90.
[0049] The eaves cover 10 is integrally molded and applied in the eaves structure. When it is welded and fixed to the roof panel 20 and the waterproof membrane 30, it only needs to be welded around the eaves cover 10. There is no need to weld the components of the eaves cover 10, which reduces at least one welding process, simplifies the welding process, and reduces labor costs. Moreover, due to the reduction in the amount of welding, the risk of false welding is effectively reduced, further reducing the risk of water leakage.
[0050] In one embodiment, the eaves node structure further includes a purlin 70, a first fastener 40, and a first cover plate 100. The first fastener 40 connects the roof panel 20, the gutter 90, and the purlin 70. The first cover plate 100 covers the outer side of the roof panel 20 and at least covers the first fastener 40. The edge of the first cover plate 100 is sealed and fixed to the roof panel 20. Exemplarily, the purlin 70, as one of the load-bearing structures of the roof, may include light steel or structural steel. Exemplarily, the first fastener 40 may include rivets, self-tapping screws, non-self-tapping screws, or other components that can serve a fixing connection function; preferably, the first fastener 40 may be a self-tapping screw for easy installation and connection. Exemplarily, the first cover plate 100 may be fixed to the roof panel 20 by hot air welding.
[0051] Thus, the first fastener 40 can firmly fix the roof panel 20 and the gutter 90 to the purlin 70, preventing relative movement between the gutter 90 and the roof panel 20, ensuring that the welded eaves cover 10 will not be pulled into cracks, thereby preventing water leakage; the first cover 100 can effectively prevent the first fastener 40 from being exposed, preventing the first fastener 40 from contacting the natural environment, thereby preventing the first fastener 40 from rusting or falling off, and thus preventing roof leakage.
[0052] In one embodiment, the eaves node structure further includes a support layer 60 and an insulation layer 50. A portion of the support layer 60 is laid on the purlin 70, and the insulation layer 50 fills the space between the support layer 60 and the roof panel 20. Exemplarily, the support layer 60 may include wire mesh, which can both support the insulation layer 50 and reduce the weight of the support layer 60 itself. Exemplarily, the insulation layer 50 may include a flocculent or filamentous insulation material that can be supported by the wire mesh. Exemplarily, the support layer 60 and the insulation layer 50 are passed through by a first fastener 40. As the first fastener 40 is tightened, the support layer 60 and the insulation layer 50 on the support layer 60 are clamped between the edge of the gutter 90 on the purlin 70 and the roof panel 20.
[0053] Thus, by laying the support layer 60 on the purlin 70, the insulation layer 50 can be effectively fixed in the roof structure, thereby ensuring the insulation effect of the roof system; by connecting the roof panel 20, insulation layer 50, support layer 60, gutter 90 and purlin 70 with the first fastener 40, the structural stability of each part of the roof system is ensured.
[0054] In one embodiment, the eaves node structure further includes a keel 80, a second fastener 110, and a second cover plate 120. The second fastener 110 connects the gutter 90 and the keel 80. The second cover plate 120 covers the outside of the waterproof membrane 30 and at least covers the second fastener 110. The edge of the second cover plate 120 is sealed and fixed to the roof panel 20. Exemplarily, the keel 80, as the main structure supporting the weight of the gutter 90, may include light steel or structural steel. Exemplarily, the second fastener 110 may include rivets, self-tapping screws, non-self-tapping screws, or other components that can serve a fixing connection function; preferably, the second fastener 110 may use self-tapping screws for easy installation and connection. Exemplarily, the second cover plate 120 may be fixed to the roof panel 20 by hot air welding.
[0055] In this way, the weight of the gutter 90 is supported by the keel 80, and the gutter 90 is stably fixed to the keel 80 by the second fastener 110, preventing the gutter 90 from shifting and affecting the eaves cover 10. For example, the eaves cover 10 may crack due to the movement of the gutter 90, or the edges of the eaves cover 10 may no longer be sealed due to the pull of the gutter 90. The second cover 120 effectively prevents the second fastener 110 from being exposed, avoiding contact with the natural environment, thereby preventing the second fastener 110 from rusting or falling off, and thus preventing roof leaks.
[0056] In one embodiment, the edge of the eaves cover 10 is fixed to the surface of the roof panel 20 and the waterproof membrane 30 by hot air welding. Specifically, the edge of the first sub-panel 11 is fixed to the surface waterproof layer of the roof panel 20 by hot air welding, and the edge of the second sub-panel 12 is fixed to the waterproof membrane 30 by hot air welding.
[0057] Hot air welding can achieve a sealed connection, and it is not easily aged by the natural environment, which can ensure the reliability and stability of the connection and extend the life of the roof structure.
[0058] The third aspect of this application provides a building that includes the eaves node structure in any embodiment of the second aspect of this application.
[0059] The eaves cover, eaves node structure, and other components of the building described in the above embodiments can adopt various technical solutions that are now and will be known to those skilled in the art, and will not be described in detail here.
[0060] In the description of this specification, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0061] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0062] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0063] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0064] The foregoing disclosure provides many different implementations or examples for carrying out different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described above. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.
[0065] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this application, and these should all be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A type of eaves cover, characterized in that, include: The first sub-plate includes troughs arranged periodically in a first direction, and crests connecting adjacent troughs, the crests protruding from the troughs. The second sub-plate includes a first connecting plate connected to one end of the trough portion in a second direction and a second connecting plate connected to one end of the crest portion near the first connecting plate, with adjacent first and second connecting plates connected together. The first sub-plate and the second sub-plate are integrally formed.
2. The eaves cover plate according to claim 1, characterized in that, The first sub-board and the second sub-board are set at an angle of 85-100°.
3. The eaves cover according to claim 1, characterized in that, The troughs at both ends of the first direction have a size in the first direction that is 0.5 times larger than the size of the trough between two adjacent crests in the first direction.
4. The eaves cover according to claim 1, characterized in that, The eaves cover is of the same material as the waterproof layer of the roof panel and / or the waterproof membrane of the metal gutter.
5. An eaves node structure, characterized in that, include: Roofing panels; Gutter; A waterproof membrane, a portion of which covers the outside of the gutter and another portion of which covers a portion of the roof panel; The eaves cover as described in any one of claims 1-4, wherein the eaves cover covers the outer side of a portion of the roof panel and a portion of the waterproof membrane.
6. The eaves node structure according to claim 5, characterized in that, The eaves node structure also includes purlins, a first fastener, and a first cover plate. The first fastener connects the roof panel, gutter, and purlin. The first cover plate covers the outer side of the roof panel and at least covers the first fastener. The edge of the first cover plate is sealed and fixed to the roof panel.
7. The eaves node structure according to claim 6, characterized in that, The eaves node structure also includes a support layer and an insulation layer. A portion of the support layer is laid on the purlin, and the insulation layer is filled between the support layer and the roof panel.
8. The eaves node structure according to claim 5, characterized in that, The eaves node structure also includes a keel, a second fastener, and a second cover plate. The second fastener connects the gutter and the keel. The second cover plate covers the outside of the waterproof membrane and at least covers the second fastener. The edge of the second cover plate is sealed and fixed to the roof panel.
9. The eaves node structure according to claim 5, characterized in that, The edge of the eaves cover is fixed to the surface of the roof panel and the waterproof membrane by hot air welding.
10. A building, characterized in that, Includes the eaves node structure as described in any one of claims 5 to 9.