A roof cornice structure

Abstract

The utility model discloses a kind of roof cornice structures of fabricated building, it is related to fabricated building technical field.The technical problem of the traditional metal roof cornice using screw direct fixation to cause contact site to be prone to form water leakage point, influence waterproof effect is solved.This structure includes cornice crossbeam, support beam sealing plate and cornice connecting piece;Cornice crossbeam is fixed with roof longitudinal beam end part, support beam sealing plate is L-shaped, its first side is welded with roof support beam end part and upper edge is coplanar with support beam upper surface, second side is in contact with cornice crossbeam;Cornice connecting piece is fixed in sealing plate first side, its cornice baffle stops roof panel end part, cornice fixed plate is in contact with roof panel upper surface and is fixed by screw.The cavity is formed by the combination of roof panel, cornice baffle, sealing plate first side and connecting piece base part.Rainwater can be drained by roof panel, and infiltrated rainwater is discharged through cavity end part, effectively avoid water leakage, improve roof waterproof effect.

Description

Technical Field

[0001] This utility model relates to the field of architecture, and in particular to a roof eaves structure. Background Technology

[0002] The field of prefabricated building technology is demonstrating strong growth momentum and significant innovation vitality. Driven by both continued policy support and increasing market-driven forces, technological innovations are constantly emerging in this field, effectively promoting the transformation and upgrading of the construction industry. In traditional metal roof structures, the eaves are mostly constructed using bent steel sheets connected to the frame and roof panels with screws. This direct screw fixing to the roof panels and frame creates gaps at the contact points, becoming potential leak points. Over time, rainwater can easily seep through the screw gaps, affecting the overall waterproofing of the roof. Utility Model Content

[0003] In view of this, the present utility model discloses a roof eaves structure for connecting with the roof panel and roof support beam of the roof structure, including an eaves crossbeam, a support beam end plate, and eaves connectors;

[0004] The eaves beam is set horizontally, and the lower part of the roof support beam (excluding the end position) is fixedly connected to the eaves beam.

[0005] The support beam end plate is set on one side of the eaves beam. Its cross-section is an L-shaped structure, including a first end plate and a second end plate. The first end plate is set vertically. The end of the roof support beam is fixedly connected to the first end plate by welding. The upper edge of the first end plate is coplanar with the upper surface of the roof support beam. The end of the second end plate away from the first end plate abuts against the eaves beam.

[0006] The eaves connector includes a connector base, an eaves baffle, an eaves fixing plate, and a first fastening screw;

[0007] The base of the connector is fixedly mounted on the side surface of the first side of the sealing plate. The eaves baffle is obliquely arranged to block the end of the roof panel. The eaves fixing plate is vertically arranged on the upper end of the eaves baffle. The end of the roof panel abuts against the eaves baffle. The upper surface of the roof panel contacts the lower surface of the eaves fixing plate. The first fastening screw passes through the eaves fixing plate and the roof panel to fix the two together.

[0008] As a supplement to the technical solution of this utility model, the end of the second side of the supporting beam sealing plate away from the first side of the sealing plate is provided with an upward curved edge, and the curved edge and the eaves beam are coated with sealant.

[0009] As a supplement to the technical solution of this utility model, the base part of the connecting piece of the eaves connector has a U-shaped cross-section, and its U-shaped opening is away from the direction of the first side of the sealing plate of the support beam sealing plate. The side of the base part of the connecting piece that contacts the first side of the sealing plate of the support beam sealing plate is fixedly connected to the first side of the sealing plate by screwing.

[0010] As a supplement to the technical solution of this utility model, it also includes eaves fasteners;

[0011] The upper top wall and lower bottom wall of the connector base are each provided with a protruding first snap-fit ​​part. The first snap-fit ​​part is a protruding plate-shaped structure. The direction of the first snap-fit ​​part away from the U-shaped opening end of the connector base is a limiting plane.

[0012] The eaves fastener includes a vertically arranged blocking plate. The surface of the blocking plate has a second locking portion that mates with the first locking portion. The second locking portion includes two sets of vertically arranged elastic locking plates. Each locking plate has a locking protrusion at its end. The locking protrusion on the upper locking plate is located on its upper surface, and the locking protrusion on the lower locking plate is located on its lower surface. The surface of the locking protrusion near the blocking plate is a locking surface that mates with the first locking portion.

[0013] The second snap-fit ​​part of the eaves fastener is located inside the base part of the connector. The snap-fit ​​protrusion on the snap-fit ​​plate is located on the side of the first snap-fit ​​part away from the U-shaped opening end of the base part of the connector. The locking surface on the snap-fit ​​protrusion contacts the limiting plane on the first snap-fit ​​part, thus restricting the separation of the eaves fastener from the base part.

[0014] As a supplement to the technical solution of this utility model, it also includes a U-groove connector, a first bolt, and a second bolt;

[0015] The U-groove connector has a U-shaped cross-section, including a first side panel, a second side panel, and a base plate. The base plate is horizontally arranged, and the first side panel and the second side panel are vertically arranged at both ends of the base plate. The eaves beam is located between the first side panel and the second side panel of the U-groove connector. The first side panel, the eaves beam, and the second side panel are connected by a first bolt. The base plate of the U-groove connector is in contact with the upper surface of the eaves beam. The second bolt passes through the base plate and the eaves beam to fix the two together.

[0016] As a supplement to the technical solution of this utility model, it also includes a canopy mechanism and a second fastening screw. The canopy mechanism includes a lower base plate, an upper top plate, and an intermediate connecting plate.

[0017] The upper top plate is positioned above the lower bottom plate. The right side of the upper top plate is spaced apart from and parallel to the lower bottom plate. The left side of the upper top plate is bent downwards to fix the left end of the upper top plate to the left end of the lower bottom plate. The middle connecting plate is positioned between the right side of the upper top plate and the lower bottom plate, and the middle connecting plate is perpendicular to the lower bottom plate, so that the upper top plate, the lower bottom plate, and the middle connecting plate together form a groove structure with an opening on the right side.

[0018] The eaves connector also includes an eaves baffle protrusion, which is disposed on the side surface of the eaves baffle away from the roof panel.

[0019] The right side of the upper top plate of the eaves mechanism is located on the upper surface of the eaves baffle protrusion of the eaves connector. The second fastening screw passes through the upper top plate and the eaves baffle protrusion of the roof eaves in sequence to fix the upper top plate and the eaves baffle protrusion. In this state, the right end of the lower bottom plate of the eaves mechanism abuts against the eaves baffle of the eaves connector.

[0020] As a supplement to the technical solution of this utility model, the middle connecting plate of the eaves mechanism is provided with a connecting plate protrusion on the side near the eaves baffle protrusion, and the eaves baffle protrusion is provided with a slot for the connecting plate protrusion to be inserted, and the protrusion of the eaves baffle protrusion is inserted into the slot on the eaves baffle protrusion.

[0021] As a supplement to the technical solution of this utility model, the eaves beam, the support beam sealing plate, the eaves connector, and the eaves mechanism are all made of aluminum alloy.

[0022] Beneficial Effects: In one aspect, the roof eaves structure disclosed in this utility model forms a cavity by the roof panel, eaves baffle, first side of the sealing plate, and base of the connector, allowing infiltrated rainwater to drain through the end of the cavity. Combined with the sealant between the second curved edge of the sealing plate and the eaves beam, and the waterproof sealant at the junction of the eaves mechanism and the eaves baffle, a multi-layered waterproofing system of "structural drainage + sealing protection" is formed, avoiding leakage points caused by traditional screw connections and significantly improving the reliability of roof waterproofing. The use of U-groove connectors to fix the roof support beam and eaves beam with double bolts, combined with the protrusion-slot fit between the eaves mechanism and the eaves connector, strengthens the rigidity of the joint connection. The snap-fit ​​structure of the eaves fastener and the base of the connector enables rapid assembly while ensuring connection stability, comprehensively improving the wind load and deformation resistance of the roof eaves structure. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the three-dimensional structure of the roof structure system.

[0024] Figure 2 This is a three-dimensional structural diagram of the roof eaves structure of this utility model.

[0025] Figure 3This is a side view schematic diagram of the roof eaves structure.

[0026] Figure 4 This is a side view schematic diagram of the roof eaves structure.

[0027] Figure 5 A schematic diagram of the supporting beam sealing plate structure.

[0028] Figure 6 This is a schematic diagram of the eaves mechanism.

[0029] Figure 7 This is a schematic diagram of the assembly structure of the eaves fasteners and connector base.

[0030] Figure 8 This is a schematic diagram of the assembly structure of the U-groove connector and the roof support beam.

[0031] Figure 9 This is a schematic diagram of the U-groove connector structure.

[0032] Figure 10 This is a schematic diagram of the eaves connector structure.

[0033] In the diagram: 1. Roof panel, 2. Roof support beam, 3. Roof horizontal beam, 4. Roof longitudinal beam, 5. Roof vertical beam, 6. Eaves horizontal beam, 7. Support beam end plate, 8. Eaves connector, 9. Connector base, 10. Eaves baffle, 11. Eaves fixing plate, 12. First fastening screw, 13. First snap-fit ​​part, 14. Eaves fastener, 15. End plate, 16. Second snap-fit ​​part, 17. Snap-fit ​​plate, 1 8. Snap-fit ​​protrusion; 19. U-groove connector; 20. First bolt; 21. Second bolt; 22. First side panel; 23. Second side panel; 24. Base plate; 25. Eaves mechanism; 26. Second fastening screw; 27. Lower base plate; 28. Upper top plate; 29. ​​Intermediate connecting plate; 30. Eaves baffle protrusion; 31. Connecting plate protrusion; 32. First side of sealing plate; 33. Second side of sealing plate. Detailed Implementation

[0034] In the description of this utility model, it should be understood that 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 indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," 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; 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, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] like Figure 1 The diagram shows a schematic of the roof structure system, including roof panels 1, roof support beams 2, roof eaves structure, and roof frame. The roof frame includes roof beams 3, roof longitudinal beams 4, and roof vertical beams 5.

[0037] The roof vertical beam 5 is vertically installed in the middle of the roof longitudinal beam 4. A roof horizontal beam 3 is installed at the upper end of the roof vertical beam 5, and a roof eaves structure is installed at the end of the roof longitudinal beam 4. The roof panel 1 is installed at an angle. The upper end of the roof support beam 2 is connected to the roof horizontal beam 3, and the lower end is connected to the roof eaves structure. The roof panel 1 is installed on the roof support beam 2. Several sets of roof support beams 2 are evenly distributed along the length of the roof horizontal beam 3.

[0038] The roof overhang structure is the portion of the roof structure that extends beyond the exterior wall, serving to facilitate roof drainage, protect the exterior wall, and enhance the building's aesthetics. For example... Figures 2 to 10 As shown, the roof eaves structure includes eaves beam 6, supporting beam end plate 7, and eaves connector 8.

[0039] The eaves beam 6 is arranged horizontally and is fixedly connected to the end of the roof longitudinal beam 4, which can be done by bolting or welding. The lower part of the roof support beam 2, excluding the end, is fixedly connected to the eaves beam 6.

[0040] The supporting beam end plate 7 is located on the side of the eaves beam 6 away from the roof longitudinal beam 4. Its cross-section is L-shaped, including a first end plate 32 and a second end plate 33. The first end plate 32 is vertically oriented. The end of the roof supporting beam 2 is fixedly connected to the first end plate 32 by welding. Correspondingly, the end section of the roof supporting beam 2 is vertical, allowing it to fully fit against the first end plate 32 for easy welding. The upper edge of the first end plate 32 is coplanar with the upper surface of the roof supporting beam 2. The end of the second end plate 33, away from the first end plate 32, abuts against the eaves beam 6.

[0041] The eaves connector 8 includes a connector base 9, an eaves baffle 10, an eaves fixing plate 11, and a first fastening screw 12.

[0042] The connector base 9 is fixedly disposed on the side surface of the first side 32 of the sealing plate, specifically on the side surface of the first side 32 of the sealing plate away from the roof support beam 2.

[0043] The eaves baffle 10 is obliquely arranged to block the end of the roof panel 1. The eaves fixing plate 11 is arranged on the upper end of the eaves baffle 10, and the eaves baffle 10 and the eaves fixing plate 11 are arranged perpendicularly to each other. The lower end of the roof panel 1 abuts against the eaves baffle 10, and the upper surface of the roof panel 1 contacts the lower end surface of the eaves fixing plate 11. The first fastening screw 12 passes through the eaves fixing plate 11 and the roof panel 1 to fix the two together.

[0044] In the above structure, the roof panel 1, the eaves baffle 10, the first side 32 of the supporting beam sealing plate 7, and the connecting base 9 can be enclosed to form a cavity.

[0045] Through the above settings, the roof eaves can be fixedly connected to the roof panel 1 and the roof support beam 2. At the same time, rainwater on the roof panel 1 can be guided through the roof panel 1, so that some rainwater can be discharged from the top of the eaves fixing plate 11. Even if some rainwater seeps into the space between the eaves fixing plate 11 and the roof panel 1, it will eventually flow into the cavity formed by the roof panel 1, the eaves baffle 10, the first side 32 of the support beam sealing plate 7, and the connector base, and finally flow out from the end of the cavity, so that the water can be quickly drained away from the roof. This solves the technical problem that the traditional method of using steel bent plates with screws to connect the roof can create water leakage points at the screw locations, affecting the waterproofing effect.

[0046] As a supplement to the above technical solution, the end of the second side 33 of the support beam sealing plate 7 away from the first side 32 of the sealing plate is provided with an upward curved edge, and the curved edge and the eaves beam 6 are coated with sealant to form the first waterproof barrier.

[0047] As a supplement to the above technical solution, the connecting base part 9 of the eaves connector 8 has a U-shaped cross-section, with its U-shaped opening facing away from the first side 32 of the supporting beam sealing plate 7. The side of the connecting base part 9 that contacts the first side 32 of the supporting beam sealing plate 7 is fixedly connected to the first side 32 of the sealing plate by screwing. During installation, the screw is placed in the U-shaped groove of the connecting base part 9 and passes through the side near the first side 32 of the sealing plate to screw into the first side 32 of the sealing plate.

[0048] As a supplement to the above technical solution, in order to improve the aesthetics and prevent the screws that connect the base part 9 of the connector to the first side 32 of the sealing plate from rusting, an eaves fastener 14 is also included.

[0049] A first snap-fit ​​portion 13 is provided on the inner sidewall at the U-shaped opening end of the connector base portion 9, such as... Figure 7As shown, the upper top wall and lower bottom wall of the connector base 9 are provided with protruding first snap-fit ​​parts 13. The first snap-fit ​​parts 13 are protruding plate-shaped structures, and the direction of the first snap-fit ​​parts 13 away from the U-shaped opening end of the connector base 9 is a limiting plane.

[0050] The eaves fastener 14 includes a vertically arranged blocking plate 15. The surface of the blocking plate 15 has a second locking portion 16 adapted to the first locking portion 13. The second locking portion 16 includes two sets of vertically arranged elastic locking plates 17. Each locking plate 17 has a locking protrusion 18 at its end. The locking protrusion 18 on the upper locking plate 17 is located on its upper surface, and the locking protrusion 18 on the lower locking plate 17 is located on its lower surface. The surface of the locking protrusion 18 near the blocking plate 15 is a locking surface that mates with the first locking portion 13.

[0051] When the eaves fastener 14 is assembled with the connecting base 9, the second snap-fit ​​portion 16 of the eaves fastener 14 is inserted into the connecting base 9. When the snap-fit ​​protrusion 18 on the snap-fit ​​plate 17 passes the first snap-fit ​​portion 13, the snap-fit ​​plate 17 of the second snap-fit ​​portion 16 undergoes elastic deformation until the snap-fit ​​protrusion 18 on the snap-fit ​​plate 17 passes the first snap-fit ​​portion 13. In this state, the locking surface on the snap-fit ​​protrusion 18 contacts the limiting plane on the first snap-fit ​​portion 13, thus restricting the separation of the eaves fastener 14 from the connecting base.

[0052] As a preferred technical solution of this utility model, it also includes a U-groove connector 19, a first bolt 20, and a second bolt 21.

[0053] The U-shaped connector 19 has a U-shaped cross-section and includes a first side panel 22, a second side panel 23, and a base plate 24. The base plate 24 is horizontally positioned, with the first side panel 22 and the second side panel 23 vertically positioned at both ends. The roof support beam 2 is connected to the eaves beam 6 via the U-shaped connector 19. Specifically, the eaves beam 6 is located between the first side panel 22 and the second side panel 23 of the U-shaped connector 19, and the first side panel 22, the eaves beam 6, and the second side panel 23 are connected by a first bolt 20. The base plate 24 of the U-shaped connector 19 contacts the upper surface of the eaves beam 6, and a second bolt 21 passes through the base plate 24 and the eaves beam 6 to fix them together.

[0054] The above settings ensure the connection stability between the roof support beam 2 and the eaves beam 6.

[0055] As a preferred technical solution of this utility model, it also includes a canopy mechanism 25 and a second fastening screw 26. The canopy mechanism 25 includes a lower base plate 27, an upper top plate 28, and an intermediate connecting plate 29.

[0056] The upper top plate 28 is positioned above the lower bottom plate 27. The right side of the upper top plate 28 is spaced apart from and parallel to the lower bottom plate 27. The left side of the upper top plate 28 is bent downwards to fix the left end of the upper top plate 28 to the left end of the lower bottom plate 27. The intermediate connecting plate 29 is positioned between the right side of the upper top plate 28 and the lower bottom plate 27, and is perpendicular to the lower bottom plate 27, so that the upper top plate 28, the lower bottom plate 27, and the intermediate connecting plate 29 together form a groove structure with an opening on the right side.

[0057] The eaves connector 8 also includes an eaves baffle protrusion 30, which is disposed on the side surface of the eaves baffle 10 away from the roof panel 1.

[0058] The eaves mechanism 25 is mounted on the eaves connector 8. When the eaves mechanism 25 is assembled with the eaves connector 8, the right side of the upper top plate 28 of the eaves mechanism 25 is located on the upper surface of the eaves baffle protrusion 30 of the eaves connector 8. The second fastening screw 26 passes through the upper top plate 28 and the eaves baffle protrusion 30 of the roof eaves in sequence to fix the upper top plate 28 and the eaves baffle protrusion 30 together. In this state, the right end of the lower bottom plate 27 of the eaves mechanism 25 abuts against the eaves baffle 10 of the eaves connector 8. The upper surface of the right side of the upper top plate 28 of the eaves mechanism 25 is on the same plane as the upper surface of the eaves fixing plate 11, so that rainwater can flow smoothly through the eaves fixing plate 11 to the upper top plate 28 of the eaves mechanism 25.

[0059] The above-mentioned arrangement allows the eaves mechanism 25 to be fixedly connected to the eaves connector 8, and the arrangement of the eaves mechanism 25 can increase the length of the rainwater flow path.

[0060] As a supplement to the above technical solution, the middle connecting plate 29 of the eaves mechanism 25 is provided with a connecting plate protrusion 31 on the side near the eaves baffle protrusion 30. The eaves baffle protrusion 30 is provided with a slot for the connecting plate protrusion 31 to be inserted. When the two are assembled, the protrusion of the eaves baffle protrusion 30 is inserted into the slot on the eaves baffle protrusion 30, thereby improving the connection stability between the two.

[0061] As a supplement to the above technical solution, the right end of the lower base plate 27 of the eaves mechanism 25 and the eaves baffle 10 of the eaves connector 8 are coated with waterproof adhesive to achieve waterproof function.

[0062] As a supplement to the utility model's technical solution, the eaves beam 6, supporting beam sealing plate 7, eaves connector 8, and eaves mechanism 25 are all made of aluminum alloy. Using aluminum alloy, whose density is only 1 / 3 that of steel, significantly simplifies the transportation and installation process. Furthermore, the aluminum alloy surface can be treated with processes such as fluorocarbon spraying and anodizing to form an acid- and alkali-resistant, UV-resistant protective layer, maintaining its metallic texture or customized color for a long time while avoiding rust. The diverse surface treatment options can also match the appearance requirements of different architectural styles, achieving a unity of functionality and decoration.

[0063] As a supplement to the technical solution of this utility model, all the aforementioned joints can be professionally sealed with sealant, ensuring structural airtightness while achieving a minimalist aesthetic for the building facade through a concealed design. The "waterproof structure + sealant" combination scheme employs a precise interlocking structure to ensure basic sealing, combined with a highly weather-resistant sealant to form secondary protection. This design can withstand deformation under strong wind loads and resist material expansion and contraction caused by long-term temperature changes, fundamentally solving the problem of water seepage at the eaves.

[0064] The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be included within the protection scope of the present invention.

Claims

1. A roof eaves structure for connecting with the roof panels (1) and roof support beams (2) of the roof structure, characterized in that, Includes eaves beam (6), support beam end plate (7), eaves connector (8); The eaves beam (6) is set horizontally, and the lower non-end position of the roof support beam (2) is fixedly connected to the eaves beam (6); The supporting beam sealing plate (7) is set on one side of the eaves beam (6), and its cross section is an L-shaped structure, including a first side (32) and a second side (33). The first side (32) of the sealing plate is set vertically, and the end of the roof supporting beam (2) is fixedly connected to the first side (32) of the sealing plate by welding. The upper edge of the first side (32) of the sealing plate is coplanar with the upper surface of the roof supporting beam (2), and the end of the second side (33) of the sealing plate away from the first side (32) of the sealing plate abuts against the eaves beam (6). The eaves connector (8) includes a connector base (9), an eaves baffle (10), an eaves fixing plate (11), and a first fastening screw (12). The base part (9) of the connector is fixedly installed on the side surface of the first side (32) of the sealing plate. The eaves baffle (10) is obliquely set to block the end of the roof panel (1). The eaves fixing plate (11) is vertically set on the upper end of the eaves baffle (10). The end of the roof panel (1) abuts against the eaves baffle (10). The upper surface of the roof panel (1) contacts the lower surface of the eaves fixing plate (11). The first fastening screw (12) passes through the eaves fixing plate (11) and the roof panel (1) to fix the two together.

2. The roof eaves structure according to claim 1, characterized in that, The end of the second side (33) of the support beam sealing plate (7) away from the first side (32) of the sealing plate is provided with an upward curved edge, and the curved edge is coated with sealant between itself and the eaves beam (6).

3. The roof eaves structure according to claim 1, characterized in that, The connecting base (9) of the eaves connector (8) has a U-shaped cross section. Its U-shaped opening is away from the direction of the first side (32) of the sealing plate of the support beam sealing plate (7). The side of the connecting base (9) that contacts the first side (32) of the sealing plate of the support beam sealing plate (7) is fixedly connected to the first side (32) of the sealing plate by screwing.

4. The roof eaves structure according to claim 1, characterized in that, Also includes roof fasteners (14); The upper top wall and lower bottom wall of the connector base part (9) are provided with a protruding first snap-fit ​​part (13). The first snap-fit ​​part (13) is a protruding plate-shaped structure. The direction of the first snap-fit ​​part (13) away from the U-shaped opening end of the connector base part (9) is a limiting plane. The eaves fastener (14) includes a vertically arranged blocking plate (15). A second locking part (16) adapted to the first locking part (13) is provided on the surface of the blocking plate (15). The second locking part (16) includes two sets of vertically arranged elastic locking plates (17). The ends of the locking plates (17) are provided with locking protrusions (18). The locking protrusions (18) on the upper locking plate (17) are located on the upper surface of the upper locking plate (17), and the locking protrusions (18) on the lower locking plate (17) are located on the lower surface of the lower locking plate (17). The surface of the locking protrusions (18) near the blocking plate (15) is a locking surface that mates with the first locking part (13). The second snap-fit ​​portion (16) of the eaves fastener (14) is located inside the connector base portion (9). The snap-fit ​​protrusion (18) on the snap-fit ​​plate (17) is located on the side of the first snap-fit ​​portion (13) on the connector base portion (9) away from the U-shaped opening end of the connector base portion (9). The locking surface on the snap-fit ​​protrusion (18) contacts the limiting plane on the first snap-fit ​​portion (13) to restrict the separation of the eaves fastener (14) from the connector base portion.

5. A roof eaves structure according to claim 1, characterized in that, It also includes a U-groove connector (19), a first bolt (20), and a second bolt (21); The U-groove connector (19) has a U-shaped cross section, including a first side panel (22), a second side panel (23), and a base plate (24). The base plate (24) is arranged horizontally, and the first side panel (22) and the second side panel (23) are arranged vertically at both ends of the base plate (24). The eaves beam (6) is located between the first side panel (22) and the second side panel (23) of the U-groove connector (19). The first side panel (22), the eaves beam (6), and the second side panel (23) are connected by the first bolt (20). The base plate (24) of the U-groove connector (19) contacts the upper surface of the eaves beam (6). The second bolt (21) passes through the base plate (24) and the eaves beam (6) to fix the two together.

6. A roof eaves structure according to claim 1, characterized in that, It also includes a canopy mechanism (25) and a second fastening screw (26). The canopy mechanism (25) includes a lower base plate (27), an upper top plate (28), and a middle connecting plate (29). The upper top plate (28) is positioned above the lower bottom plate (27). The right side of the upper top plate (28) is spaced apart from and parallel to the lower bottom plate (27). The left side of the upper top plate (28) is bent downwards so that the left end of the upper top plate (28) is fixedly connected to the left end of the lower bottom plate (27). The middle connecting plate (29) is positioned between the right side of the upper top plate (28) and the lower bottom plate (27), and the middle connecting plate (29) is perpendicular to the lower bottom plate (27), so that the upper top plate (28), the lower bottom plate (27), and the middle connecting plate (29) together form a groove structure with an opening on the right side. The eaves connector (8) also includes an eaves baffle protrusion (30), which is provided on the side surface of the eaves baffle (10) away from the roof panel (1); The right side of the top plate (28) of the eaves mechanism (25) is located on the upper surface of the eaves baffle protrusion (30) of the eaves connector (8). The second fastening screw (26) passes through the top plate (28) and the eaves baffle protrusion (30) of the roof eaves in sequence to fix the top plate (28) and the eaves baffle protrusion (30) in a fixed connection. In this state, the right end of the bottom plate (27) of the eaves mechanism (25) abuts against the eaves baffle (10) of the eaves connector (8).

7. A roof eaves structure according to claim 6, characterized in that, The middle connecting plate (29) of the eaves mechanism (25) is provided with a connecting plate protrusion (31) on one side near the eaves baffle protrusion (30). The eaves baffle protrusion (30) is provided with a slot for inserting the connecting plate protrusion (31). The protrusion of the eaves baffle protrusion (30) is inserted into the slot on the eaves baffle protrusion (30).

8. A roof eaves structure according to claim 6, characterized in that, The eaves beam (6), the support beam sealing plate (7), the eaves connector (8), and the eaves mechanism (25) are all made of aluminum alloy.

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