Long overhang metal canopy roof expansion joint anti-leakage structure

Abstract

The utility model discloses a long overhanging metal rain shed roof expansion joint anti -infiltration structure belongs to expansion joint drainage anti -infiltration structure technical field, including support framework, support framework one end is fixed with the rain shed expansion joint one side's keel, the other end straddles rain shed expansion joint and is located the top of rain shed expansion joint, and support framework other end has the gap between rain shed roof, and is fixed with the rain shed roof on the one end of the gusset plate away from the gap, and the one end of gusset plate is close to the gap is bent down and forms the bending vertical board, and the bottom of bending vertical board is bent down and forms V -shaped flanging to the direction close to rain shed expansion joint, and the rain shed roof close to V -shaped flanging is fixed with the baffle, and the baffle is located below gusset plate, and the top of baffle is bent down and forms the bending baffle, and bending baffle is located V -shaped flanging just above. The utility model can effectively prevent the water flow to pour into the expansion joint inside, reduce the water seepage leakage hidden danger.

Description

Technical Field

[0001] This utility model relates to the technical field of expansion joint drainage and seepage prevention structure, and in particular to a seepage prevention structure for expansion joints of long cantilever metal canopy roofs. Background Technology

[0002] In the construction industry, awnings are common building components, primarily serving to shelter from wind and rain and protect building entrances and related areas. Long, cantilevered, arched awnings, due to their unique design, offer significant advantages in meeting architectural aesthetic requirements, but also present numerous challenges for waterproofing projects.

[0003] Long cantilevered canopy roof panels are subject to expansion and contraction due to temperature changes. Furthermore, the canopy's curved, upward-sloping profiled steel sheet has a complex curvature and a large construction surface, leading to accumulated expansion and contraction, further complicating the waterproofing process. Currently, existing canopy waterproofing technologies are structurally unsuitable for accommodating the significant expansion and contraction of long cantilevered curved canopies, resulting in poor waterproofing performance, low durability, and susceptibility to leakage.

[0004] To address this, a leak-proof structure for expansion joints in long cantilever metal canopy roofs is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a leak-proof structure for expansion joints of long cantilever metal canopy roofs, aiming to solve or improve at least one of the above-mentioned technical problems.

[0006] To achieve the above objectives, the present invention provides the following solution: The present invention provides a leak-proof structure for the expansion joint of a long cantilever metal canopy roof, including a support frame. One end of the support frame is fixedly connected to the keel on one side of the expansion joint of the canopy, and the other end spans the expansion joint of the canopy and is located above the expansion joint of the canopy. There is a gap between the other end of the support frame and the roof of the canopy.

[0007] A buckle plate is fixed to the supporting frame. The end of the buckle plate away from the gap is fixed to the roof of the canopy. The end of the buckle plate near the gap is bent downward to form a bent vertical plate. The bottom of the bent vertical plate is bent towards the expansion joint of the canopy to form a V-shaped fold. A baffle is fixed to the roof of the canopy near the V-shaped fold. The baffle is located below the buckle plate. The top of the baffle is bent downward to form a bent fold plate. The bent fold plate is located directly above the V-shaped fold.

[0008] Preferably, the support frame is inverted L-shaped, the vertical plate of the support frame is fixed to the keel on one side of the canopy expansion joint, the horizontal plate of the support frame spans the canopy expansion joint and is located above the canopy expansion joint, the canopy roof is generally wavy, and at least one protrusion on the canopy roof near the V-shaped fold is located below the horizontal plate of the support frame.

[0009] Preferably, the buckle plate includes a first Z-shaped folding plate and a C-shaped folding plate. The opening of the C-shaped folding plate faces downward and covers the top of the support frame. The first Z-shaped folding plate is arranged horizontally. One end of the first Z-shaped folding plate and the C-shaped folding plate are fixed to the vertical plate of the support frame. The other end of the first Z-shaped folding plate is fixed to the roof of the canopy. The vertical side of the C-shaped folding plate away from the first Z-shaped folding plate is the bent vertical plate.

[0010] Preferably, a second Z-shaped folding plate is fixedly connected below the first Z-shaped folding plate. The second Z-shaped folding plate is arranged longitudinally and is fixedly connected to any protrusion of the canopy roof.

[0011] Preferably, the baffle includes a third Z-shaped fold plate and a fourth Z-shaped fold plate. The third Z-shaped fold plate is arranged longitudinally, and its bottom is fixedly connected to any protrusion on the roof of the canopy. The fourth Z-shaped fold plate is arranged laterally, and its top is fixedly connected to the middle of the third Z-shaped fold plate. One end of the fourth Z-shaped fold plate is bent downward to form the bent fold plate, and the other end of the fourth Z-shaped fold plate is bent upward.

[0012] Preferably, a V-shaped expansion joint plate is provided at the expansion joint of the canopy, and the two ends of the V-shaped expansion joint plate are respectively fixed to the roof of the canopy.

[0013] Preferably, the top of the C-shaped fold plate is provided with a drainage slope.

[0014] This utility model discloses the following technical effects: the buckle plate is supported by a supporting frame, so that the buckle plate covers the expansion joint of the awning and spans both sides of the expansion joint, thereby covering the expansion joint and diverting rainwater above the expansion joint to both sides of the expansion joint; one end of the buckle plate is fixed to the roof of the awning, and the other end forms a combined shielding structure with the bent vertical plate and the bent fold plate on the baffle through a bent vertical plate, which effectively prevents water from flowing back into the expansion joint and reduces the risk of water seepage and leakage; since the bent fold plate is located directly above the V-shaped fold on the bent vertical plate, the two do not contact each other, thus forming an open shielding form. Even when the awning expands or contracts and the bent fold plate and the V-shaped fold are relatively displaced, a good waterproof effect is maintained. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2This is a schematic diagram of the structure of the third Z-shaped folding plate and the fourth Z-shaped folding plate in this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the second Z-shaped folding plate in this utility model.

[0019] In the diagram: 1. Support frame; 2. Awning roof; 3. Awning expansion joint; 4. V-shaped fold; 5. Bending fold plate; 6. First Z-shaped fold plate; 7. C-shaped fold plate; 8. Self-tapping screw; 9. Second Z-shaped fold plate; 10. Third Z-shaped fold plate; 11. Fourth Z-shaped fold plate; 12. V-shaped expansion joint plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] Reference Figures 1-3 This utility model provides a leak-proof structure for the expansion joint of a long cantilever metal canopy roof, including a support frame 1. One end of the support frame 1 is fixed to the keel on one side of the canopy expansion joint 3, and the other end spans the canopy expansion joint 3 and is located above the canopy expansion joint 3. There is a gap between the other end of the support frame 1 and the canopy roof 2.

[0023] A buckle plate is fixed to the support frame 1. The end of the buckle plate away from the gap is fixed to the canopy roof 2. The end of the buckle plate near the gap is bent downward to form a bent vertical plate. The bottom of the bent vertical plate is bent towards the expansion joint 3 of the canopy to form a V-shaped fold 4. A baffle is fixed to the canopy roof 2 near the V-shaped fold 4. The baffle is located below the buckle plate. The top of the baffle is bent downward to form a bent fold plate 5. The bent fold plate 5 is located directly above the V-shaped fold plate 4.

[0024] In this embodiment, the canopy roof 2 is made of corrosion-resistant profiled steel sheet, which is fixed to the frame with stainless steel self-tapping screws. Due to temperature and other factors, the steel sheet has a 3%-5% thermal deformation rate. Therefore, expansion joints are usually installed during the construction of large curved roof panels, and these expansion joints are the weakest points in the entire roof, making it prone to leaks. This application supports the buckle plate by supporting the frame 1, allowing the buckle plate to cover the canopy expansion joint 3 and span both sides of the expansion joint 3, thereby covering the expansion joint 3 and diverting rainwater above the expansion joint 3 to both sides of the expansion joint. One end of the buckle plate is fixed to the canopy roof 2, and the other end forms a combined shielding structure with the bent vertical plate and the bent folded plate 5 on the baffle, effectively preventing water from flowing back into the canopy expansion joint 3 and reducing the risk of water seepage and leakage. Since the bent folded plate 5 is located directly above the V-shaped folded edge 4 on the bent vertical plate, the two do not contact each other, thus forming an open shielding form. Even when the canopy expands or contracts, and the bent folded plate 5 and the V-shaped folded edge 4 shift relative to each other, a good waterproof effect is maintained. Even if some rainwater flows back into the space between the bent plate 5 and the V-shaped fold 4, the rainwater will flow away along the inner channel of the V-shaped fold 4.

[0025] In some alternative embodiments, the support frame 1 is inverted L-shaped, the vertical plate of the support frame 1 is fixed to the keel on one side of the canopy expansion joint 3, the horizontal plate of the support frame 1 spans the canopy expansion joint 3 and is located above the canopy expansion joint 3, the canopy roof 2 is generally wavy, and at least one protrusion on the canopy roof 2 near the V-shaped fold 4 is located below the horizontal plate of the support frame 1.

[0026] In some alternative embodiments, the buckle includes a first Z-shaped folding plate 6 and a C-shaped folding plate 7. The opening of the C-shaped folding plate 7 faces downward and covers the top of the support frame 1. The first Z-shaped folding plate 6 is arranged horizontally. One end of the first Z-shaped folding plate 6 and the C-shaped folding plate 7 are fixed to the vertical plate of the support frame 1 by self-tapping screws 8. The other end of the first Z-shaped folding plate 6 is fixed to the canopy roof 2. The vertical side of the C-shaped folding plate 7 away from the first Z-shaped folding plate 6 is a bent vertical plate.

[0027] Both the first Z-shaped folding plate 6 and the C-shaped folding plate 7 are made of aluminum alloy. During installation, one vertical edge of the first Z-shaped folding plate 6 contacts the outer wall of the support frame 1. The C-shaped folding plate 7 is then fastened to the top of the support frame 1, with the C-shaped folding plate 7 located outside the vertical edge of the first Z-shaped folding plate 6. Then, ST5.5*25 stainless steel self-tapping screws are used to fasten the C-shaped folding plate 7 and the first Z-shaped folding plate 6 to the support frame 1. The other side of the C-shaped folding plate 7 is also fixed to the support frame 1 by ST5.5*25 stainless steel self-tapping screws 8.

[0028] In some alternative embodiments, a second Z-shaped folding plate 9 is fixedly connected below the first Z-shaped folding plate 6. The second Z-shaped folding plate 9 is arranged longitudinally and is fixedly connected to any protrusion of the canopy roof 2.

[0029] The first Z-shaped folding plate 6 is fixed to the canopy roof 2 by the second Z-shaped folding plate 9, thereby forming a closed form at one end of the canopy expansion joint 3.

[0030] In some alternative embodiments, the baffle includes a third Z-shaped fold plate 10 and a fourth Z-shaped fold plate 11. The third Z-shaped fold plate 10 is arranged longitudinally, and its bottom is fixedly connected to any protrusion of the canopy roof 2. The fourth Z-shaped fold plate 11 is arranged laterally, and its top is fixedly connected to the middle of the fourth Z-shaped fold plate 11. One end of the fourth Z-shaped fold plate 11 is bent downward to form a bent fold plate 5, and the other end of the fourth Z-shaped fold plate 11 is bent upward.

[0031] In this embodiment, the third Z-shaped folding plate 10 is a Z-shaped galvanized angle steel with a thickness of 4mm, which is fixedly installed on the protrusion of the canopy roof 2 by self-tapping screws. The fourth Z-shaped folding plate 11 is a Z-shaped aluminum plate folding plate. The third Z-shaped folding plate 10 and the fourth Z-shaped folding plate 11 are fixedly connected by bolts and nuts.

[0032] In some alternative embodiments, a V-shaped expansion joint plate 12 is provided at the expansion joint 3 of the canopy, and the two ends of the V-shaped expansion joint plate 12 are respectively fixed to the roof 2 of the canopy.

[0033] Furthermore, the V-shaped expansion joint plate 12 is a V-shaped aluminum alloy expansion joint plate.

[0034] In some alternative embodiments, the top of the U-shaped fold plate 7 is provided with a drainage slope.

[0035] Furthermore, the roof slope of the folded plate 7 is ≥5%.

[0036] In use, this invention supports the C-shaped folded plate 7 via a supporting frame 1, allowing the C-shaped folded plate 7 to cover the expansion joint 3 of the awning and span both sides of the expansion joint 3. This effectively shields the expansion joint 3 and diverts rainwater above the expansion joint 3 to both sides. One end of the C-shaped folded plate 7 is fixed to the awning roof 2 via a first Z-shaped folded plate 6 and a second Z-shaped folded plate 9, while the other end forms a combined shielding structure with a fourth Z-shaped folded plate 11, effectively preventing water from flowing back into the expansion joint and reducing the risk of seepage and leakage. Since the bent folded plate 5 is located directly above the V-shaped folded edge 4 on the bent vertical plate, the two do not contact each other, thus forming an open shielding form. Even when the awning expands or contracts, causing relative displacement between the bent folded plate 5 and the V-shaped folded edge 4, a good waterproof effect is maintained. Furthermore, even if some rainwater flows back into the space between the bent folded plate 5 and the V-shaped folded edge 4, the rainwater will flow away along the inner channel of the V-shaped folded edge 4.

[0037] This utility model has the following technical effects:

[0038] 1. The innovative use of the C-shaped folding plate 7 in the parallel water flow direction forms a V-shaped folding edge 4 at its end. The V-shaped folding edge 4, together with the third Z-shaped folding plate 10 and the fourth Z-shaped folding plate 11, forms an "L+Z" interlocking groove, which blocks the backflow path of water and effectively prevents water from flowing back into the expansion joint and causing the risk of water seepage and leakage.

[0039] 2. The C-shaped fold plate 7 adopts a pre-optimized design, with a 5% drainage slope in the direction of water flow to guide rainwater to both sides of the expansion joint.

[0040] 3. A V-shaped expansion joint plate 12 is added at the roof purlin position of the expansion joint 3 of the canopy. The V-shaped angle is about 60°, forming an internal drainage channel for the expansion joint. Even if water flows into the expansion joint, it can be drained in an organized manner, forming a double insurance.

[0041] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 utility model.

[0042] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A leak-proof structure for expansion joints of long cantilever metal canopy roofs, characterized in that, Includes a support frame (1), one end of which is fixed to the keel on one side of the canopy expansion joint (3), and the other end spans the canopy expansion joint (3) and is located above the canopy expansion joint (3), and there is a gap between the other end of the support frame (1) and the canopy roof (2). A buckle plate is fixedly connected to the support frame (1). The end of the buckle plate away from the gap is fixedly connected to the canopy roof (2). The end of the buckle plate near the gap is bent downward to form a bent vertical plate. The bottom of the bent vertical plate is bent towards the canopy expansion joint (3) to form a V-shaped fold (4). A baffle is fixedly connected to the canopy roof (2) near the V-shaped fold (4). The baffle is located below the buckle plate. The top of the baffle is bent downward to form a bent fold plate (5). The bent fold plate (5) is located directly above the V-shaped fold (4).

2. The anti-leakage structure for expansion joints of long cantilever metal canopy roofs according to claim 1, characterized in that: The support frame (1) is inverted L-shaped. The vertical plate of the support frame (1) is fixed to the keel on one side of the canopy expansion joint (3). The horizontal plate of the support frame (1) spans the canopy expansion joint (3) and is located above the canopy expansion joint (3). The canopy roof (2) is generally wavy. At least one protrusion on the canopy roof (2) near the V-shaped fold (4) is located below the horizontal plate of the support frame (1).

3. The anti-leakage structure for expansion joints of long cantilever metal canopy roofs according to claim 2, characterized in that: The buckle plate includes a first Z-shaped folding plate (6) and a C-shaped folding plate (7). The opening of the C-shaped folding plate (7) faces downward and covers the top of the support frame (1). The first Z-shaped folding plate (6) is arranged horizontally. One end of the first Z-shaped folding plate (6) and the C-shaped folding plate (7) are fixed to the vertical plate of the support frame (1). The other end of the first Z-shaped folding plate (6) is fixed to the canopy roof (2). The vertical side of the C-shaped folding plate (7) away from the first Z-shaped folding plate (6) is the bent vertical plate.

4. The anti-leakage structure for expansion joints of long cantilever metal canopy roofs according to claim 3, characterized in that: A second Z-shaped folding plate (9) is fixedly connected below the first Z-shaped folding plate (6). The second Z-shaped folding plate (9) is arranged longitudinally and is fixedly connected to any protrusion of the canopy roof (2).

5. The anti-leakage structure for expansion joints of long cantilever metal canopy roofs according to claim 1, characterized in that: The baffle includes a third Z-shaped fold plate (10) and a fourth Z-shaped fold plate (11). The third Z-shaped fold plate (10) is arranged longitudinally, and the bottom of the third Z-shaped fold plate (10) is fixedly connected to any protrusion of the canopy roof (2). The fourth Z-shaped fold plate (11) is arranged laterally, and the top of the third Z-shaped fold plate (10) is fixedly connected to the middle of the fourth Z-shaped fold plate (11). One end of the fourth Z-shaped fold plate (11) is bent downward to form the bent fold plate (5), and the other end of the fourth Z-shaped fold plate (11) is bent upward.

6. The anti-leakage structure for expansion joints of long cantilever metal canopy roofs according to claim 1, characterized in that: A V-shaped expansion joint plate (12) is provided at the expansion joint (3) of the canopy, and the two ends of the V-shaped expansion joint plate (12) are respectively fixed to the roof (2) of the canopy.

7. The anti-leakage structure for expansion joints of long cantilever metal canopy roofs according to claim 3, characterized in that: The top of the zigzag fold plate (7) is provided with a drainage slope.

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