Roof arc R angle flashing manufacturing mold

By using a mold to create a roof arc-shaped flashing, the problems of uneven flashing, easy cracking, and poor drainage in traditional construction have been solved. This has enabled efficient and precise construction and a beautiful finished product, while ensuring smooth drainage.

CN223838573UActive Publication Date: 2026-01-27SCEGC MECHANIZED CONSTR GRP COMPANY
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Patent Information

Application Number
CN202520267708.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-19
Publication Date
2026-01-27
Estimated Expiration
2035-02-19

AI Technical Summary

Technical Problem

Traditional roof flashing construction methods result in uneven and unsmooth flashing arcs, which can easily lead to large-area hollowing and cracking of the flashing strips. This results in low construction efficiency, poor forming effect, poor quality reliability, and poor drainage.

Method used

The roof flashing is made using a mold consisting of a steel arc template, an edge-sealing steel template, a bottom sealing steel template, and a hinged top cover. The distance between the bottom of the flashing and the wall base is adjusted by adjusting the push-pull screw. Quick disassembly and assembly are achieved by combining a movable fixing frame and spring buckles. Galvanized steel plates are used to improve the strength and stability of the template.

Benefits of technology

It improves construction efficiency and molding quality, ensures smooth and flowing flashing arcs, accurate drainage slope, and unobstructed drainage. The molds are also reusable, which improves the precision and aesthetics of construction.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a roof arc R angle flashing manufacturing die which comprises an adjusting push-pull screw rod, an edge sealing steel formwork and a steel arc formwork. Edge sealing steel formworks are fixed to the two sides of the steel arc formwork, the lower end of the steel arc formwork is connected with a bottom sealing steel formwork, and a hinge type upper cover plate is fixed to the upper end of the steel arc formwork. The steel arc formwork, the hinge type upper cover plate, the edge sealing steel formwork and the bottom sealing steel formwork form an arc flashing construction space, one end of the adjusting push-pull screw penetrates through the bottom sealing steel formwork, extends to the arc flashing construction space and is fixedly connected with a gasket, and the other end of the adjusting push-pull screw is exposed outside. A movable fixing frame is fixed to the steel arc formwork and comprises cross arm angle steel and pressing opening angle steel. The cross arm angle steel is fixed at the upper end and the lower end of the steel arc template; and the notch pressing angle steel is arranged at the joint of the cross arm angle steel and the steel arc template. After concrete pouring is completed, the forming effect is attractive, the size is accurate, the quality is reliable, and the distance between the flashing bottom and the wall root can be effectively adjusted.
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Description

Technical Field

[0001] This utility model relates to the field of building construction, and in particular to a mold for making roof arc R-corner flashing. Background Technology

[0002] To protect the parapet walls surrounding the building's roof from rain erosion and to safeguard the roof's waterproofing layer, waterproofing treatment, known as flashing, is required at the intersection of the parapet wall and the roof slab. The traditional method involves creating a rounded or 45° bevel with mortar at the joint between the roof and the vertical parapet wall, laying a waterproof membrane, pre-grooving a groove in the parapet wall, pressing the membrane end into the groove, and securing it with strips or cement nails. After sealing the groove, cement mortar is manually applied to smooth the waterproof membrane. However, due to the complex structure of flashing, large areas of hollowness and cracking frequently occur after construction, along with cracks in the strips at the flashing's termination, failing to provide adequate protection for the waterproof membrane. Furthermore, traditional construction methods are not quick enough for installation and dismantling, have low construction team assembly efficiency, cannot effectively adjust the distance between the bottom of the flashing and the wall base, do not accurately grasp the required dimensions, have an unattractive appearance after concrete pouring, poor quality reliability, and the finished flashing R-angle arc is not smooth or fluid enough, the drainage slope is inaccurate, and drainage is not smooth. Utility Model Content

[0003] The purpose of this utility model is to provide a mold for making roof arc R-corner flashing, so as to overcome the shortcomings of the existing technology, such as the flashing arc not being smooth enough after construction, the easy occurrence of large-area hollow cracking, and the cracking of the fastener strip at the flashing end.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A mold for fabricating roof arc-shaped R-corner flashing includes an adjusting push-pull screw, an edge-sealing steel template, and a steel arc template. The edge-sealing steel template is fixedly connected to both sides of the steel arc template, which acts as a side enclosure for the concrete to ensure the shape and dimensional accuracy of the flashing. A bottom sealing steel mold is connected to the lower end of the steel arc template, and a hinged top cover plate is fixedly connected to the upper end of the steel arc template. An arc flashing construction space is formed between the steel arc template, the hinged top cover plate, the edge-sealing steel template, and the bottom sealing steel mold. One end of the adjusting push-pull screw extends through the bottom sealing steel mold into the arc flashing construction space and is fixedly connected to a gasket, while the other end is exposed.

[0006] A movable fixing frame is fixed on the steel arc template. The movable fixing frame includes a crossbeam angle steel and a pressing angle steel. The crossbeam angle steel is fixed at both ends of the steel arc template, and a pressing angle steel is set at the connection between the crossbeam angle steel and the steel arc template.

[0007] Furthermore, the adjusting push-pull screw includes a threaded screw, a first fixing component, and a second fixing component. One end of the threaded screw extends through the bottom sealing steel mold to the arc flashing construction space and is fixed to the gasket by the second fixing component. The other end is exposed and fixed by the first fixing component. The threaded screw enables positional movement, thereby changing the position of the gasket within the arc flashing construction space, and thus adjusting the distance between the bottom of the flashing and the wall base.

[0008] Furthermore, the hinged top cover is connected to the steel arc template via a hinge lock.

[0009] Furthermore, the steel arc template and the edge-sealing steel template are grooved at the processing plant to enhance the strength and stability of the template.

[0010] Furthermore, the steel arc template and the edge-sealing steel template are fixed by spring hooks, which facilitates disassembly after construction and improves the turnover efficiency of the mold.

[0011] Furthermore, the movable mounting bracket is equipped with a push-pull handle.

[0012] Furthermore, the steel arc template and the bottom sealing steel mold are fixed using a groove locking process.

[0013] Furthermore, the movable fixing frame is a quick-release and quick-install structure, and disassembly is completed by tightening bolts.

[0014] Furthermore, the steel arc template, hinged top cover plate, edge sealing steel template, and bottom sealing steel mold are all made of 3mm galvanized steel sheet rolled in the processing plant.

[0015] Furthermore, the hinged top cover is provided with a concrete pouring port.

[0016] Compared with the prior art, the present invention has the following beneficial technical effects:

[0017] This utility model provides a mold for fabricating roof arc-shaped R-corner flashing. It combines a movable fixed bracket with a steel arc template, a hinged top cover plate, an edge-sealing steel template, and a bottom-sealing steel mold, allowing for quick installation and disassembly and significantly improving construction efficiency. The arc-shaped steel plate mold, machined by a machine tool, ensures precise dimensions, resulting in a beautiful and reliable finish after concrete pouring. The completed R-corner flashing is smooth and flowing, with accurate drainage slope and unobstructed drainage. The adjustable push-pull screw at the bottom allows for effective adjustment of the distance between the bottom of the flashing and the wall base, with a range of 200-250mm.

[0018] Specifically, this utility model utilizes a hinged top cover plate with a concrete pouring port to effectively and rationally pour concrete, facilitating compaction with a concrete vibrator. After the lower concrete is poured and compacted, the hinged top cover plate is used to lock the opening, allowing for the re-pouring of the remaining small portion of concrete on top, making construction convenient. The steel arc formwork and edge-sealing steel formwork are fixed with spring clips, making disassembly easy after pouring. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a roof arc R-corner flashing manufacturing mold according to an embodiment of this utility model.

[0020] Figure 2 This is a front view of a roof arc R-corner flashing fabrication mold according to an embodiment of this utility model.

[0021] Figure 3 This is a cross-sectional view of a roof arc R-corner flashing fabrication mold according to an embodiment of this utility model.

[0022] Figure 4 As an embodiment of this utility model Figure 1 A schematic diagram showing the partial disassembly.

[0023] In the diagram, 1. Movable fixing frame, 2. Adjustable push-pull screw, 3. Steel arc template, 4. Hinged top cover, 5. Edge sealing steel template, 6. Push-pull handle, 7. Crossbeam angle steel, 8. Pressing angle steel, 9. Bottom sealing steel mold, 10. Gasket, 11. First fixing component, 12. Through thread screw, 13. Second fixing component, 14. Hinge lock, 15. Spring latch. Detailed Implementation

[0024] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0025] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0026] Traditional methods for fabricating roof flashing are slow to install and dismantle, have low construction efficiency, cannot effectively adjust the distance between the bottom of the flashing and the wall base, lack precision in determining the required dimensions, result in an unattractive finish after concrete pouring, poor quality and reliability, and an uneven, non-smooth, and poorly angled (R-angle) flashing arc, leading to inaccurate drainage slope and poor drainage. Therefore, this paper provides a mold for fabricating roof arc-shaped (R-angle) flashing. (See reference...) Figures 1 to 4 The system includes a movable fixed frame 1, an adjusting push-pull screw 2, a steel arc template 3, a hinged upper cover plate 4, an edge-sealing steel template 5, and a bottom sealing steel mold 9. The steel arc template 3, the hinged upper cover plate 4, the edge-sealing steel template 5, and the bottom sealing steel mold 9 form an arc flashing construction space. One end of the adjusting push-pull screw 2 passes through the bottom sealing steel mold 9 and extends into the arc flashing construction space, and is fixedly connected to a gasket 10. The other end is exposed. The adjusting push-pull screw 2 is mainly used to adjust the distance between the bottom of the flashing and the wall base.

[0027] Preferably, the steel arc template 3 is fixedly connected to the edge-sealing steel template 5 on both sides, the lower end of the steel arc template 3 is connected to the bottom sealing steel mold 9, and the upper end of the steel arc template 3 is fixedly connected to the hinged top cover plate 4 for easy opening and closing; the hinged top cover plate 4 is provided with a concrete pouring port, which allows concrete to be directly poured into the mold from the port, ensuring the smooth progress of concrete pouring; the steel arc template 3, the hinged top cover plate 4, the edge-sealing steel template 5 and the bottom sealing steel mold 9 together construct a circular arc flashing construction space that meets the requirements, so that the poured concrete forms a specific circular arc shape;

[0028] To ensure the overall stability of the template, a movable fixing frame 1 is installed for positioning and reinforcement. During the concrete pouring process, this ensures that quality problems such as formwork bulging do not occur. The movable fixing frame 1 is fixed on the steel arc template 3. The movable fixing frame 1 includes a crossbeam angle steel 7 and a clamping angle steel 8. The crossbeam angle steel 7 is fixed at both ends of the steel arc template 3, and the clamping angle steel 8 is installed at the connection between the crossbeam angle steel 7 and the steel arc template 3. The crossbeam angle steel 7 plays a role in strengthening the overall structural stability of the template, making the template less prone to deformation during use. The clamping angle steel 8 is used to enhance the stability of the connection between the crossbeam angle steel 7 and the steel arc template 3, preventing the two from loosening during the stress process.

[0029] Preferably, the adjusting push-pull screw 2 includes a threaded screw 12, a first fixing component 11, and a second fixing component 13. One end of the threaded screw 12 extends through the bottom sealing steel mold 9 into the arc flashing construction space and is fixed to the gasket 10 by the second fixing component 13. The other end is exposed and fixed by the first fixing component 11. The threaded screw 12 serves as the main body for adjusting the distance. It moves by rotating, thereby changing the position of the gasket 10 within the arc flashing construction space, thus adjusting the distance between the bottom of the flashing and the wall base. The first fixing component 11 is a fastening nut and a flat washer, and the second fixing component 13 is a fastening nut. The gasket 10 can be a steel gasket; a hole is made on the side of the bottom sealing steel mold 9, and the threaded rod 12 passes through the hole and is fixed to the gasket 10 by a fastening nut and a flat washer. The fastening nut is fixed on the outside of the bottom sealing steel mold 9. Five adjusting push-pull screws 2 are evenly arranged along the two-meter-long bottom sealing steel mold 9. The extension and contraction size is controlled by adjusting the 150mm threaded rod 12, thereby driving the gasket 10 to move, thereby adjusting the distance between the bottom of the flashing and the wall base. The range of motion is 200-250mm.

[0030] Preferably, to ensure the integrity of the concrete flashing pouring, the hinged top cover plate 4 and the steel arc template 3 are connected by a hinge lock 14, which facilitates opening for pouring the bottom concrete. After the bottom concrete is poured, the hinged top cover plate 4 is flipped up, fixed with a bracket, and then the top 50mm of concrete is poured.

[0031] Preferably, the steel arc template 3 and the edge-sealing steel template 5 are grooved at the processing plant to enhance the strength and stability of the templates.

[0032] Preferably, the movable fixing frame 1 is equipped with a push-pull handle 6. Specifically, the push-pull handle 6 is located on the crossbeam angle steel 7, which facilitates the movement of the mold by construction personnel, improving the convenience of construction. The movable fixing frame has a quick-disassembly and quick-assembly structure, and can be disassembled by tightening bolts.

[0033] Preferably, the steel arc template 3 and the bottom sealing steel template 9 are fixed by a groove locking process to ensure the tightness and stability of the connection between the two and to prevent grout leakage during the concrete pouring process.

[0034] Preferably, the steel arc template 3 and the edge-sealing steel template 5 are fixed by spring buckles 15, which ensures a firm connection between the two while enabling quick and convenient disassembly, thereby improving the assembly and disassembly efficiency of the mold.

[0035] Preferably, the steel arc template 3, hinged top cover plate 4, edge-sealing steel template 5, and bottom-sealing steel template 9 are made of 3mm galvanized steel sheet rolled in a processing plant. Galvanized steel sheet has good corrosion resistance, which can extend the service life of the mold and ensure the stable performance of the mold during repeated use. At the same time, the rolling process can ensure the dimensional accuracy and shape consistency of the template, which is conducive to improving the construction quality of flashing.

[0036] Working principle and usage process of this utility model:

[0037] 1. Working principle: First, before pouring the flooded concrete, the mold is assembled. The mold mainly includes a movable fixed frame 1, an adjusting push-pull screw 2, a steel arc template 3, a hinged upper cover plate 4, an edge sealing steel template 5, and a bottom sealing steel mold 9.

[0038] Assemble the movable fixed support 1 using bolts. Secure the steel arc template 3 to the bottom sealing template 9 using the groove locking edge. Install the adjusting push-pull screw 2 assembly to the bottom sealing template 9. Secure the edge sealing steel template 5 using spring buckles 15. Adjust the mold size according to the dimensions of the flashing location on site. Fix the mold to the base of the vertical parapet wall and manually press the movable fixed support. When pouring concrete, pour the concrete into the mold along the reserved concrete pouring opening position on the hinged top cover plate 4. Compact the concrete with a hand vibrator. After the bottom concrete is poured, flip up the hinged top cover plate and fix it with the movable fixed support 1. Pour a portion of the reserved upper concrete along the concrete pouring opening on the hinged top cover plate 4. After the concrete has initially set, remove the mold and proceed with the next section of flashing pouring.

[0039] 2. Flowchart of R-angle flashing mold construction and usage

[0040] Determine elevation and mark lines → Install and fix molds → Feed concrete → Vibrate and level → Smooth → Leave joints and cure.

[0041] According to construction specifications, considering the placement of construction joints and expansion joints, the entire wall surface is poured in sections according to the mold dimensions. In actual construction, the impact of weather must be fully considered to avoid sudden cold or hot weather, which could damage the smoothness and flatness of the flashing.

[0042] 3. Requirements for concrete pouring

[0043] (1) Concrete requirements: C20 commercial fine aggregate concrete shall be used in the project. The slump during construction shall be controlled between 160mm and 180mm;

[0044] (2) One-time pouring: Concrete pouring is carried out in blocks and areas;

[0045] (3) Vibration and compaction: Manual vibration, compaction and compaction are adopted to make the concrete form in one step by utilizing the integrity and stability of the mold, avoiding the secondary leveling of the concrete surface by using a scraper. Joints and corners are also manually smoothed.

[0046] In summary, the roof R-corner flashing mold is made on-site by hand using various assembled components, making construction convenient and quick. The completed flashing has a smooth and flowing arc, with the correct drainage slope and unobstructed drainage.

[0047] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A mold for fabricating roof arc-shaped R-corner flashing, characterized in that, The system includes an adjusting push-pull screw (2), a sealing steel template (5), and a steel arc template (3). The steel arc template (3) is fixedly connected to the sealing steel template (5) on both sides. The bottom end of the steel arc template (3) is connected to a bottom sealing steel mold (9), and the top end of the steel arc template (3) is fixedly connected to a hinged top cover plate (4). The steel arc template (3), the hinged top cover plate (4), the sealing steel template (5), and the bottom sealing steel mold (9) form an arc flashing construction space. One end of the adjusting push-pull screw (2) passes through the bottom sealing steel mold (9) and extends to the arc flashing construction space and is fixedly connected to a gasket (10). The other end is exposed. A movable fixing frame (1) is fixed on the steel arc template (3). The movable fixing frame (1) includes a crossbeam angle steel (7) and a pressing angle steel (8). The crossbeam angle steel (7) is fixed at the upper and lower ends of the steel arc template (3), and the pressing angle steel (8) is set at the connection between the crossbeam angle steel (7) and the steel arc template (3).

2. The roof arc-shaped flashing mold according to claim 1, characterized in that, The adjusting push-pull screw (2) includes a through screw (12), a first fixing component (11), and a second fixing component (13); one end of the through screw (12) passes through the bottom sealing steel mold (9) and extends to the arc flashing construction space and is fixed by the second fixing component (13) to the gasket (10), while the other end is exposed and fixed by the first fixing component (11).

3. The roof arc-shaped flashing mold according to claim 1, characterized in that, The hinged top cover (4) is connected to the steel arc template (3) by a hinge lock (14).

4. The roof arc-shaped flashing mold according to claim 1, characterized in that, The steel arc template (3) and the edge-sealing steel template (5) are grooved by the processing plant.

5. A mold for making roof arc-shaped R-corner flashing according to claim 1, characterized in that, The steel arc template (3) and the edge-sealing steel template (5) are fixed by spring hooks (15).

6. The roof arc-shaped flashing mold according to claim 1, characterized in that, The movable fixed frame (1) is equipped with a push-pull handle (6).

7. A mold for making roof arc-shaped R-corner flashing according to claim 1, characterized in that, The steel arc template (3) and the bottom sealing steel template (9) are fixed by the groove locking process.

8. A mold for making roof arc-shaped R-corner flashing according to claim 1, characterized in that, The movable fixing frame (1) is a quick-release and quick-install structure, and can be disassembled by tightening bolts.

9. A mold for making roof arc-shaped R-corner flashing according to claim 1, characterized in that, The steel arc template (3), hinged top cover plate (4), edge sealing steel template (5) and bottom sealing steel mold (9) are made of 3mm galvanized steel sheet rolled in the processing plant.

10. A mold for making roof arc-shaped R-corner flashing according to claim 1, characterized in that, The hinged top cover (4) is provided with a concrete pouring port.