Profiled steel sheet roof waterproof connecting device

By designing a V-shaped structure for the top and bottom plates of the profiled steel sheet roof, combined with waterproof membrane and toothed interlocking, and using support risers and nut assemblies to fix the profiled steel sheet, the problem of water seepage in profiled steel sheet roofs is solved, the waterproofing effect is improved, and the maintenance difficulty and cost are reduced.

CN224149022UActive Publication Date: 2026-04-21CHINA MCC17 GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA MCC17 GRP CO LTD
Filing Date
2025-05-20
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Corrugated steel sheet roofs have water seepage problems at the joints, and the waterproof membrane's waterproofing effect is reduced due to thermal expansion and contraction, making it difficult to guarantee the overall waterproofing quality of the building, and resulting in high difficulty and cost of later maintenance.

Method used

Design a waterproof connection device for profiled steel sheet roofing, including a top plate and a bottom plate, both of which are V-shaped and covered with waterproof membrane. They are bonded by toothed interlocking and waterproof coating, combined with supporting risers and bottom support components to achieve effective waterproofing, and the profiled steel sheet is fixed by a nut assembly.

Benefits of technology

It effectively solved the problem of water seepage at the joints of profiled steel sheets, improved the overall waterproofing quality of buildings, and reduced maintenance difficulty and cost.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a profiled steel sheet roof waterproof connecting device, and relates to the technical field of roof waterproof treatment, the profiled steel sheet roof waterproof connecting device comprises a top plate and a bottom plate, the top plate and the bottom plate are in a downward V shape and are parallel to each other, and waterproof coiled materials are laid on the top plate; profiled steel sheets are mounted on two opposite sides of the top plate and the bottom plate; the two groups of profiled steel sheets are bent, each profiled steel sheet comprises a horizontal part and an inclined part, the horizontal parts are parallel to the mounting roof, and the inclined parts are located between the top plate and the bottom plate; waterproof paint is coated on the upper side and the lower side of the inclined part; a first tooth profile is arranged on the side, opposite to the bottom plate, of the top plate, and a second tooth profile is arranged on the side, opposite to the top plate, of the bottom plate. A bottom supporting piece is arranged in the middle of the bottom plate, a supporting vertical pipe is arranged in the middle of the top plate, and the supporting vertical pipe is suitable for being inserted into the bottom supporting piece and fixed, so that the problem of water leakage during splicing of the profiled steel sheets is solved.
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Description

Technical Field

[0001] This utility model relates to the field of roof waterproofing technology, specifically a waterproofing connection device for profiled steel sheet roofs. Background Technology

[0002] Corrugated steel sheets have good integrity and structural strength, and are often used in building roof structures. However, water seepage problems exist at the joints of corrugated steel sheet roofs, and the steel material is subject to thermal expansion and contraction. Over time, this can lead to the expansion of seepage points, and the waterproof membrane's effectiveness can decrease due to wind and sun exposure, making it easy for leaks to occur. This makes it difficult to guarantee the overall waterproof quality of the building, and the subsequent maintenance is difficult and costly.

[0003] To address the aforementioned issues, this patent designs a waterproof connection device for profiled steel sheet roofs, solving the problem of water leakage at the splicing of profiled steel sheets and improving the overall waterproofing quality of the building. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a waterproof connection device for profiled steel sheet roofs to solve the problem of water leakage at the splicing of profiled steel sheets.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a profiled steel sheet roof waterproof connection device, including a top plate and a bottom plate, both of which are downward V-shaped and parallel to each other, and a waterproof membrane is laid on the top plate; profiled steel sheets are installed on the opposite sides of the top plate and the bottom plate.

[0006] The profiled steel sheet is provided in two sets and is bent. The profiled steel sheet includes a horizontal part and an inclined part. The horizontal part is parallel to the roof surface to which it is installed, and the inclined part is located between the top plate and the bottom plate.

[0007] Waterproof coating is applied to the upper and lower sides of the inclined section; a tooth shape one is provided on the side of the top plate opposite the bottom plate, and a tooth shape two is provided on the side of the bottom plate opposite the top plate; a bottom support is provided in the middle of the bottom plate, and a support riser is provided in the middle of the top plate, the support riser being suitable for insertion into the bottom support and fixed.

[0008] In a further technical solution, both ends of the waterproof membrane extend to the horizontal portion;

[0009] The bottom of the top plate is provided with a notch, and the bottom plate is provided with a steel plate fixing nail hole; the steel plate fixing nail hole is adapted to the notch.

[0010] In a further technical solution, the first tooth shape includes a top plate water-stop tooth buckle, with the top plate water-stop tooth buckle arranged longitudinally on the inner side of the top plate, and the cross-section is a continuous semi-circular tooth shape; the second tooth shape includes a bottom plate water-stop tooth buckle, with the bottom plate water-stop tooth buckle including intermittent arc-shaped teeth, and the position corresponding to the adjacent semi-circular teeth.

[0011] In a further technical solution, the supporting riser is provided in multiple sets and located on the bottom side of the middle of the top plate, and the bottom of the supporting riser is provided with external threads.

[0012] The bottom support includes a riser pipe, with diagonal braces on both sides of the riser pipe. One end of the diagonal brace is fixedly connected to the riser pipe, and the other end is fixedly connected to the base plate. Each set of risers is provided with diagonal braces on both sides.

[0013] The length of the supporting riser is greater than the length of the riser pipe;

[0014] The support riser is adapted to pass through the riser pipe and is fixed at the bottom with a nut assembly.

[0015] In a further technical solution, the nut assembly includes an upper fixing nut and a lower fixing nut, the upper fixing nut being located above the lower fixing nut and both being located on the external thread of the supporting riser;

[0016] A bottom limiting plate is welded to the bottom of the supporting riser.

[0017] In a further technical solution, the height of the top end of the inclined portion of the profiled steel sheet is higher than the height of the fixing nail opening of the steel sheet.

[0018] During use, apply waterproof coating to the outer side of the base plate and the inner side of the top plate. Place the roof ends of the profiled steel sheets to be connected on both sides of the base plate, with the edges of the roof ends slightly higher than the fixing nail holes of the steel sheets. Assemble the top and bottom plates, and insert the supporting risers of the top plate (without upper fixing nuts, lower fixing nuts, and bottom limiters) into the corresponding riser pipes. Install the upper fixing nuts at the bottom fixing threads of the supporting risers until they are tightened. Due to the pressure from the fixing nail holes, the ends of the profiled steel sheets will be drilled and deformed, connecting with the device as a whole. The connection parts of the profiled steel sheets are also compacted by the water-stop teeth of the top and bottom plates, and small gaps are filled with waterproof coating. When there are multiple supporting risers, for roofs with slopes, start from the side with higher roof height and gradually tighten the upper bolts towards the side with lower roof height; for roofs without slopes, start by tightening the two ends and gradually tighten towards the middle. After all parts are compacted, insert the lower fixing nuts and tighten them tightly against the upper fixing nuts. A bottom stop is installed at the bottom to prevent the nut from loosening and falling off. When there is a building beam structure below the device, the bottom stop can also serve as a support for the device on the beam. After the device is installed, a waterproof membrane layer is laid on top of the device.

[0019] Compared with existing technologies, it has the following advantages:

[0020] This invention achieves basic waterproofing by installing a top plate and a bottom plate at the joint of the profiled steel sheets, with a waterproof membrane laid on top of the top plate. Toothed sections one and two are provided between the top plate and the bottom plate to engage with the profiled steel sheets, and a waterproof coating is used for bonding and effective waterproofing, thus solving the problem of water seepage at the joints of the profiled steel sheets. The effective connection between the bottom support and the support riser allows for adjustment of the bottom plate on the support riser, thereby adjusting the distance between the top and bottom plates. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the installation structure of the profiled steel sheet roof waterproofing connection device of this utility model;

[0022] Figure 2 This is a schematic diagram showing the connection of multiple sets of top plates according to this utility model;

[0023] Figure 3 This is a schematic diagram showing the connection of multiple base plates according to this utility model;

[0024] In the picture:

[0025] 1. Waterproof membrane; 2. Top plate; 3. Waterproof coating; 4. Corrugated steel sheet; 5. Supporting riser; 6. Riser pipe; 7. Notch; 8. Lower fixing nut; 9. Diagonal brace; 10. Upper fixing nut; 11. Bottom limiting plate; 12. Steel plate fixing nail hole; 13. Top plate water-stop toothed buckle; 14. Bottom plate water-stop toothed buckle; 15. Bottom plate; 41. Horizontal part; 42. Diagonal part. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0027] Example 1

[0028] Please see Figure 1-3 This utility model provides a technical solution: a profiled steel sheet roof waterproof connection device, including a top plate 2 and a bottom plate 15. The top plate 2 and the bottom plate 15 are both downward V-shaped and parallel to each other. A waterproof membrane 1 is laid on the top plate 2. Profiled steel sheets 4 are installed on the opposite sides of the top plate 2 and the bottom plate 15.

[0029] The profiled steel sheet 4 is provided in two sets and is bent. The profiled steel sheet 4 includes a horizontal part 41 and an inclined part 42. The horizontal part 41 is parallel to the roof surface to which it is installed, and the inclined part 42 is located between the top plate 2 and the bottom plate 15.

[0030] Waterproof coating 3 is applied to the upper and lower sides of the inclined section 42; a tooth shape 1 is provided on the side of the top plate 2 opposite to the bottom plate 15, and a tooth shape 2 is provided on the side of the bottom plate 15 opposite to the top plate 2; a bottom support member is provided in the middle of the bottom plate 15, and a support riser 5 is provided in the middle of the top plate 2, and the support riser 5 is suitable for being inserted into the bottom support member and fixed.

[0031] In a further technical solution, both ends of the waterproof membrane 1 extend to the horizontal portion 41;

[0032] The bottom of the top plate 2 is provided with a notch 7, and the bottom plate 15 is provided with a steel plate fixing nail hole 12; the steel plate fixing nail hole 12 is adapted to the notch 7.

[0033] like Figure 2 and 3 As shown, the first tooth shape includes a top plate water-stop tooth buckle 13, which is arranged longitudinally on the inner side of the top plate 2, and the cross-section is a continuous semi-circular tooth shape; the second tooth shape includes a bottom plate water-stop tooth buckle 14, which includes intermittent arc-shaped teeth, and the positions correspond to adjacent semi-circular teeth.

[0034] The supporting riser 5 is provided in multiple sets and is located on the bottom side of the middle part of the top plate 2, and the bottom of the supporting riser 5 is provided with external threads.

[0035] like Figure 3 As shown, the bottom support includes a riser pipe 6, with diagonal braces 9 on both sides of the riser pipe 6. One end of the diagonal brace 9 is fixedly connected to the riser pipe 6, and the other end is fixedly connected to the base plate 15. Each set of riser pipes 6 has diagonal braces 9 on both sides. The length of the supporting riser 5 is greater than the length of the riser pipe 6.

[0036] The supporting riser 5 is adapted to pass through the riser pipe 6 and be fixed at the bottom by a nut assembly.

[0037] In a further technical solution, the nut assembly includes an upper fixing nut 10 and a lower fixing nut 8, the upper fixing nut 10 being located above the lower fixing nut 8 and both being located on the external thread of the supporting riser 5; a bottom limiting plate 11 is welded to the bottom of the supporting riser 5.

[0038] The height of the top end of the inclined portion 42 of the profiled steel sheet 4 is higher than the height of the fixing nail hole 12 of the steel sheet.

[0039] This invention achieves basic waterproofing by installing a top plate and a bottom plate at the joint of the profiled steel sheets, with a waterproof membrane laid on top of the top plate. Toothed sections one and two are provided between the top plate and the bottom plate to engage with the profiled steel sheets, and a waterproof coating is used for bonding and effective waterproofing, thus solving the problem of water seepage at the joints of the profiled steel sheets. The effective connection between the bottom support and the support riser allows for adjustment of the bottom plate on the support riser, thereby adjusting the distance between the top and bottom plates.

[0040] When the top plate and bottom plate are engaged, the gap between the top plate water-stop teeth of the top plate is filled by the bottom plate water-stop teeth of the bottom plate. The top and bottom plate water-stop teeth are arranged horizontally in the longitudinal direction, and the raised structures are all circular hemispherical. The radius of the raised structure of the top plate water-stop teeth is slightly larger than that of the bottom plate water-stop teeth. The installation range of the top and bottom plate water-stop teeth starts from the bottom of the top or bottom plate and stops 5cm from the top. Steel plate fixing nail holes are installed within 5cm of the top of the bottom plate, and a notch 7 is left at the corresponding position of the steel plate fixing nail holes on the top plate. A riser pipe is installed at the center of the bottom plate at the corresponding position of the top plate support riser. Two diagonal braces are installed at the bottom of the riser pipe, and the other end of the diagonal braces is fixed to the bottom of the bottom plate. The support riser pipe can pass through the riser pipe, and the ends are fixed to the upper and lower structures by upper and lower fixing nuts. The following should be noted:

[0041] 1. Apply waterproof coating to the outer side of the base plate and the inner side of the top plate before use;

[0042] 2. Place the ends of the profiled steel sheet roof that need to be connected on both sides of the base plate. The edge of the profiled steel sheet roof end is slightly higher than the position of the fixing nail hole of the steel sheet. Assemble the top plate and the base plate. Insert the supporting riser of the top plate (without upper fixing nut, lower fixing nut and bottom limit) into the corresponding riser pipe.

[0043] 3. Install the upper fixing nut at the bottom threaded location of the supporting riser until it is tightened. The end of the profiled steel sheet will be drilled and deformed due to the pressure of the fixing nails, connecting it to the device as a whole. The connection area of ​​the profiled steel sheet is also compacted by the top and bottom water-stop fasteners, and small gaps are filled with waterproof coating. When there are multiple supporting risers, for roofs with a slope, the upper bolts should be tightened gradually from the higher side to the lower side; for roofs without a slope, the two ends should be tightened first, and then gradually tightened towards the middle.

[0044] 4. After all parts have been compressed and compacted, install the lower fixing nut and tighten it against the upper fixing nut. Install a bottom limiter at the bottom to prevent the nut from loosening and falling off. When there is a building beam structure below the device, the bottom limiter can also serve as a support for the device on the beam.

[0045] 5. After the device is installed, lay a waterproof membrane layer on top of the device.

[0046] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A profiled steel sheet roof waterproofing connecting device, characterized in that, It includes a top plate (2) and a bottom plate (15). Both the top plate (2) and the bottom plate (15) are downward V-shaped and parallel to each other. A waterproof membrane (1) is laid on the top plate (2). A profiled steel plate (4) is installed on the opposite sides of the top plate (2) and the bottom plate (15). The profiled steel sheet (4) is provided in two sets and is bent. The profiled steel sheet (4) includes a horizontal part (41) and an inclined part (42). The horizontal part (41) is parallel to the roof surface to which it is installed, and the inclined part (42) is located between the top plate (2) and the bottom plate (15). Waterproof coating (3) is applied to the upper and lower sides of the inclined part (42); a tooth shape one is provided on the side of the top plate (2) opposite to the bottom plate (15), and a tooth shape two is provided on the side of the bottom plate (15) opposite to the top plate (2); a bottom support is provided in the middle of the bottom plate (15), and a support riser (5) is provided in the middle of the top plate (2), and the support riser (5) is suitable for being inserted into the bottom support and fixed.

2. The corrugated steel sheet roofing waterproof connecting device according to claim 1, characterized in that, The waterproof membrane (1) extends to the horizontal portion (41) at both ends; The top plate (2) has a notch (7) at its bottom and a steel plate fixing nail hole (12) on the bottom plate (15); the steel plate fixing nail hole (12) is adapted to the notch (7).

3. The corrugated steel sheet roofing waterproof connecting device according to claim 2, characterized in that, The first tooth shape includes a top plate water-stop tooth buckle (13), which is set longitudinally on the inner side of the top plate (2) and has a continuous semi-circular tooth shape in cross section; the second tooth shape includes a bottom plate water-stop tooth buckle (14), which includes intermittent arc-shaped teeth and is positioned corresponding to adjacent semi-circular teeth.

4. The corrugated steel sheet roofing waterproof connecting device according to claim 2, characterized in that, The support riser (5) is provided in multiple sets and is located on the bottom side of the middle part of the top plate (2), and the bottom of the support riser (5) is provided with external threads; The bottom support includes a riser pipe (6), and diagonal braces (9) are provided on both sides of the riser pipe (6). One end of the diagonal brace (9) is fixedly connected to the riser pipe (6), and the other end is fixedly connected to the base plate (15); and diagonal braces (9) are provided on both sides of each set of riser pipes (6). The length of the supporting riser (5) is greater than the length of the riser pipe (6); The support riser (5) is adapted to pass through the riser pipe (6) and is fixed at the bottom by a nut assembly.

5. The corrugated steel sheet roofing waterproof connecting device according to claim 4, characterized in that, The nut assembly includes an upper fixing nut (10) and a lower fixing nut (8). The upper fixing nut (10) is located above the lower fixing nut (8) and both are located on the external thread of the supporting riser (5). A bottom limiting plate (11) is welded to the bottom of the supporting riser (5).

6. The corrugated steel sheet roofing waterproof connecting device according to claim 4, characterized in that, The height of the top end of the inclined portion (42) of the profiled steel sheet (4) is higher than the height of the fixing nail hole (12) of the steel sheet.