Sealing assembly and metal roof
By using a combination of base and edge trim to seal the metal roof, the problem of poor sealing caused by the penetration of the tie rod was solved, achieving effective sealing and stability of the metal roof and simplifying the construction process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DUOWEI UNION GRP
- Filing Date
- 2025-07-07
- Publication Date
- 2026-07-24
Smart Images

Figure CN224549516U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of metal building technology, and in particular to a tie rod sealing assembly and a metal roof. Background Technology
[0002] In steel structure buildings, tie rods are typically used as key load-bearing components. Together with purlins and steel beams, they form a stable triangular support structure, playing a crucial role in balancing loads and enhancing the overall structural integrity. In other words, tie rods can convert lateral forces or bending moments generated by wind and snow loads and the roof's self-weight into their own tensile force, which is then transferred to the supporting columns or steel frame. This effectively limits the lateral displacement and deformation of the roof structure, ensuring the stability and safety of the metal roof under complex conditions.
[0003] However, in practical engineering applications, to achieve a reliable connection between the tie rod and the corbel, the tie rod often needs to penetrate the metal roof surface. This penetrating connection method inevitably damages the integrity of the roof waterproofing layer, causing rainwater and moisture to easily seep into the room through the penetration point, resulting in poor roof sealing. Utility Model Content
[0004] In view of the above problems, this utility model embodiment is proposed. The purpose of this utility model embodiment is to provide a sealing component that can seal the clearance opening on a metal roof for the penetration of a tie rod.
[0005] To achieve this objective, the present invention adopts the following technical solution:
[0006] A sealing assembly, comprising:
[0007] A base, surrounding a through hole in the roof surface for the diagonal tie rod to pass through, the top surface of the base being parallel to the roof surface, and the top surface of the base having a clearance hole allowing the diagonal tie rod to pass through; and
[0008] The edge trim is arranged around the circumference of the diagonal tie rod and has a bottom surface and a connecting surface. The bottom surface is connected to the top surface of the base and surrounds the periphery of the clearance hole. The connecting surface is perpendicularly connected to the diagonal tie rod. The side surfaces between the bottom surface and the connecting surface are parallel to the diagonal tie rod.
[0009] Optionally, there are at least three sides between the connecting surface and the bottom surface.
[0010] Optionally, the base includes:
[0011] The frame includes two opposing, connected half-frames to enclose the circumference of the through hole; and
[0012] A cover plate is provided on the side of the frame facing away from the roof surface, and the clearance hole is located on the cover plate.
[0013] Optionally, the clearance hole is adjustable.
[0014] Optionally, the cover plate includes:
[0015] The plate and the connecting edges located around the periphery of the plate;
[0016] The clearance hole is located on the plate, and the connecting edge is located on the outer periphery of the frame and abuts against the frame.
[0017] Optionally, the half-frame includes:
[0018] A steel frame, comprising a base plate, side plates, and a top plate connected in sequence, wherein the base plate is connected to the roof surface;
[0019] Insulation component, disposed on the steel frame, abutting against the side plate; and
[0020] A pressure strip, at least one of the pressure strips is disposed on the steel frame and abuts against the side of the insulation component opposite to the steel frame.
[0021] Alternatively, multiple pressure strips are spaced apart, with the distance between two adjacent pressure strips being less than or equal to 600 mm.
[0022] Optionally, it also includes:
[0023] At least one reinforcing plate is connected to both the base and the roof surface.
[0024] Optionally, the base and the roof surface, as well as the edge trim and the base, are connected by a combination of screwing and bonding.
[0025] Another objective of this utility model embodiment is to provide a metal roof that can seal the clearance opening on the metal roof for the penetration of the tie rod, thereby ensuring the overall airtightness of the metal roof.
[0026] To achieve this objective, the present invention adopts the following technical solution:
[0027] A metal roof, comprising:
[0028] A roof surface, covering the steel structural frame of a metal building, with one end of a diagonal brace connected to the steel structural frame. The roof surface has through holes through which the other end of the diagonal brace passes; and
[0029] A sealing assembly is disposed around the through hole and the tie rod, and is connected to the roof surface and the tie rod respectively.
[0030] The technical solution provided by this utility model embodiment includes a base and an edge trimming piece. The base surrounds the through hole on the roof surface for the diagonal tie rod to pass through. The top surface of the base is parallel to the roof surface and has a clearance hole on the top surface to allow the diagonal tie rod to pass through. The base is adapted to the size of the through hole, which not only eliminates the influence of the undulating peaks and valleys of the roof surface but also allows for synchronous sliding deformation with the roof surface, eliminating the effects of thermal expansion and contraction. The edge trimming piece surrounds the circumference of the diagonal tie rod and has a bottom surface and a connecting surface. The bottom surface connects to the top surface of the base and surrounds the periphery of the clearance hole. This not only ensures good connection strength between the edge trimming piece and the base but also avoids the edge trimming piece being directly connected to the roof surface and affected by the peaks and valleys, thus ensuring good sealing performance of the sealing assembly. The connecting surface is perpendicularly connected to the diagonal tie rod. Compared to other angles between the connecting surface and the diagonal tie rod, the perpendicular connection not only ensures the stability of the connection but also ensures sealing performance. By setting the sides of the bottom surface and the connecting surface to be parallel to the tie rod, corresponding edge trims can be made according to different angles between the tie rod and the roof surface to meet the application of different tie rods. Attached Figure Description
[0031] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0032] Figure 1 This is a schematic diagram of the structure of a finishing piece provided in an embodiment of the present utility model;
[0033] Figures 2-4 A diagram illustrating the installation steps of a sealing assembly according to an embodiment of this utility model;
[0034] Figures 5-7 A diagram showing the installation steps of a sealing assembly provided in another embodiment of this utility model;
[0035] Figure 8 A schematic diagram of the frame structure and related cross-sectional views provided for an embodiment of this utility model.
[0036] In the diagram: 1. Sealing assembly; 2. Tie rod; 3. Roof surface;
[0037] 10. Base; 11. Frame; 111. Steel frame; 112. Insulation component; 113. Pressure strip; 12. Cover plate; 121. Panel; 122. Connecting edge; 123. Clearance hole; 13. Reinforcing plate; 14. Extension plate;
[0038] 20. Edge trim; 21. Bottom surface; 22. Connecting surface; 23. Side surface;
[0039] 31. Roof surface; 32. Wave crest. Detailed Implementation
[0040] Before implementing the embodiments of this application, the inventors of this application studied existing sealing structures for through holes in roof surfaces through which tie rods pass. They found that common sealing structures mostly rely on flexible materials, such as DDT cover sheets, waterproof coatings, and self-adhesive rolls. These flexible materials must be able to adapt to the undulations of the metal roof's corrugations and the complex cross-sectional shapes of the through holes caused by these corrugations. This requires workers to have a high degree of meticulousness and rich experience, making it difficult to standardize and popularize the technology.
[0041] Based on this, the inventors of this application attempted to divide the sealing structure into two parts. One part is covered around the through hole to eliminate the influence of the peaks and valleys of the roof surface. The other part is used to conform to the shape of the tie rod and to seal the tie rod to the base. Thus, the following embodiments were obtained.
[0042] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.
[0043] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" 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 or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0044] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0045] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.
[0046] Currently, metal structures are widely used in factory construction due to their advantages such as short construction time and low cost. To ensure the structural strength of metal structures, a steel frame is typically installed to support the entire structure. A metal roof is then constructed on top of the metal structure to protect the equipment inside from wind and rain, ensuring the safety of the equipment.
[0047] In order to make the metal roof stronger to withstand the lateral forces or bending moments generated by wind and snow loads and the roof's own weight, metal buildings are usually equipped with diagonal braces 2. One end of the diagonal brace 2 is set on the steel structure frame, and the other end passes through the metal roof to convert the load borne by the metal roof into its own tensile force and transfer it to the steel structure frame.
[0048] To ensure the rainproof and sealing performance of the metal roof, please refer to... Figure 4 and Figure 7 As shown in the illustration, this application provides a metal roof, which includes a roof surface 3 and a sealing component 1. The roof surface 3 covers a steel structural frame and has through holes. One end of the diagonal tie rod 2, facing away from the steel structural frame, passes through the through holes. Typically, the roof surface 3 has protruding peaks 32 or troughs for sufficient strength. The through holes pass through these peaks or troughs, resulting in a complex cross-sectional structure and allowing for synchronous sliding deformation with the roof surface, eliminating the effects of thermal expansion and contraction. The sealing component 1 of this application is unaffected by the protruding peaks 32 or troughs on the roof surface 3. It surrounds the through holes and the diagonal tie rod 2, connecting to both the roof surface 3 and the diagonal tie rod 2, ensuring good waterproof sealing of the metal roof surface 3.
[0049] Specifically, in some embodiments of this application, please refer to Figure 1 , Figure 4 and Figure 7As shown, the sealing assembly 1 includes a base 10 and a trim piece 20. The base 10 surrounds the through hole of the roof surface 3 for the diagonal tie rod 2 to pass through. The top surface of the base 10 is parallel to the roof surface 3, and the top surface of the base 10 has a clearance hole 123 that allows the diagonal tie rod 2 to pass through. The trim piece 20 surrounds the diagonal tie rod 2 circumferentially and has a bottom surface 21 and a connecting surface 22. The bottom surface 21 is connected to the top surface of the base 10 and surrounds the periphery of the clearance hole 123. The connecting surface 22 is perpendicularly connected to the diagonal tie rod 2. The base 10 can eliminate the influence of the uneven peaks 32 or troughs on the roof surface 3, so that the trim piece 20 only needs to consider the connection and sealing with the diagonal tie rod 2 and will not be affected by the roof surface 3, thereby ensuring good sealing performance and connection strength. The side surfaces 23 between the bottom surface 21 and the connecting surface 22 are parallel to the tie rod 2, so that the edge trim 20 can be made according to different angles between the tie rod 2 and the roof surface 3 to meet the different applications of the tie rod 2, thereby making the application of the sealing component 1 of this application more extensive.
[0050] In other words, in the embodiments of this application, the base 10 can standardize the through holes with different rules, while the edge trim 20 does not need to consider the shape of the roof surface 3, but only how to adapt and seal it with the tie rod 2. This simplifies complex matters, makes the design and construction methods more standardized, solves industry problems, and promotes the stable development of the industry.
[0051] It is understandable that the angle of the tie rod 2 is different for different steel structure buildings. Therefore, corresponding to different angles of the tie rod 2, there are at least three side surfaces 23 between the connecting surface 22 and the base 10. In some embodiments of this application, when the angle between the tie rod 2 and the roof surface 3 is greater than 0° and less than or equal to 60°, the number of side surfaces 23 between the connecting surface 22 and the ground is 3. Please refer to [reference needed]. Figure 1 As shown, the longitudinal section of the edge trim 20 is triangular, and the angle between the top surface of the edge trim 20 and the roof surface 3 is equal to the angle between the tie rod 2 and the roof surface 3. The two side surfaces 23 on both sides of the top surface are right triangles, thus ensuring that the connecting surface 22 is perpendicular to the tie rod 2. The connecting surface 22 and the tie rod 2 can be connected by welding and gluing, or by screwing or riveting and gluing, as long as the connection strength and sealing are ensured. This application does not impose specific limitations. Please refer to... Figures 8-7 As shown, when the angle between the tie rod 2 and the roof surface 3 is greater than or equal to 85° and less than or equal to 90°, the tie rod 2 and the roof surface 3 are approximately perpendicular. Therefore, the number of side surfaces 23 between the connecting surface 22 and the bottom surface 21 is greater than or equal to 4. At this time, the cross-section of the edge trim 20 is rectangular or polygonal, and the top surface of the edge trim 20 is the connecting surface 22.
[0052] It should be noted that the different numbers of side surfaces 23 corresponding to different angles are merely illustrative examples for the embodiments of this application. In actual engineering, the number of side surfaces 23 can be selected according to the actual situation, which does not constitute a limitation on the actual number of side surfaces 23.
[0053] In some embodiments of this application, one possible method for installing the base 10 on the roof surface 3 is to first cut off the corresponding corrugation 32 on the roof surface 3 according to the size of the base 10, so that the edge of the base 10 abuts against the longitudinal section of the cut corrugation 32, and the base 10 as a whole abuts against the flat surface 31 of the roof surface 3, thereby ensuring a good fit. The cross section of the cut corrugation 32 can be sealed with sealant, sealing strip, or other sealing components. The base 10 and the large surface 31 of the roof surface 31 are fixedly connected by screws or rivets to ensure connection strength, and then sealant is applied around the perimeter to further strengthen the connection strength and ensure sealing.
[0054] Understandably, please refer to Figures 8-4 As shown, the base 10 of this application is rectangular, with its short side located between two adjacent corrugations 32, thus eliminating the longitudinal surface of the corrugations 32 at the short side and enabling better sealing. The long side traverses multiple corrugations 32. To ensure even better sealing, in some embodiments of this application, the base 10 also includes an extension plate 14 at its long side. One side of the extension plate 14 is connected to the base 10, and the other end abuts against the cross-section of the multiple corrugations 32. Compared to the base 10 directly covering the flat surface 31 of the roof surface 3, the extension plate 14, being a flat plate, can better cover and conform to the large surface 31 of the roof surface 3, effectively sealing any holes left by the corrugations 32 cut into the large surface 31 of the roof surface 3. Furthermore, the presence of the extension plate 14 increases the distance between the long side of the base 10 and the cross-section of the corrugations 32. Therefore, in some embodiments of this application, the sealing assembly 1 also includes a reinforcing plate 13. One side of the reinforcing plate 13 is connected to the long side of the base 10, and the other side is connected to the roof surface 3 via the extension plate 14. This increases the support of the base 10.
[0055] Please refer to some embodiments of this application. Figures 8-4As shown, there is at least one reinforcing plate 13, and multiple reinforcing plates 13 are spaced apart between the base plate and the extension plate 14. The reinforcing plate 13 can be triangular, with one of its two right-angled sides connected to the long side 23 of the base 10 and the other connected to the extension plate 14. In other embodiments of this application, the reinforcing plate 13 can also be a single piece, similar to a rhombus. The two longer opposite angles of the rhombus are located at the two ends of the boundary line connecting the long side 23 and the extension plate 14, while the two shorter opposite angles are connected to the center of the upper side of the long side 23 and the center of the side of the extension plate 14 facing away from the base 10. That is, two sides of the rhombus are connected to the long side 23 of the base 10, and the other two sides are connected to the extension plate 14. In this case, the line connecting the two shorter opposite angles in the center of the rhombus protrudes outwards, while both sides are inclined towards the base 10. This design not only makes the shape more aesthetically pleasing but also easier to manufacture. The reinforcing plate 13 is connected to the base plate and the extension plate 14 by riveting or screwing, and the connection is sealed again with sealant, so as to ensure both connection strength and sealing performance.
[0056] Please refer to some embodiments of this application. Figure 8 As shown, the base 10 includes a frame 11 and a cover plate 12. The frame 11 includes two opposing and connected half-frames. During installation, one half-frame is located on one side of the through hole, and the other half-frame is located on the other side. The two half-frames are joined together to enclose the circumference of the through hole, thus facilitating the connection of the frame 11. Similarly, the two half-frames are first screwed or hinged, and then sealed with sealant or other sealing materials. Alternatively, a connection structure can be used where welding is performed first, followed by adhesive sealing. The cover plate 12 covers the side of the frame 11 facing away from the roof surface 3.
[0057] Since the dimensions and inclination of different tie rods 2 are different, the positions of the clearance holes 123 are also different. Therefore, the position of the clearance holes 123 in this application is adjustable to meet the needs of different tie rods 2. For details, please refer to... Figure 8 As shown in the embodiments of this application, the cover plate 12 includes multiple sub-plates, which can be spliced together according to the positions of the diagonal tie rods 2, with clearance holes 123 at the splicing points. Alternatively, clearance holes 123 can be made on the sub-plates according to the positions of the different diagonal tie rods 2 during the installation of the base 10. Adjacent sub-plates can be mechanically connected by screws or riveting and then sealed by adhesive bonding, or adjacent sub-plates can be welded together and then sealed with sealant. As long as good connectivity and sealing can be ensured, this application does not impose specific limitations.
[0058] Please refer to some embodiments of this application. Figure 8As shown, the cover plate 12 includes a plate body 121 and a connecting edge 122 located around the plate body 121. The connecting edge 122 is located outside the frame 11 and abuts against the frame 11. That is to say, the cover plate 12 is fastened to the frame 11. Liquids, due to gravity, usually flow downwards. When the liquid flows to the connecting edge 122, it will drip off under the influence of gravity and will not enter between the cover plate 12 and the frame 11. Therefore, a strict seal is not required between the cover plate 12 and the frame 11. The connecting edge 122 and the frame 11 can be connected by riveting or screwing. Of course, to ensure a seal, sealant can be applied after the cover plate 12 and the frame 11 are mechanically connected. This application does not make specific limitations on this.
[0059] In addition to being waterproof, metal roofs must also have thermal insulation properties to ensure that the temperature exchange between the metal building and the outside environment is not too rapid, thus ensuring a comfortable temperature in winter and cool in summer. Since the sealing component 1 has a relatively large area, please refer to some embodiments of this application. Figure 8 As shown, the semi-frame includes a steel frame 111, an insulation component 112, and a pressure strip 113. The steel frame 111 includes a bottom plate, side plates, and a top plate connected in sequence. The bottom plate is connected to the roof surface 3. The insulation component 112 is disposed on the steel frame 111 and abuts against the side plates. At least one pressure strip 113 is disposed on the steel frame 111 and abuts against the side of the insulation component 112 opposite to the steel frame 111. The pressure strip 113 prevents the insulation component 112 from detaching from the steel frame 111, while the steel frame 111 ensures the strength of the base 10.
[0060] Please refer to some embodiments of this application. Figure 8 As shown, the half-frame includes multiple pressure strips 113, and the distance between two adjacent pressure strips 113 is less than or equal to 60mm to ensure sufficient strength to prevent the insulation component 112 from detaching from the steel frame 111.
[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A sealing assembly, characterized in that, include: A base is mounted on the roof surface around a through hole for the diagonal tie rod to pass through. The top surface of the base is parallel to the roof surface, and the top surface of the base has a clearance hole that allows the diagonal tie rod to pass through. as well as The edge trim is arranged around the circumference of the diagonal tie rod and has a bottom surface and a connecting surface. The bottom surface is connected to the top surface of the base and surrounds the periphery of the clearance hole. The connecting surface is perpendicularly connected to the diagonal tie rod. The side surfaces between the bottom surface and the connecting surface are parallel to the diagonal tie rod.
2. The sealing assembly according to claim 1, characterized in that, There are at least three side surfaces between the connecting surface and the bottom surface.
3. The sealing assembly according to claim 1, characterized in that, The base includes: The frame includes two opposing, connected half-frames to enclose the circumference of the through hole; and A cover plate is provided on the side of the frame facing away from the roof surface, and the clearance hole is located on the cover plate.
4. The sealing assembly according to claim 3, characterized in that, The clearance hole is adjustable.
5. The sealing assembly according to claim 4, characterized in that, The cover plate includes: The plate and the connecting edges located around the perimeter of the plate; The clearance hole is located on the plate, and the connecting edge is located on the outer periphery of the frame and abuts against the frame.
6. The sealing assembly according to claim 4, characterized in that, The half-frame includes: A steel frame, comprising a base plate, side plates, and a top plate connected in sequence, wherein the base plate is connected to the roof surface; Insulation component, disposed on the steel frame, abutting against the side plate; and A pressure strip, at least one of the pressure strips is disposed on the steel frame and abuts against the side of the insulation component opposite to the steel frame.
7. The sealing assembly according to claim 6, characterized in that, Multiple pressure strips are spaced apart, and the distance between two adjacent pressure strips is less than or equal to 600mm.
8. The sealing assembly according to claim 1, characterized in that, Also includes: At least one reinforcing plate is connected to both the base and the roof surface.
9. The sealing assembly according to claim 1, characterized in that, The base and the roof surface, as well as the edge trim and the base, are connected by a combination of screwing and bonding.
10. A metal roof, characterized in that, include: The roof surface is covered on the steel structure frame of the metal building. One end of the diagonal tie rod is connected to the steel structure frame. The roof surface is provided with through holes, and the other end of the diagonal tie rod passes through the through holes. as well as The sealing assembly as described in any one of claims 1 to 9 is disposed around the through hole and the periphery of the tie rod, and is connected to the roof surface and the tie rod respectively.