Deformation joint waterproof structure
By designing a waterproof structure at the expansion joint of the metal roof of a large public building, where the cover overlaps with the water-guiding sidewall, and combining it with expansion belts and waterproof membrane, the problem of water accumulation and leakage at the expansion joint is solved, achieving effective waterproofing and drainage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA IPPR INT ENG CO LTD
- Filing Date
- 2025-05-28
- Publication Date
- 2026-05-26
AI Technical Summary
Expansion joints in the metal roofs of large public buildings are prone to water accumulation and leakage, especially under external forces such as temperature changes, wind loads, and snow loads, which can easily cause displacement of the steel structure.
The waterproof structure design includes a first roof panel and a second roof panel. The overlapping part of the first roof panel and the first water-guiding sidewall form an expansion joint. Combined with expansion belts, expansion buckles and waterproof membrane, it forms a three-layer waterproof protection. The water-guiding channel is designed to collect and drain accumulated water.
The vertical height of the expansion joint was increased, which reduced the risk of water seepage and significantly lowered the risk of leakage. It also enabled timely drainage of accumulated water and enhanced the waterproofing effect.
Smart Images
Figure CN224281775U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of roof construction technology, and in particular to a waterproof structure for expansion joints. Background Technology
[0002] Metal roofs of large public buildings often have numerous joints due to structural requirements. Furthermore, the roofs of these buildings are frequently curved or irregularly shaped, and the joints are often located in low-lying areas of these curved surfaces, making them more prone to water accumulation. In addition, large public buildings typically employ steel structures, which are susceptible to elastic deformation under the influence of temperature changes, wind loads, and snow loads. This makes them more prone to displacement and leaks at connection points, such as expansion joints. Utility Model Content
[0003] This utility model provides a waterproof structure for expansion joints, aiming to solve the problem of easy water leakage in roof expansion joints in traditional technology.
[0004] To address the problems existing in the prior art, this utility model provides a waterproof structure for expansion joints, characterized by comprising:
[0005] A first roof panel includes a first panel body and a cover portion disposed at the end of the first panel body; and a second roof panel is disposed opposite to the first roof panel, including a second panel body and a first water guide channel disposed at the end of the second panel body, the first water guide channel having a first water guide sidewall, the cover portion forming a deformation joint on the side facing the first water guide sidewall, the first water guide sidewall being fastened to the cover portion and located within the deformation joint.
[0006] According to the present invention, a waterproof structure for expansion joints is provided, wherein the cover part includes a first cover sidewall, a second cover sidewall and a third cover sidewall that are bent and connected in sequence, and the first water-guiding sidewall is inserted between the first cover sidewall and the third cover sidewall.
[0007] According to the waterproof structure of the expansion joint provided by this utility model, at least one expansion band is connected between the first water-guiding sidewall and the third buckle sidewall.
[0008] According to the waterproof structure of the expansion joint provided by this utility model, one end of the expansion band is provided at the end of the first water-guiding sidewall, and the other end of the expansion band is provided at the end of the third cover sidewall near the first water-guiding sidewall.
[0009] According to the waterproof structure for expansion joints provided by this utility model, the first roof panel further includes a telescopic buckle plate, the telescopic buckle plate includes a first buckle plate and a second buckle plate, the first buckle plate is disposed against the inner side of the buckle cover, one end of the second buckle plate is connected to the first buckle plate at the side wall of the first buckle cover, and the other end is connected to the end of the first water-guiding side wall.
[0010] According to the waterproof structure for expansion joints provided by this utility model, a water guiding groove is provided on the second buckle plate.
[0011] According to the waterproof structure of the expansion joint provided by this utility model, a second water guide groove is provided at one end of the first panel body near the buckle part, the second water guide groove includes a second water guide sidewall, and the second water guide sidewall is connected to the first buckle sidewall.
[0012] According to the waterproof structure for expansion joints provided by this utility model, the distance between the inner side of the second cover sidewall and the upper end face of the first water-guiding sidewall is 150-250mm.
[0013] According to the waterproof structure for expansion joints provided by this utility model, a continuous waterproof membrane is laid on the outer side of the first roof panel and the second roof panel.
[0014] According to the waterproof structure for expansion joints provided by this utility model, steel square tubes are provided at the ends and middle of the first roof panel and the second roof panel, and each of the steel square tubes is used for supporting the installation of the cover and the telescopic buckle plate.
[0015] The waterproof structure for expansion joints provided by this utility model increases the vertical height of the expansion joint by setting a snap-on cover that overlaps with the first water-guiding sidewall, thereby reducing the risk of water seepage. In addition, water accumulated on the first and second roof panels will collect in the first water-guiding channel and be discharged, which can also promptly drain water from the roof and reduce the risk of water seepage. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in 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 from these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the first embodiment of the waterproof structure for expansion joints provided by this utility model;
[0018] Figure 2 This is a schematic diagram of the second embodiment of the waterproof structure for expansion joints provided by this utility model;
[0019] Reference numerals in the attached drawings: 1. First roof panel; 11. Main body of the first panel; 12. Cover part; 121. Side wall of the first cover; 122. Side wall of the second cover; 123. Side wall of the third cover; 13. Expansion strip; 14. Expansion buckle plate; 141. First buckle plate; 142. Second buckle plate; 143. Drainage channel; 15. Second drainage groove; 151. Second drainage side wall; 2. Second roof panel; 21. Main body of the second panel; 22. First drainage groove; 221. First drainage side wall; 3. Expansion joint; 4. Waterproof membrane; 5. Steel square tube. Detailed Implementation
[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0021] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.
[0022] In the description of the embodiments of this utility model, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" 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 the embodiments of this utility model and simplifying the description, 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 the embodiments of this utility model.
[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.
[0025] The following disclosure provides numerous different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention; however, those skilled in the art will recognize the applicability of other processes and / or the use of other materials.
[0026] The following is combined with Figures 1-2 This invention describes the waterproof structure for expansion joints provided by this utility model.
[0027] In view of the problem that roof expansion joints are prone to leakage in traditional technology, this utility model provides a waterproof structure for expansion joints, which includes a first roof panel 1 and a second roof panel 2. The first roof panel 1 and the second roof panel 2 are the roof structure of the building, which are arranged opposite to each other and form an expansion joint 3 in the middle.
[0028] Specifically, the first roof panel 1 includes a first panel body 11 and a cover portion 12 located at the end of the first panel body 11; the second roof panel 2 includes a second panel body 21 and a first water guide channel 22 located at the end of the second panel body 21. The first water guide channel 22 has a first water guide sidewall 221. The cover portion 12 forms an expansion joint 3 on the side facing the first water guide sidewall 221. The first water guide sidewall 221 is fastened to the cover portion 12 and located within the expansion joint 3. It should be noted that the cover portion 12 and the first panel body 11 can be integrally formed or separately formed. When integrally formed, the end of the first panel body 11 can be bent to form the cover portion 12. The first water guide channel 22 and the second panel body 21 need to be separately formed. The end of the first panel body 11 is connected to the end of the sidewall of the first water guide channel 22 and sealed. In the technical solution provided by this utility model, by setting the cover part 12 to overlap with the first water-guiding sidewall 221, the vertical height of the expansion joint 3 can be increased to reduce the risk of water seepage. In addition, the water accumulated on the first roof panel 1 and the second roof panel 2 will be collected in the first water-guiding channel 22 and discharged, which can also promptly discharge the water on the roof to reduce the risk of water seepage.
[0029] Please see Figure 1 The cover portion 12 includes a first cover sidewall 121, a second cover sidewall 122, and a third cover sidewall 123 that are sequentially bent and connected. A first water-guiding sidewall 221 is inserted between the first cover sidewall 121 and the third cover sidewall 123. It can be understood that the space enclosed by the cover portion 12 and the extended space below it can both exist as expansion joints 3. The space between the first water-guiding sidewall 221 and the first cover sidewall 121, the space between the end of the first water-guiding sidewall 221 and the second cover sidewall 122, and the space between the first water-guiding sidewall 221 and the third water-guiding sidewall are all part of the expansion joint 3. Because the cover portion 12 is bent and connected, it increases the vertical height of the expansion joint 3, which can reduce the risk of water leakage. When the water accumulation on the first roof panel 1 is low, it can be drained directly. When the water accumulation is high, it can overflow the cover part 12 and flow into the first water guide channel 22 for drainage. The water accumulation on the second roof panel 2 can be drained directly through the first water guide channel 22, which significantly reduces the risk of leakage in the expansion joint 3.
[0030] Furthermore, since the cover portion 12 and the first water-guiding sidewall 221 are fastened together, the gap between them still needs to be sealed to prevent water seepage. In an optional embodiment, at least one telescopic belt 13 is connected between the first water-guiding sidewall 221 and the third cover sidewall 123. The telescopic belt 13 seals the space between the first water-guiding sidewall 221 and the third cover sidewall 123, preventing water from the first water-guiding channel 22 from entering the expansion joint 3, and can also further form a deformation space to control the expansion and contraction deformation of the first roof panel 1 and the second roof panel 2. There are various ways to set the telescopic belt 13, as long as the first water-guiding sidewall 221 and the third cover sidewall 123 are connected. In a preferred embodiment, one end of the telescopic belt 13 is located at the end of the first water-guiding sidewall 221, and the other end of the telescopic belt 13 is located at the end of the third cover sidewall 123 near the first water-guiding sidewall 221. In this way, the distance of the telescopic belt 13 is shorter, and the sealing and deformation effects are better. In an optional embodiment, the retractable belt 13 may be provided in two or more forms, and the retractable belt 13 may be provided in EPDM form.
[0031] As mentioned earlier, to increase the vertical height of the expansion joint 3, a gap is formed between the second cover sidewall 122 and the first water-guiding sidewall 221 to create a deformation space. Specifically, this invention uses a telescopic buckle plate 14 to seal both. Please refer to... Figure 1The first roof panel 1 also includes a telescopic buckle plate 14, which includes a first buckle plate 141 and a second buckle plate 142. The first buckle plate 141 is fitted to the inner side of the buckle cover 12. One end of the first buckle plate 141 is connected to the first roof panel 1, the middle part is connected to the first buckle cover side wall 121, and the tail end is connected to the third buckle cover side wall 123. One end of the second buckle plate 142 is connected to the first buckle plate 141 at the first buckle cover side wall 121, and the other end is connected to the end of the first water guide side wall 221. It should be noted that the first buckle plate 141 and the second buckle plate 142 together form an inner lining sealing plate. The buckle cover 12 does not need to be overlapped and fixed with the first water guide side wall 221. The overlap and fixation can be completed by relying on the steel pipe keel that cantilever the first roof panel 1. Furthermore, the space between the first water-guiding sidewall 221 and the third cover sidewall 123 mentioned above is sealed by the telescopic belt 13, while the space between the first water-guiding sidewall 221 and the first cover sidewall 121 can be sealed a second time by the second cover plate 142.
[0032] Furthermore, the deformable fold plate on the second buckle plate 142 can be used as a drainage channel 143. If water seeps into the expansion joint 3 under extreme weather conditions, it can also be drained through this drainage channel 143. Even further, to improve the stability of the connection between the second buckle plate 142 and the first drainage sidewall 221, the end of the second buckle plate 142 is bent and fitted to the side of the first drainage sidewall 221 to extend the contact area between the two and form a stable support.
[0033] To further improve the water drainage effect, and also considering the roof slab layout, water drainage channels need to be installed on both sides of expansion joint 3. Please refer to [link / reference]. Figure 2 A second water guide channel 15 is provided at one end of the first panel body 11 near the cover portion 12. The second water guide channel 15 includes a second water guide sidewall 151, which is connected to the first cover sidewall 121. By providing the second water guide sidewall 151, water accumulated on the first roof panel 1 can be preferentially discharged through the second water guide channel 15.
[0034] It should be noted that although the deformation space between the second cover sidewall 122 and the first water-guiding sidewall 221 can increase the vertical height of the expansion joint 3, this deformation space still needs to be controlled within a certain range to ensure structural stability. Specifically, the distance between the inner side of the second cover sidewall 122 and the upper end face of the first water-guiding sidewall 221 is 150-250mm, and an appropriate distance can be selected according to the actual conditions of different regions.
[0035] It should also be noted that a continuous waterproof membrane 4 is laid on the outer sides of the first roof panel 1 and the second roof panel 2. The waterproof membrane 4 is not only installed on the surfaces of the first panel body 11 and the second panel body 21, but also within the first water guide channel 22 and the second water guide channel 15. The waterproof membrane 4, as the outermost layer of waterproofing structure, provides the first layer of waterproof protection. The expansion joint 13, which can seal and control expansion and contraction deformation, provides the second layer of waterproof protection. The expansion joint plate 14 and the water guide channel 143 provide the third layer of waterproof protection. In summary, this utility model can significantly improve the waterproofing and drainage effect of the expansion joint 3 through three layers of waterproof protection.
[0036] Because the three-layer waterproof protection of this utility model requires multiple installation locations, and to facilitate installation without damaging the roof structure, in an optional embodiment, steel square tubes 5 are provided at the ends and middle of both the first roof panel 1 and the second roof panel 2. Each steel square tube 5 provides an installation base surface for screw installation. Please refer to [link / reference]. Figure 1 As can be seen, steel square tubes 5 are installed at the installation positions of the telescopic buckle plate 14, and screws can be installed through the steel square tubes 5 for fixing. Steel square tubes 5 can also be installed at other positions of the first roof panel 1 and the second roof panel 2 to facilitate the installation of other structures.
[0037] 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 deformed joint waterproofing construction characterised in that, include: The first roof panel includes a first panel body and a cover portion disposed at the end of the first panel body; And, a second roof panel, disposed opposite to the first roof panel, includes a second panel body and a first water guide groove disposed at the end of the second panel body, the first water guide groove having a first water guide sidewall, the cover portion forming a deformation joint on the side facing the first water guide sidewall, the first water guide sidewall being fastened to the cover portion and located within the deformation joint.
2. The deformed joint waterproofing construction of claim 1, wherein, The cover portion includes a first cover sidewall, a second cover sidewall, and a third cover sidewall that are bent and connected in sequence, with the first water-guiding sidewall inserted between the first cover sidewall and the third cover sidewall.
3. The deformed joint waterproofing construction of claim 2, wherein, At least one telescopic strap connects the first water-guiding sidewall to the third cover sidewall.
4. The deformed joint waterproofing construction of claim 3, wherein One end of the telescopic belt is located at the end of the first water-guiding sidewall, and the other end of the telescopic belt is located at the end of the third cover sidewall near the first water-guiding sidewall.
5. The deformed seam waterproof construction according to claim 2, wherein The first roof panel also includes a telescopic buckle plate, which includes a first buckle plate and a second buckle plate. The first buckle plate is disposed against the inner side of the buckle cover. One end of the second buckle plate is connected to the first buckle plate at the side wall of the first buckle cover, and the other end is connected to the end of the first water guide side wall.
6. The deformed seam waterproof construction according to claim 5, wherein The second buckle plate has a water guide groove.
7. The deformed seam waterproof construction according to claim 2, wherein The first panel body has a second water guide groove at one end near the cover portion. The second water guide groove includes a second water guide sidewall, which is connected to the first cover sidewall.
8. The deformed seam waterproof construction of claim 2, wherein, The distance between the inner side of the second cover sidewall and the upper end face of the first water guide sidewall is 150-250mm.
9. The deformed seam waterproof construction of claim 1, wherein, The outer sides of the first roof panel and the second roof panel are covered with a continuous waterproof membrane.
10. The deformed seam waterproof construction of claim 5, wherein, The first roof panel and the second roof panel are provided with steel square tubes at their ends and in the middle. Each of the steel square tubes is used to support the installation of the cover and the telescopic buckle.