Roof sandwich panel
By employing an interlocking structure and a nail-free splicing design using thermoplastic polyolefin waterproof membrane in the roof sandwich panels, the problem of water leakage at the joints of the sandwich panels was solved, waterproof sealing was improved, the temperature of the metal roof panels was reduced, and a stable structural connection was achieved.
Patent Information
- Application Number
- CN202423083744.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-13
AI Technical Summary
Existing roof sandwich panels pose a risk of water leakage at the joints, and the metal material causes high surface temperatures in summer, making it impossible to effectively solve the deformation problem caused by thermal expansion and contraction of the metal.
The design employs an interlocking structure between the outer and inner panels, using a waterproof membrane made of thermoplastic polyolefin to cover the splicing joints. The joints are formed by melting the membrane at high temperatures. The outer panel surface has an extended edge of the waterproof membrane that is bonded to the splicing joints. The inner panel is filled with rock wool and polyurethane. The outer panel surface has a raised structure for installing solar photovoltaic panels.
It achieves a nail-free waterproof effect, eliminates the risk of leakage, reduces the temperature of the metal roof panels, and improves the stability and waterproof sealing of the structure.
Smart Images

Figure CN223577452U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of building materials, specifically refers to a roof sandwich panel. BACKGROUND
[0002] The sandwich panel has the characteristics of heat preservation, fire prevention, sound insulation, light weight and high strength, and can be widely used in house construction. At present, the sandwich panel is overlapped in the length direction, and additional nails are used to fix the joint of the two panels. The waterproof sealing relies entirely on glue. Because the metal material conducts heat, the surface temperature of the sandwich panel is high in summer. Moreover, the nodes such as lighting, skylight and ridge of the metal roof panel and the roof are basically fixed by nails and glue, which may cause water leakage. Although the metal-faced hidden-nail version of the sandwich panel has been developed on the market, the waterproof sealing is improved by the hidden-nail design after overlapping, but the deformation caused by thermal expansion and contraction of the metal cannot be changed, and there is still a risk of water leakage. SUMMARY
[0003] The utility model solves the technical problem of the prior art and provides a roof sandwich panel. To solve the above technical problems, the utility model adopts the following technical scheme:
[0004] A roof sandwich panel comprises an outer panel and an inner panel, and a filler is arranged between the outer panel and the inner panel. The outer panel and the inner panel and the clamped filler form a splicing joint one and a splicing joint two on both sides. A nail groove is formed on the surface of the outer panel at the splicing joint one. The splicing joint two and the splicing joint one are mutually engaged and spliced and cover the nail groove. A waterproof roll is arranged on the surface of the outer panel. The waterproof roll extends outward at the splicing joint two to form an extension edge. The extension edge is dissolved at high temperature and is bonded with the waterproof roll of the outer panel at the splicing joint one to form an integral whole, thereby realizing nail-free splicing.
[0005] Further, the inner panel at the splicing joint one and the splicing joint two is provided with a "tooth" type engagement structure. The outer panel at the splicing joint one is provided with a wave crest structure. The nail groove is formed on the surface of the wave crest structure. The outer panel at the splicing joint two is provided with a plate material protruding outward. The protruding plate material is provided with a wave trough structure. The wave trough structure is clamped in the wave crest structure and covers the nail groove.
[0006] Further, the waterproof roll is made of thermoplastic polyolefin material, and the waterproof roll is bonded on the outer panel.
[0007] Further, the surface of the outer panel is provided with a waist-shaped protruding structure.
[0008] Further, the filler is made of rock wool and polyurethane or glass wool and polyurethane or polyurethane.
[0009] Compared with the prior art, the roof sandwich panel of the utility model, after the sandwich panels are fixed through the exposed nails, the exposed nails are covered and welded by the coiled material of thermoplastic polyolefin material, the remaining joints of the roof can also be covered and welded by the coiled material of thermoplastic polyolefin material, and the water leakage hidden danger is eliminated. BRIEF DESCRIPTION OF DRAWINGS
[0010] Figure 1 is the structural schematic diagram of the utility model;
[0011] Figure 2 is the structural schematic diagram of the sandwich panel splicing of the utility model;
[0012] Figure 3 is the structural schematic diagram of the outer plate of the utility model;
[0013] Figure 4 is the structural schematic diagram of the inner plate of the utility model;
[0014] Figure 5 is the structural schematic diagram of the sandwich panel in the embodiment of the utility model;
[0015] Figure 6 is the structural schematic diagram of the mutual splicing of the sandwich panel in the embodiment of the utility model;
[0016] Figure 7 is Figure 6 the enlarged view of A in the figure;
[0017] 1, outer plate, 2, inner plate, 3, filler, 4, splicing joint one, 5, splicing joint two, 6, nail groove, 7, waterproof coiled material, 8, extension edge, 9, convex structure, 10, rock wool, 11, polyurethane, 12, occlusion structure, 13, wave crest structure, 14, wave trough structure. DETAILED DESCRIPTION
[0018] The technical scheme in the embodiment of the utility model will be described clearly and completely below.
[0019] As Figure 1 shown, a kind of roof sandwich panel, including outer plate 1 and inner plate 2, and filler 3 is equipped between outer plate 1 and inner plate 2, and outer plate 1 and inner plate 2 and clamped filler 3 form splicing joint one 4 and splicing joint two 5 respectively at both sides, splicing joint one 4 place is processed with nail groove 6 on the surface of outer plate 1, nail groove 6 place is connected with galvanized purlin that is fixed in advance by high-strength screw, as Figure 2As shown, the spliced joint two 5 and the spliced joint one 4 are engaged with each other and cover the nail groove, the surface of the outer plate 1 is covered with a waterproof coiled material 7, the waterproof coiled material 7 is adhered to the outer plate 1, the waterproof coiled material 7 forms an extension edge 8 outwardly at the spliced joint two 5, the extension edge 8 is adhered to the waterproof coiled material of the outer plate at the spliced joint one 4 to form an integral whole through high-temperature dissolution, and the nail splicing is formed.
[0020] The surface of the outer plate 1 is processed with a beam-waist-shaped protruding structure 9, and the protruding structure 9 is used for installing a solar photovoltaic panel.
[0021] The filler 3 adopts rock wool and polyurethane or glass wool and polyurethane or polyurethane.
[0022] Embodiment
[0023] As shown, Figures 3-5 In the embodiment, the outer plate 1 adopts 0.6mm aluminum-zinc plated steel plate, the inner surface of the outer plate 1 is 5um anticorrosive epoxy resin paint or pet, pvc anticorrosive film, the waterproof coiled material 7 adopts thermoplastic polyolefin material, the waterproof coiled material is adhered to the outer surface of the outer plate through high-molecular hot melt adhesive film, the inner plate 2 adopts galvanized steel plate, and can also adopt aluminum-zinc plated steel plate, zinc-aluminum-magnesium plate, aluminum-magnesium-manganese plate or stainless steel plate, the surface coating of the inner steel plate adopts PE, SMP, HDP or PVDF, and can also select anticorrosive film PET, PVC or PVDF film, the thickness of the inner plate 2 is generally 0.5mm-0.8mm, the filler 3 adopts the combination of rock wool and polyurethane, the main thermal insulation material between the outer plate 1 and the inner plate 2 adopts rock wool 10, and the filler at the spliced joint one 4, the spliced joint two 5 and the protruding structure 9 adopts polyurethane 11.
[0024] As shown, Figure 6 and Figure 7 The inner plate 2 at the spliced joint one 4 and the spliced joint two 5 is provided with a “tooth”-shaped engagement structure 12, when the sandwich panel is spliced, the “tooth”-shaped engagement structure 12 is engaged with each other, the outer plate 1 at the spliced joint one 4 is provided with a wave peak structure 13, the nail groove 6 is processed on the surface of the wave peak structure 13, the outer plate 1 at the spliced joint two 5 is provided with a plate material protruding outwardly, the plate material protruding outwardly is processed with a wave valley structure 14, the wave valley structure 14 is clamped at the wave peak structure 13 and covers the nail groove 6.
[0025] The extension edge 8 formed by the waterproof coiled material 7 outwardly at the spliced joint two 5 is welded through hot air, and is adhered to the waterproof coiled material 7 of the outer plate at the spliced joint one 4 to form an integral whole, hides the spliced joint, and has a good sealing effect, and has a good anti-seepage effect.
[0026] The utility model discloses not limit to the embodiment, and the technical personnel in the field still can make some correction or change without departing from the spirit of the utility model, namely the public range, therefore the right protection scope of the utility model is with the range that the right claim book defines as accurate.
Claims
1. A roof sandwich panel characterised in that: The outer plate and the inner plate are provided with a filler therebetween, and the outer plate and the inner plate and the clamped filler form a splice joint one and a splice joint two at two sides respectively, the surface of the outer plate at the splice joint one is provided with a nail groove, the splice joint two and the splice joint one are engaged and spliced with each other and cover the nail groove, the surface of the outer plate is covered with a waterproof roll material, the waterproof roll material forms an extension edge outward at the splice joint two, the extension edge is dissolved at high temperature and is bonded with the waterproof roll material of the outer plate at the splice joint one to form an integral whole, and a nail-free splice joint is formed.
2. A roof sandwich panel according to claim 1, characterised in that: The inner plate at the splice joint one and the splice joint two is provided with a tooth-shaped engagement structure, the outer plate at the splice joint one is provided with a wave crest structure, the nail groove is processed on the surface of the wave crest structure, and the outer plate at the splice joint two is provided with a plate material protruding outward, the protruding plate material is processed with a wave trough structure, the wave trough structure is clamped at the wave crest structure and covers the nail groove.
3. A roof sandwich panel according to claim 1, characterised in that: The waterproof roll material is made of thermoplastic polyolefin material, and the waterproof roll material is bonded on the outer plate.
4. A roof deck batten according to claim 1, wherein: The surface of the outer plate is processed with a waist-shaped protruding structure.
5. A roof deck batten according to claim 1, wherein: The filler is made of rock wool and polyurethane or glass wool and polyurethane or polyurethane.