ADU fabricated wall structure
By designing modular exterior walls, combined with polyurethane foam and L-shaped splicing sections, the problems of transportation convenience and assembly speed in ADU prefabricated buildings were solved, achieving structural stability and energy-saving and sound insulation effects, and improving the overall performance of ADU walls.
Patent Information
- Application Number
- CN202423263150.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2034-12-27
AI Technical Summary
Existing ADU prefabricated buildings suffer from deficiencies in transportation convenience, assembly speed, and structural stability, especially in wall structure design where it is difficult to balance the needs for easy transportation and rapid assembly.
The exterior wall modules are designed with multiple splicing components, including a main frame and inner and outer wall panels. The main frame consists of an inner frame and an outer frame, which are connected by fixed beams. The modules are filled with polyurethane foam and protrude on the outside. The exterior wall panels are connected to the foam through fasteners and L-shaped splicing parts to achieve quick assembly. The outer frame design facilitates the fixing of pre-embedded bases.
It enables convenient transportation, rapid assembly, and structural stability of ADU walls, improves energy-saving insulation and sound insulation performance, and enhances the structural strength and aesthetics through a double thermal break structure.
Smart Images

Figure CN223689126U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of house building, especially ADU assembly type wall structure. BACKGROUND
[0002] ADU (Accessory Dwelling Units) is a second residential unit with necessary living facilities that can be built on the family land, or called supporting housing, which can be basement, suite for spouse family, or garage converted apartment. In common parlance, ADU is additional living space independent of the original residential unit.
[0003] When domestic manufacturers undertake ADU construction, they usually need to prefabricate in China first and then transport to the destination for assembly. The transportation convenience, assembly speed and assembly structure stability are important factors that manufacturers need to consider. ADU assembly building mainly includes roof structure and wall structure, and how to design a suitable wall structure is one of the current problems to be solved. UTILITY MODEL CONTENT
[0004] The utility model provides an ADU assembly type wall structure to make up for the deficiency of prior art, which has the advantages of convenient transportation, fast assembly, stable assembly structure and the like.
[0005] The utility model adopts the technical scheme to solve the above technical problems:
[0006] An ADU assembly type wall structure comprises a plurality of spliced outer wall modules, wherein the outer wall module comprises a main frame, the main frame is filled with polyurethane foam material, and the inner and outer sides of the main frame are respectively provided with an inner wall plate and an outer wall plate.
[0007] The main frame comprises an inner frame and an outer frame, and a fixed beam is connected between the inner frame and the outer frame at the four peripheral edge positions. In the two adjacent spliced outer wall modules, the fixed beam on one side of the spliced outer wall module protrudes from the edge of the inner frame and the outer frame to form a connecting protruding part, and the fixed beam on the other side of the spliced outer wall module is recessed in the edge of the inner frame and the outer frame to form a connecting recessed part. The connecting protruding part can be fixed in the connecting recessed part by a first connecting piece.
[0008] Preferably, the polyurethane foam material is arranged to protrude a certain thickness outside the main frame, and a buckling part is formed around the outer wall plate to be buckled on the protruding polyurethane foam material. In the two adjacent spliced outer wall modules, a splicing joint is left between the adjacent outer frames, a first L-shaped splicing part is formed in the splicing joint of the upper outer wall plate, a second L-shaped splicing part is formed in the splicing joint of the lower outer wall plate, and the first L-shaped splicing part is buckled outside the second L-shaped splicing part.
[0009] Preferably, the main frame of each outer wall module is externally provided with a plurality of polyurethane foam areas, and a fastening joint is formed between adjacent polyurethane foam areas to fasten an outer wall panel to each polyurethane foam area.
[0010] Preferably, in the outer wall module at the bottom, the bottom of the outer frame is higher than the inner fixed beam and the inner frame, so as to form a mounting opening for fixing the pre-buried base under the outer frame; or the bottom of the inner frame is higher than the outer fixed beam and the outer frame, so as to form a mounting opening for fixing the pre-buried base under the inner frame.
[0011] Preferably, the inner wall panel is positioned by the I-shaped plate fixed to the main frame.
[0012] Preferably, the outer wall panel is an aluminum cladding panel or a galvanized aluminum magnesium panel.
[0013] Preferably, the inner wall panel is a fiber cement panel.
[0014] Preferably, the first connecting member is a stainless steel screw.
[0015] Preferably, the main frame is fixed by a plurality of zinc-aluminum-magnesium steel pipes.
[0016] The utility model adopts the above technical scheme, and has the advantages of:
[0017] 1. The plurality of outer wall modules are designed to facilitate transportation to the destination.
[0018] 2. The main frame formed by the inner frame, the outer frame and the fixed beam has the following advantages: first, the structure is relatively firm; second, the connecting concave part and the connecting convex part are matched to facilitate rapid assembly, and the assembled structure is also relatively firm; third, the structure is firm, and the light weight is ensured as much as possible, so that the transportation and assembly are more convenient; and fourth, the double-break bridge structure can greatly improve the energy-saving, heat-insulating, sound-insulating and other performances.
[0019] 3. The polyurethane foam is filled in the main frame to make the wall module have multiple functions of heat preservation, heat insulation, sound insulation and shock resistance. The polyurethane foam is externally convex, which facilitates the installation of the outer wall panel, and the outer wall panel is combined with the polyurethane foam very firmly. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 It is a side view of the wall structure of one embodiment of the utility model;
[0021] Figure 2 It is Figure 1 It is a structure schematic view of one of the main frames;
[0022] Figure 3 It isFigure 1 A part of a cross-sectional view of the enlarged structure of part A;
[0023] Figure 4 For Figure 3 An exploded structural schematic view of each wall module in the middle;
[0024] Figure 5 For Figure 1 An enlarged structural schematic view of part B in the middle;
[0025] Figure 6 A part of a top view structural schematic view of the transverse splicing of the wall module;
[0026] Figure 7 For Figure 1 A structural schematic view applied to an ADU fabricated building.
[0027] In the figure, 1, main frame, 2, polyurethane foaming material, 3, inner wallboard, 4, outer wallboard, 5, first connecting piece, 6, pre-buried base, 7, I-beam; 101, inner frame, 102, outer frame, 103, fixed beam, 104, connecting convex part, 105, connecting concave part, 106, stainless steel screw, 107, mounting port; 401, buckling part, 402, first L-shaped splicing part, 403, second L-shaped splicing part. DETAILED DESCRIPTION
[0028] In order to clearly illustrate the technical features of the present application, the present application will be described in detail below with specific embodiments and in conjunction with the accompanying drawings.
[0029] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples.
[0030] As Figures 1-7As shown, in this embodiment, the ADU assembled wall structure includes a plurality of spliced outer wall modules, the outer wall module includes a main frame 1, the main frame 1 is filled with polyurethane foam material 2, specifically 45kg grade, the inner and outer of the main frame 1 are respectively provided with inner wall panel 3 and outer wall panel 4; the main frame 1 includes inner frame 101 and outer frame 102, the inner frame 101 and the outer frame 102 are respectively connected with fixed beam 103 at the four peripheral edge positions, the fixed beam 103 can be fixed with the inner frame 101 and the outer frame 102 through non-stop steel screw 106, in the two adjacent spliced outer wall modules, the fixed beam 103 of the splicing side of one of the outer wall modules protrudes from the edge of the inner frame 101 and the outer frame 102 to form a connecting convex part 104, the fixed beam 103 of the splicing side of the other outer wall module is concave to the edge of the inner frame 101 and the outer frame 102 to form a connecting concave part 105, the connecting convex part 104 can be fixed in the connecting concave part 105 through the first connecting piece 5.
[0031] In one specific embodiment, the polyurethane foam material 2 is arranged with a certain thickness outside the main frame 1, the outer wall panel 4 is formed with a buckling part 401 around the periphery to be buckled on the protruding polyurethane foam material 2; in the two adjacent spliced outer wall modules, the upper outer wall panel 4 is formed with a first L-shaped splicing part 402 in the splicing joint, the lower outer wall panel 4 is formed with a second L-shaped splicing part 403 in the splicing joint, and the first L-shaped splicing part 402 is buckled outside the second L-shaped splicing part 403, a plurality of outer wall panels are buckled in turn from bottom to top, and in addition, the uppermost outer wall panel can be connected and reinforced with the main frame by screws or other connecting pieces. Similarly, in the left and right adjacent spliced outer wall modules, a first L-shaped splicing part and a second L-shaped splicing part can also be formed in the splicing joint according to actual needs.
[0032] In one specific embodiment, as shown in the figure, Figure 6 Each outer wall module has a plurality of polyurethane foam material areas protruding outwardly and laterally from the main frame 1, and a buckling joint is left between adjacent polyurethane foam material areas to correspond to the buckling of an outer wall panel for each polyurethane foam material area, so that a plurality of outer wall panels are installed on one outer wall module, and the buckling part of the outer wall panel is L-shaped to achieve better aesthetics.
[0033] In one specific embodiment, in order to facilitate the grounding connection of the wall structure, as shown in the figure, Figure 5As shown in the drawings, in the outer wall module located at the bottom, the bottom of the outer frame 102 is higher than the fixed beam 103 on the inner side and the inner frame 101, so as to form a mounting port 107 for fixing the pre-embedded base 6 under the outer frame 102; or the bottom of the inner frame is higher than the fixed beam on the outer side and the outer frame, so as to form a mounting port for fixing the pre-embedded base under the inner frame. The side mounting port is more convenient for fixing the wall structure and the pre-embedded base 6.
[0034] In one specific embodiment, as shown in the drawings, the inner wall plate can be positioned by, but not limited to, the fixed I-beam 7 of the main frame. Figure 6
[0035] In one specific embodiment, the outer wall plate can adopt an aluminum cladding plate or a galvanized aluminum magnesium plate; the inner wall plate can adopt a fiber cement plate; the first connecting member can adopt a stainless steel screw; and the main frame can be fixed by a plurality of zinc-aluminum-magnesium steel pipes, as shown in the drawings. Figure 2
[0036] The above specific embodiments cannot be regarded as a limitation on the protection scope of the present application, and any alternative improvement or transformation made by the skilled in the art to the embodiments of the present application falls within the protection scope of the present application.
[0037] The details not described in the present application are the known technology of the skilled in the art.
Claims
1. An ADU prefabricated wall structure, characterized in that, The application relates to an outer wall module comprising a plurality of splicing settings, wherein the outer wall module comprises a main frame filled with polyurethane foaming material, and inner and outer wall plates are arranged on the inner and outer sides of the main frame respectively. The main frame comprises an inner frame and an outer frame, and a fixed beam is connected between the inner frame and the outer frame at the positions of the four peripheral edges; in two adjacent spliced outer wall modules, the fixed beam on the splicing side of one outer wall module protrudes from the edges of the inner frame and the outer frame to form a connecting protruding part, and the fixed beam on the splicing side of the other outer wall module is recessed in the edges of the inner frame and the outer frame to form a connecting recessed part; and the connecting protruding part can be fixed in the connecting recessed part by a first connecting piece.
2. The ADU panelized wall structure of claim 1, wherein, The polyurethane foaming material is arranged to protrude a certain thickness on the outer side of the main frame, and a buckling part is formed around the outer wall plate to be buckled on the protruding polyurethane foaming material. In the upper and lower two adjacent spliced outer wall modules, a splicing joint is left between the adjacent outer frames, a first L-shaped splicing part is formed in the splicing joint on the upper outer wall plate, a second L-shaped splicing part is formed in the splicing joint on the lower outer wall plate, and the first L-shaped splicing part is buckled on the outer side of the second L-shaped splicing part.
3. The ADU panelized wall structure of claim 2, wherein, The main frame of each outer wall module is transversely protruded with a plurality of polyurethane foaming material areas, and a buckling joint is left between the adjacent polyurethane foaming material areas to correspond to the buckling of an outer wall plate on each polyurethane foaming material area.
4. The ADU panelized wall structure of claim 1, wherein, In the outer wall module located at the bottom, the bottom of the outer frame is arranged to be higher than the fixed beam and the inner frame on the inner side to form a mounting port for fixing a pre-buried base under the outer frame; or the bottom of the inner frame is arranged to be higher than the fixed beam and the outer frame on the outer side to form a mounting port for fixing a pre-buried base under the inner frame.
5. The ADU panelized wall structure of claim 1, wherein, The inner wall plate is positioned by a fixed I-shaped plate.
6. The ADU panelized wall structure of claim 1, wherein, The outer wall plate is made of an aluminum protective wall plate or a galvanized aluminum magnesium plate.
7. The ADU panelized wall structure of claim 1 or 4, wherein, The inner wall plate is made of a fiber cement plate.
8. The ADU panelized wall structure of claim 1, wherein, The first connecting piece is made of a stainless steel screw.
9. The ADU panelized wall structure of claim 1, wherein, The main frame is fixed by a plurality of zinc-aluminum-magnesium steel pipes.