Modular wall body with heat insulation, insect prevention and mildew prevention structure
By using PVC foam boards and high-density polyethylene boards as insect-proof and mildew-proof panels in modular walls, combined with aluminum alloy plate grooves and mortise and tenon joints, the problems of mold growth and poor thermal insulation performance in prefabricated buildings are solved, and the insect-proof, mildew-proof and heat insulation effects are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN XUANMU SHANGYI DECORATION ENG CO LTD
- Filing Date
- 2025-08-11
- Publication Date
- 2026-07-21
AI Technical Summary
Common prefabricated building walls are prone to mold growth, moisture accumulation, and poor thermal insulation performance.
The insect-proof board made of PVC foam board and the mildew-proof board made of high-density polyethylene board are combined with aluminum alloy plate grooves and vertical beams to form a three-layer "sandwich" structure, which can be quickly assembled through mortise and tenon joints.
It improves the wall's ability to prevent insects and mold, enhances heat insulation, and improves the stability and durability of the indoor environment.
Smart Images

Figure CN224531965U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of modular wall technology, specifically a modular wall with a heat-insulating, insect-proof, and mildew-proof structure. Background Technology
[0002] Common prefabricated building walls often use precast panels or large templates assembled on-site. The facade structure is formed through joints, adhesive bonding, or screw connections, offering advantages such as short construction cycles and modular uniformity. However, after on-site assembly, these walls are highly susceptible to mold growth or moisture accumulation, leading to mildew and impacting structural lifespan and the living environment. Furthermore, the wall panels themselves have high thermal conductivity, allowing heat to easily enter in summer and causing rapid heat loss in winter, resulting in poor thermal insulation performance.
[0003] Therefore, there is an urgent need for a modular wall with heat insulation, insect prevention, and mildew prevention structure to meet the needs of prefabricated buildings in more complex environments. Utility Model Content
[0004] The purpose of this utility model is to provide a modular wall with a heat-insulating, insect-proof, and mildew-proof structure to solve the problems mentioned in the background art, such as easy growth of mold or accumulation of moisture and poor heat insulation performance.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a modular wall with a heat-insulating, insect-proof, and mildew-proof structure, comprising trusses and vertical beams, wherein three sets of vertical beams are equally spaced at the bottom of the trusses, an upper pad is provided between the vertical beams and the trusses, a lower pad is provided at the bottom of the vertical beams, a frame is welded to the inside of the vertical beams, and five sets of plate grooves are provided inside the frame, with insect-proof plates and mildew-proof plates interlocked in the plate grooves.
[0006] As a further technical solution of this utility model, the insect-proof board has an "H" shaped cross-section and is made of PVC foam board material.
[0007] As a further technical solution of this utility model, the cross-section of the anti-mildew board is a structure with protruding upper and lower sections, and the anti-mildew board is made of high-density polyethylene board material.
[0008] As a further technical solution of this utility model, the plate groove is an aluminum alloy component, and the vertical beam is welded and fixed to the plate groove.
[0009] As a further technical solution of this utility model, multiple sets of vertical ribs are evenly built on both sides of the vertical beam, and the edge of the vertical beam is provided with a 90° bent rolled edge.
[0010] As a further technical solution of this utility model, the bottom end of the truss beam is provided with a positioning groove at the installation position of the upper pad plate. The shape of the upper pad plate is fitted and matched with the positioning groove. The two sides of the upper pad plate and the lower pad plate extend outward to form a pad connection part and a grounding part, respectively. The upper pad plate and the lower pad plate are both processed with mortise and tenon parts at the connection with the vertical beam. The mortise and tenon parts are fitted and matched with the mortise and tenon blocks.
[0011] Compared with the prior art, the beneficial effects of this utility model are: it not only ensures that the boards are tightly attached to each other to prevent moisture from seeping in through the gaps, but also, through the application of insect-proof and mildew-proof boards, gives the wall excellent insect-proof and mildew-proof capabilities, improves the stability and durability of the indoor environment, and has good heat insulation effect through the three-layer "sandwich" structure. Attached Figure Description
[0012] Figure 1 This is a frontal cross-sectional view of the present invention.
[0013] Figure 2 This is a side view of the structure of this utility model;
[0014] Figure 3 This is a schematic diagram of the pad structure of this utility model;
[0015] Figure 4 This is a front view structural diagram of the frame of this utility model.
[0016] In the diagram: 1. Truss beam; 2. Positioning groove; 3. Upper pad plate; 4. Vertical beam; 5. Rolled edge; 6. Frame; 7. Board groove; 8. Insect-proof board; 9. Mildew-proof board; 10. Lower pad plate; 11. Mortise and tenon block; 12. Vertical rib; 13. Pad joint; 14. Mortise and tenon joint; 15. Grounding part. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.
[0018] Please see Figure 1-4An embodiment of this utility model is provided: a modular wall with a heat-insulating, insect-proof, and mildew-proof structure, including a truss beam 1 and vertical beams 4. The bottom end of the truss beam 1 is supported by three sets of vertical beams 4 at equal intervals. An upper pad 3 is placed between the vertical beams 4 and the truss beam 1. A lower pad 10 is placed at the bottom end of the vertical beams 4. A frame 6 is welded to the inside of the vertical beams 4. Five sets of plate grooves 7 are set inside the frame 6. Insect-proof plates 8 and mildew-proof plates 9 are staggered in the plate grooves 7. The insect-proof plate 8 has an "H" shaped cross section and is made of PVC foam board material. The mildew-proof plate 9 has an upper and lower convex cross section and is made of high-density polyethylene board material.
[0019] Specifically, such as Figure 1 , Figure 2 and Figure 4 As shown, the vertical beam 4 serves as a vertical load-bearing component, with a frame 6 welded to its inner side. Five sets of slots 7 are set inside the frame 6, with insect-proof boards 8 and mildew-proof boards 9 staggered in the middle of each slot 7. The insect-proof board 8 has an "H" shaped cross-section and is made of PVC foam board material, while the mildew-proof board 9 has an upper and lower convex cross-section and is made of high-density polyethylene board material. This structure not only ensures that the boards are tightly fitted together to prevent moisture from seeping in through the gaps, but also, through the application of insect-proof boards 8 and mildew-proof boards 9, gives the wall excellent insect-proof and mildew-proof capabilities, improves the stability and durability of the indoor environment, and has good heat insulation effect through the three-layer "sandwich" structure.
[0020] The plate groove 7 is an aluminum alloy component. The vertical beam 4 is welded and fixed to the plate groove 7. The bottom end of the truss beam 1 is provided with a positioning groove 2 at the installation position of the upper pad 3. The shape of the upper pad 3 fits and matches the positioning groove 2. The two sides of the upper pad 3 and the lower pad 10 extend outward to form a padding part 13 and a grounding part 15, respectively. The upper pad 3 and the lower pad 10 are connected to the vertical beam 4 with mortise and tenon parts 14. The mortise and tenon parts 14 fit and match the mortise and tenon blocks 11.
[0021] Specifically, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, each of the truss beams 1 has a positioning groove 2 at its bottom end. The upper pad 3 fits into the positioning groove 2 to form a stable support. The upper pad 3 and the lower pad 10 extend outward on both sides to form a padding part 13 and a grounding part 15, respectively. The padding part 13 is used to fill the transverse gaps, and the grounding part 15 provides a direct connection with the ground to prevent the wall from slipping. At the same time, mortise and tenon parts 14 are processed at the connection between the pad and the vertical beam 4. The mortise and tenon blocks 11 are used to achieve a snap-fit connection, which facilitates quick assembly and makes the upper and lower components form an interlocking connection, reducing displacement and cracks caused by deformation and preventing water seepage and mold from the cracks.
[0022] Multiple sets of vertical ribs 12 are evenly built on both sides of the vertical beam 4, and the edge of the vertical beam 4 is provided with a 90° bent rolled edge 5;
[0023] Specifically, such as Figure 1 and Figure 2 As shown, the vertical beam 4 has a 90° rolled edge 5, which improves the edge rigidity and restricts its bending deformation under load. The vertical ribs 12, which are evenly distributed inside the vertical beam 4, serve as the main vertical load-bearing components and restrict the position of the insect-proof board 8 and the mildew-proof board 9, so that the wall as a whole has excellent mechanical stability and can meet the modular building needs under various environmental conditions.
[0024] Working Principle: In the actual construction process of the modular wall, the construction workers first lay down a lower base plate 10 under the building structure. Vertical beams 4 are then embedded above the lower base plate 10, with an upper base plate 3 installed at the top of each vertical beam 4. During construction, the upper base plate 3 is inserted into the positioning groove 2 to ensure stable contact and form a wall reference surface. Vertical beams 4 are then vertically placed and installed on each upper base plate 3, forming a whole through cooperation with the upper base plate 3 and the subsequent lower base plate 10. To improve structural stability, tenon and mortise joints 14 are pre-processed at the connection between the vertical beam 4 and the upper and lower base plates, corresponding to the tenon and mortise blocks 11. This interlocking connection allows the wall components to be quickly positioned, assembled, and disassembled without bolts or welding, preventing cracking. The frame 6 has five sets of slots 7 designed according to modules, with insect-proof boards 8 and mildew-proof boards 9 staggered in the middle of each slot 7. Among them, the insect-proof board 8 is made of PVC foam board with an "H" shaped cross section, which has excellent insect resistance and heat insulation. The mildew-proof board 9 is made of high-density polyethylene board with a raised cross section, which has good resistance to water vapor penetration and mildew. The staggered joint between the two not only ensures the airtightness and interlayer support of the multi-layer wall structure, forming a "sandwich" heat insulation structure, reducing heat conduction and improving indoor environmental comfort. In terms of stress, multiple sets of vertical ribs 12 are evenly distributed on the inner side of the vertical beam 4, and 90° bent rolled edges 5 are set at the edges. The rolled edges 5 enhance the shear rigidity of the edges and limit edge deformation. The vertical ribs 12 serve as the main vertical ribs, which not only bear the self-weight of the wall and the load transfer, but also play a limiting support role for the frame 6 and protective panels, preventing the panels from falling off or shifting, and enhancing the overall stability and seismic performance of the wall.
[0025] In summary, through the above-mentioned structural assembly methods and material combinations, the modular wall achieves rapid alignment, mortise and tenon connection, panel insertion, and structural stability during the construction process. During use, it has good insect-proof, mildew-proof, and heat insulation properties, making it particularly suitable for temporary buildings, prefabricated houses, and storage warehouses with high environmental adaptability requirements.
[0026] 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 illustrative 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. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A modular wall structure with heat insulation, insect prevention, and mildew prevention, comprising trusses (1) and vertical beams (4), characterized in that: The bottom end of the truss (1) is supported by three sets of vertical beams (4) at equal intervals. The gap between the vertical beam (4) and the truss (1) is provided with an upper pad (3). The bottom end of the vertical beam (4) is provided with a lower pad (10). A frame (6) is welded inside the vertical beam (4). Five sets of plate grooves (7) are provided inside the frame (6). Insect-proof plates (8) and mildew-proof plates (9) are interspersed in the plate grooves (7).
2. A modular wall structure with heat insulation, insect prevention, and mildew prevention as described in claim 1, characterized in that: The insect-proof board (8) has an "H" shaped cross section and is made of PVC foam board material.
3. A modular wall structure with heat insulation, insect prevention, and mildew prevention as described in claim 1, characterized in that: The anti-mildew board (9) has a cross-section with protruding upper and lower sections, and the anti-mildew board (9) is made of high-density polyethylene board material.
4. A modular wall structure with heat insulation, insect prevention, and mildew prevention as described in claim 1, characterized in that: The plate groove (7) is an aluminum alloy component, and the vertical beam (4) is welded and fixed to the plate groove (7).
5. A modular wall structure with heat insulation, insect prevention, and mildew prevention as described in claim 1, characterized in that: Multiple sets of vertical ribs (12) are evenly built on both sides of the vertical beam (4), and the edge of the vertical beam (4) is provided with a 90° bent rolled edge (5).
6. A modular wall structure with heat insulation, insect prevention, and mildew prevention as described in claim 1, characterized in that: The bottom end of the truss (1) is provided with a positioning groove (2) at the installation position of the upper pad (3). The shape of the upper pad (3) fits and matches the positioning groove (2). The two sides of the upper pad (3) and the lower pad (10) extend outward to form a padding part (13) and a grounding part (15), respectively. The upper pad (3) and the lower pad (10) are connected to the vertical beam (4) with mortise and tenon parts (14). The mortise and tenon parts (14) fit and match the mortise and tenon block (11).