Multi-layer waterproof heat-preservation wall surface structure
By installing insulation boards, sealing layers, and hydrophobic layers on the wall, combined with expansion bolts and other structures, the problem of insufficient insulation in existing waterproof walls in northern regions is solved, achieving waterproofing, moisture-proofing, and simplified installation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2026-03-31
AI Technical Summary
Existing waterproof wall structures lack insulation in northern regions, and the installation of insulation is difficult and complex.
The wall structure employs a multi-layered waterproof and thermal insulation system, including insulation boards, a sealing layer, and a hydrophobic layer, which are fixed with expansion bolts and combined with a lime-sand base layer to form a waterproof, moisture-proof, and thermal insulation function.
It achieves waterproof and moisture-proof effects in northern regions, while simplifying the installation process of the insulation board and improving the bonding strength and durability with the wall.
Smart Images

Figure CN224063688U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building technology, and specifically to a multi-layered waterproof and heat-insulating wall structure. Background Technology
[0002] Water absorption by walls is a major cause of wall problems, and keeping walls dry is an effective way to maintain their strength. Utility model patent CN221856048U discloses a waterproof wall surface. Its key technical features include an installation layer and a waterproof layer. The waterproof layer has a surface layer on its surface. One side of the installation layer has several protrusions for embedding into the wall, and the other side has several grooves. The surface of the waterproof layer has inclined plates with interlocking slots that overlap with the grooves. One side of the surface layer engages with these slots. This device uses the surface layer to initially block water, preventing water from the spray nozzle from directly hitting the wall. When some water vapor or moisture from the surface layer permeates through, the hydrophobic surface of the inclined plates causes the water vapor to condense into droplets, which then flow into the drainage channels and are discharged through the drain outlets. This further prevents moisture from contacting the wall and eliminates the impact of long-term dampness on the wall's strength. However, such a wall structure does not provide insulation in northern regions, and directly adding insulation boards to this utility model is difficult to assemble.
[0003] Therefore, existing technologies still need to be improved and developed. Utility Model Content
[0004] The purpose of this utility model is to address the technical defects and deficiencies in the background technology by providing a multi-layered waterproof and heat-insulating wall structure.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] This utility model provides a multi-layered waterproof and heat-insulating wall structure, including a wall body, an insulation board, and several expansion bolts. The inner side of the insulation board is located on the outer side of the wall body, and the outer side of the insulation board has several mounting grooves. The expandable ends of the expansion bolts pass through the mounting grooves and are fixedly connected to the wall body. The outer side of the insulation board is provided with a sealing layer and a hydrophobic layer. Specifically, the sealing layer can be formed by epoxy resin coating, that is, the sealing layer can be an epoxy resin layer. The sealing layer mainly seals the installation gaps on the insulation board and waterproofs the entire insulation board. The hydrophobic layer is formed by uniformly applying hydrophobic coating to the outer side of the sealing layer. Water droplets can form spherical shapes on the surface of the hydrophobic layer and quickly roll off. Through the above structural design, the wall can achieve waterproof and moisture-proof properties, as well as heat insulation. Moreover, the insulation board is easy to install and can be firmly bonded to the wall surface.
[0007] According to the above scheme, the opening cover of the mounting groove is equipped with a baffle. Through the above structural setting, the baffle seals the opening of the mounting groove, keeps the insulation board flat, and facilitates the coating of the sealing layer.
[0008] According to the above scheme, a limiting hole is provided inside the opening of the mounting groove, and a protrusion is provided on the outer periphery of the baffle, the protrusion engaging with the limiting hole. This structural design facilitates the rapid installation of the baffle.
[0009] According to the above scheme, a gasket is provided in the mounting groove, and the expandable end of the expansion bolt passes through the gasket and the mounting groove in sequence to be fixedly connected to the wall. Through this structural arrangement, i.e., the gasket is placed between the expansion bolt and the mounting groove, the expansion bolt can be prevented from loosening.
[0010] According to the above scheme, the mounting groove is an elongated groove with an elongated mounting hole at the bottom. The expandable end of the expansion bolt passes through the elongated mounting hole and is fixedly connected to the wall. Specifically, the expansion bolt can slide along its length in the elongated mounting hole. With this structural design, during installation, multiple mounting holes are pre-drilled on the wall according to the positions of the expansion bolts. Then, the insulation board is attached to the outer surface of the wall, and the position of the expansion bolt is adjusted so that the expandable end of the expansion bolt aligns with the mounting hole on the wall. The expansion bolt is then rotated into the mounting hole inside the wall, effectively improving installation efficiency.
[0011] According to the above scheme, the outer side of the wall and the inner side of the insulation board are provided with a mortar base layer, a mortar bonding layer, a mortar plaster layer and a lime plaster finish layer in sequence from the inside to the outside.
[0012] According to the above scheme, a hanging net is also fixed between the outer surface of the insulation board and the sealing layer. This structural arrangement makes the adhesion between the epoxy resin sealing layer and the insulation board more stable, preventing loosening.
[0013] According to the above scheme, a wear-resistant layer is provided on the side of the hydrophobic layer away from the sealing layer. Through the above structural arrangement, the wear-resistant layer can improve the durability and wear resistance of the insulation board, and can directly withstand the erosion of external mechanical impacts, friction, and natural factors such as wind, sun, and rain. By adding a wear-resistant layer, the service life of the insulation board can be effectively extended, and the damage and repair costs of the insulation board due to wear can be reduced.
[0014] The beneficial effects of this utility model are:
[0015] This utility model has an insulation board, a sealing layer and a hydrophobic layer sequentially arranged on the wall. After the arrangement, the entire wall can not only be waterproof and moisture-proof, but also have the function of heat preservation. Moreover, the insulation board is easy to install and can be firmly bonded to the wall surface. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 yes Figure 1 Enlarged structural diagram at point A;
[0018] Figure 3 This is a partial structural schematic diagram of the present invention;
[0019] Figure 4 yes Figure 3 A partial cross-sectional view.
[0020] In the diagram: 1. Wall; 2. Mortar base layer; 3. Mortar bonding layer; 4. Mortar finishing layer; 5. White lime plaster finish layer; 6. Insulation board; 7. Mesh reinforcement; 8. Sealing layer; 9. Drainage layer; 10. Wear-resistant layer; 61. Expansion bolt; 62. Installation groove; 63. Baffle; 64. Protrusion; 65. Gasket. Detailed Implementation
[0021] The technical solution of this utility model will be described below with reference to the accompanying drawings and embodiments.
[0022] Example 1
[0023] like Figure 1-4 As shown, this utility model provides a multi-layered waterproof and heat-insulating wall structure, including a wall body 1, an insulation board 6, and a plurality of expansion bolts 61. The inner side of the insulation board 6 is located on the outer side of the wall body 1, and the outer side of the insulation board 6 has a plurality of mounting grooves 62. The expandable ends of the expansion bolts 61 pass through the mounting grooves 62 and are fixedly connected to the wall body 1. The outer side of the insulation board 6 is provided with a sealing layer 8 and a hydrophobic layer 9. Specifically, the sealing layer 8 is formed by uniformly applying epoxy resin to the outer side of the insulation board 6, i.e., an epoxy resin layer, and the hydrophobic layer 9 is formed by uniformly applying hydrophobic coating to the outer side of the sealing layer 8. Through the above structural design, the wall body 1 can achieve waterproofing and moisture-proofing, as well as heat insulation. Moreover, the insulation board 6 is easy to install and can be firmly bonded to the wall surface.
[0024] Furthermore, such as Figure 4 As shown, the opening of the mounting groove 62 is covered with a baffle 63. Through the above structural arrangement, the baffle 63 seals the opening of the mounting groove 62, keeping the insulation board 6 flat and facilitating the coating of the sealing layer 8.
[0025] Furthermore, the mounting groove 62 has a limiting hole inside its opening, and the baffle 63 has a protrusion 64 on its outer periphery, which engages with the limiting hole. This structural design facilitates the rapid installation of the baffle 63.
[0026] Furthermore, a gasket 65 is provided within the mounting groove 62, and the expandable end of the expansion bolt 61 passes sequentially through the gasket 65 and the mounting groove 62 to be fixedly connected to the wall 1. Through this structural arrangement, with the gasket 65 positioned between the expansion bolt 61 and the mounting groove 62, the expansion bolt 61 can be prevented from loosening.
[0027] Furthermore, the mounting groove 62 is an elongated groove, and the bottom of the mounting groove 62 is provided with an elongated mounting hole (not shown in the figure). The expandable end of the expansion bolt 61 passes through the elongated mounting hole and is fixedly connected to the wall 1. Specifically, the expansion bolt 61 can slide along its length on the elongated mounting hole. With the above structural arrangement, during installation, multiple mounting holes are pre-drilled on the wall 1 according to the positions of the expansion bolts 61. Then, the insulation board 6 is attached to the outer surface of the wall 1, and the position of the expansion bolts 61 is slidably adjusted so that the expandable end of the expansion bolts 61 is aligned with the mounting holes on the wall 1. The expansion bolts 61 are then rotated into the mounting holes inside the wall 1, which can effectively improve installation efficiency.
[0028] Furthermore, such as Figure 2 As shown, from the inside out, the outer side of the wall 1 and the inner side of the insulation board 6 are provided with a mortar base layer 2, a mortar bonding layer 3, a mortar surface layer 4, and a lime plaster finish layer 5.
[0029] Furthermore, a hanging mesh 7 is also fixedly provided between the outer surface of the insulation board 6 and the sealing layer 8. This structural arrangement makes the adhesion between the epoxy resin-formed sealing layer 8 and the insulation board 6 more stable, preventing loosening.
[0030] Furthermore, a wear-resistant layer 10 is provided on the side of the hydrophobic layer 9 away from the sealing layer 8. Through the above structural arrangement, the wear-resistant layer 10 can improve the durability and wear resistance of the insulation board 6, and can directly withstand the erosion of external mechanical impacts, friction, and natural factors such as wind, sun exposure, and rain. By adding the wear-resistant layer 10, the service life of the insulation board 6 can be effectively extended, and the damage and repair costs of the insulation board 6 caused by wear can be reduced.
[0031] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.
Claims
1. A multi-layered waterproof and thermal insulation wall structure comprising a wall body (1), characterized in that, It further comprises a thermal insulation board (6) and a plurality of expansion bolts (61), the inner side of the thermal insulation board (6) is arranged on the outer side of the wall body (1), the outer side of the thermal insulation board (6) is provided with a plurality of mounting grooves (62), the expandable end of the expansion bolt (61) is fixedly connected with the wall body (1) through the mounting groove (62), and the outer side of the thermal insulation board (6) is sequentially provided with a sealing layer (8) and a hydrophobic layer (9).
2. The multi-layered, water-resistant, and thermal- insulated wall structure according to claim 1, wherein, The opening cover of the mounting groove (62) is provided with a baffle (63).
3. The multi-layered, water-resistant, and thermal-insulation wall structure according to claim 2, wherein, The inner side of the opening of the mounting groove (62) is provided with a limiting hole, and the outer periphery of the baffle (63) is provided with a protruding block (64), and the protruding block (64) is buckled with the limiting hole.
4. The multi-layered, water-resistant, and thermal- insulated wall structure according to claim 1, wherein, The mounting groove (62) is provided with a gasket (65), and the expandable end of the expansion bolt (61) is fixedly connected with the wall body (1) through the gasket (65) and the mounting groove (62) in sequence.
5. The multi-layered, water-resistant, and thermal- insulated wall structure according to claim 1, wherein, The mounting groove (62) is a long slot, the bottom of the mounting groove (62) is provided with a long strip-shaped mounting hole, and the expandable end of the expansion bolt (61) is fixedly connected with the wall body (1) through the long strip-shaped mounting hole.
6. The multi-layered, water-resistant, and thermal- insulated wall structure according to claim 1, wherein, The outer side of the wall body (1) and the inner side of the thermal insulation board (6) are sequentially provided with a mortar base layer (2), a mortar plaster combination layer (3), a mortar plaster finishing layer (4) and a white lime mortar cover layer (5) from inside to outside.
7. The multi-layered, water-resistant, and thermal- insulated wall structure according to claim 1, wherein, The outer side of the thermal insulation board (6) and the sealing layer (8) are further fixedly provided with a hanging net (7).
8. The multi-layered, water-resistant, and thermal-protective wall structure according to any one of claims 1-7, wherein, The sealing layer (8) is an epoxy resin layer.
9. The multi-layered, water-resistant, and thermal- insulated wall structure of claim 1, wherein, The hydrophobic layer (9) is provided with a wear-resistant layer (10) away from the sealing layer (8). The mounting groove (62) is a long slot, the bottom of the mounting groove (62) is provided with a long strip-shaped mounting hole, and the expandable end of the expansion bolt (61) is fixedly connected with the wall body (1) through the long strip-shaped mounting hole.
Citation Information
Patent Citations
Waterproof wall surface
CN221856048U