A base wall structure suitable for EPS board thin-plastered exterior wall insulation system

Abstract

This invention relates to a foundation wall structure suitable for EPS board thin-plastered exterior wall insulation systems. The purpose is to address the problems of existing building walls being prone to chimney effects and insulation layer detachment during fires. This invention's foundation wall structure is constructed from multiple masonry blocks; each cavity of a block is fitted with a cover plate, and support strips are positioned between upper and lower blocks. By incorporating a horizontal annular flange and cover plate in the center of each cavity of the block, the resulting cover plate vertically isolates airflow, preventing the chimney effect caused by vertically connecting the channels of the building blocks, thus improving the fire resistance of the exterior wall insulation system. The support strips support the EPS insulation board and corresponding fixing components, providing support and increasing the connection strength between the foundation wall structure and the EPS insulation board, reducing the risk of insulation layer detachment.

Description

Technical Field

[0001] This utility model relates to a basic wall structure. Background Technology

[0002] With the increasing demands for building energy conservation and insulation, EPS (molded polystyrene foam) board thin-plastered exterior wall insulation system has become widely used in the field of modern building exterior wall insulation due to its advantages such as low thermal conductivity, light weight, excellent thermal insulation performance, convenient construction and relatively low cost.

[0003] In recent years, fires involving external wall insulation systems in high-rise buildings have been frequent, causing severe losses. EPS insulation boards are flammable. The voids between the EPS insulation board and the building wall, or the vertical connections between the ducts in the building blocks, create a "chimney effect." The chimney effect refers to the phenomenon where air rises or falls along a vertical slope, thus enhancing air convection. In buildings and structures with chimney-like characteristics, such as vertical ventilation (smoke exhaust) ducts and stairwells, air (including smoke) rapidly diffuses or exits the building due to density differences. During a fire, the chimney effect causes the fire at the bottom to spread rapidly upwards, exacerbating the fire's area and increasing the difficulty of firefighting and rescue. Furthermore, EPS insulation boards often experience insulation layer detachment some time after installation or after cyclical temperature changes between winter and summer. The reasons for insulation layer detachment include excessive load on the surface of the insulation board, unreasonable measures to resist negative wind pressure, insufficient strength of the adhesive mortar or adhesive process used, material aging, uneven construction, and temperature changes. Utility Model Content

[0004] In order to solve the problems of existing building walls being prone to chimney effect during fires and insulation layers being prone to falling off, this utility model proposes a basic wall structure suitable for EPS board thin-plastered external wall insulation systems.

[0005] This utility model applies to the basic wall structure of the EPS board thin plastering external wall insulation system, which is constructed by multiple blocks (1); the blocks (1) are hollow blocks, and a horizontal annular retaining edge (2) is provided in the middle of each cavity of the blocks (1), and a cover plate (4) is provided in each cavity of the blocks (1), and the cover plate (4) is provided on the upper surface of the annular retaining edge (2); a notch (5) is provided on the lower end face of the outer wall of the blocks (1); the support strip (3) is composed of a strip (7) and a stop block (8), the stop block (8) is fixed to one end of the strip (7), and multiple slots (9) are provided on the lower surface of the strip (7); the support strip (3) is provided between the upper and lower blocks (1), the middle strip (7) of the support strip (3) is provided in the notch (5), the slots (9) are locked on the side wall of the lower block (1), and the stop block (8) is provided in the cavity of the blocks (1).

[0006] The principle and beneficial effects of this utility model are as follows:

[0007] This utility model applies to the hollow blocks (1) in the foundation wall structure of the EPS board thin-plastered external wall insulation system. By setting a horizontal annular baffle (2) and a cover plate (4) in the middle of each cavity of the block (1), the cover plate (4) can achieve airflow isolation in the vertical direction, avoiding the chimney effect generated after the vertical connection of the building blocks, and improving the fire resistance of the external wall insulation system. The support strip (3) is used to support the EPS insulation board and the corresponding fixing components, playing a supporting role, improving the connection strength between the foundation wall structure and the EPS insulation board, and reducing the risk of insulation layer falling off. At the same time, multiple slots (9) set on the lower surface of the strip (7) are used to adjust the length of the strip (7) to adapt to insulation systems of different thicknesses, thus improving the applicability. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the foundation wall structure applicable to the EPS board thin-plastered exterior wall insulation system in Example 1;

[0009] Figure 2 This is a top view of the masonry block (1) in the foundation wall structure of Example 1;

[0010] Figure 3 for Figure 2 Sectional view along axis AA;

[0011] Figure 4 A schematic diagram of the structure supporting the strip (3). Detailed Implementation

[0012] The technical solution of this utility model is not limited to the specific embodiments listed below, but also includes any reasonable combination of the specific embodiments.

[0013] Specific implementation method one: This implementation method is applicable to the foundation wall structure of the EPS board thin plastering external wall insulation system, which is constructed by multiple blocks (1); the block (1) is a hollow block, and a horizontal annular retaining edge (2) is provided in the middle of each cavity of the block (1). A cover plate (4) is provided in each cavity of the block (1), and the cover plate (4) is provided on the upper surface of the annular retaining edge (2); a notch (5) is provided on the lower end face of the outer wall of the block (1); the support strip (3) is composed of a strip (7) and a stop block (8). The stop block (8) is fixed to one end of the strip (7), and multiple slots (9) are provided on the lower surface of the strip (7); the support strip (3) is provided between the upper and lower blocks (1), the middle strip (7) of the support strip (3) is provided in the notch (5), the slots (9) are attached to the side wall of the lower block (1), and the stop block (8) is provided in the cavity of the block (1).

[0014] This embodiment applies to hollow blocks (1) in the foundation wall structure of the EPS board thin-plastered exterior wall insulation system. By setting a horizontal annular baffle (2) and a cover plate (4) in the middle of each cavity of the block (1), the cover plate (4) forms a vertical airflow barrier, avoiding the chimney effect generated after the vertical connection of the building blocks' channels, thus improving the fire resistance of the exterior wall insulation system. The support strip (3) is used to support the EPS insulation board and the corresponding fixing components, playing a supporting role, improving the connection strength between the foundation wall structure and the EPS insulation board, and reducing the risk of insulation layer falling off. At the same time, multiple slots (9) set on the lower surface of the strip (7) are used to adjust the length of the strip (7) to adapt to insulation systems of different thicknesses, thus improving the applicability.

[0015] Specific implementation method two: This implementation method differs from specific implementation method one in that the multiple blocks (1) are connected by adhesive mortar (6).

[0016] Specific implementation method three: This implementation method differs from specific implementation method one or two in that the block (1) is a small hollow concrete block.

[0017] Specific implementation method four: This implementation method differs from one of the specific implementation methods one to three in that the block (1) is provided with two vertical cavities.

[0018] Specific implementation method five: This implementation method differs from one of the specific implementation methods one to four in that: the lower surface of the cover plate (4) is provided with a boss (10), and the boss (10) is embedded inside the annular retaining edge (2).

[0019] Specific Implementation Method Six: This implementation method differs from Specific Implementation Methods One to Five in that the notch (5) is square.

[0020] Specific implementation method seven: This implementation method differs from one of the specific implementation methods one to six in that the support strip (3) is made of reinforced concrete.

[0021] Example 1

[0022] Combination Figures 1-4 This embodiment applies to the foundation wall structure of the EPS board thin-plastered exterior wall insulation system, which is constructed from multiple blocks (1). The blocks (1) are small hollow concrete blocks with two vertical cavities. Multiple blocks (1) are connected by adhesive mortar (6). The blocks (1) are hollow blocks, and each cavity of the blocks (1) has a horizontal annular retaining edge (2) in the middle. Each cavity of the blocks (1) has a cover plate (4), which is located on the upper surface of the annular retaining edge (2). The lower surface of the cover plate (4) has a boss (10). The boss (10) is embedded inside the annular retaining edge (2); the lower end face of the outer wall of the block (1) is provided with a notch (5), which is square; the support strip (3) is composed of a strip (7) and a stop block (8), the stop block (8) is fixed to one end of the strip (7), and the lower surface of the strip (7) is provided with multiple slots (9); the support strip (3) is set between the upper and lower blocks (1), the strip (7) in the support strip (3) is set in the notch (5), the slots (9) are locked on the side wall of the lower block (1), and the stop block (8) is set in the cavity of the block (1). In order to solve the problem that existing building walls are prone to chimney effect and insulation layer is prone to fall off during fire, this embodiment proposes a basic wall structure suitable for EPS board thin plaster external wall insulation system. The blocks (1) in the basic wall structure are hollow blocks. By setting a horizontal annular flange (2) and a cover plate (4) in the middle of each cavity of the block (1), the cover plate (4) can isolate the airflow in the vertical direction, avoid the chimney effect after the vertical connection of the building blocks, and improve the fire resistance of the external wall insulation system. The support strip (3) is used to support the EPS insulation board and the corresponding fixing components, and plays a supporting role, which improves the connection strength between the basic wall structure and the EPS insulation board and reduces the risk of insulation layer falling off. At the same time, the multiple slots (9) set on the lower surface of the strip (7) are used to adjust the length of the strip (7) to adapt to insulation systems of different thicknesses, which improves the applicability.

Claims

1. A basic wall structure suitable for EPS board thin-plastered exterior wall insulation systems, characterized in that: The basic wall structure applicable to the EPS board thin plastering external wall insulation system is constructed from multiple blocks (1); the blocks (1) are hollow blocks, and a horizontal annular flange (2) is provided in the middle of each cavity of the blocks (1). A cover plate (4) is provided in each cavity of the blocks (1), and the cover plate (4) is provided on the upper surface of the annular flange (2); a notch (5) is provided on the lower end face of the outer wall of the blocks (1); the support strip (3) is composed of a strip (7) and a stop block (8). The stop block (8) is fixed to one end of the strip (7), and multiple slots (9) are provided on the lower surface of the strip (7); the support strip (3) is provided between the upper and lower blocks (1), the middle strip (7) of the support strip (3) is provided in the notch (5), the slots (9) are attached to the side wall of the lower block (1), and the stop block (8) is provided in the cavity of the blocks (1).

2. The foundation wall structure applicable to EPS board thin-plastered external wall insulation system according to claim 1, characterized in that: The plurality of blocks (1) are connected by adhesive mortar (6).

3. The foundation wall structure applicable to EPS board thin-plastered external wall insulation system according to claim 1, characterized in that: The block (1) is a small hollow concrete block.

4. The foundation wall structure applicable to EPS board thin-plastered external wall insulation system according to claim 1, characterized in that: The block (1) has two vertical cavities.

5. The foundation wall structure applicable to EPS board thin-plastered external wall insulation system according to claim 1, characterized in that: The lower surface of the cover plate (4) is provided with a boss (10), which is embedded inside the annular retaining edge (2).

6. The foundation wall structure applicable to EPS board thin-plastered external wall insulation system according to claim 1, characterized in that: The notch (5) is square.

7. The foundation wall structure applicable to EPS board thin-plastered external wall insulation system according to claim 1, characterized in that: The support strip (3) is made of reinforced concrete.

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