Building outer wall sound absorption and insulation structure

Abstract

The utility model discloses a building outer wall sound absorption and insulation and heat preservation structure, including wall and outer wall heat preservation mechanism, and the wall is built on the floor, and the wall is constituted by multilayer block layer, and the block layer is built by a plurality of special-shaped blocks, and the special-shaped block is constituted by the intermediate body, the right upper protruding block and the left lower protruding block, and the right upper protruding block and the left lower protruding block are fixed at the both ends of the intermediate body respectively, and the left side of the right upper protruding block and the right side of the left lower protruding block form the right upper recess and the left lower recess respectively, and when building, the right upper protruding block and the left lower protruding block are inserted into the left lower recess and the right upper recess of adjacent special-shaped blocks respectively. The utility model discloses a building outer wall sound absorption and insulation and heat preservation structure, realizes the " seamless " connection of special-shaped block in horizontal direction in the same block layer, and compared with the connection of adjacent blocks in horizontal direction by cement mortar, the sound insulation and heat preservation effect is better, and it is favorable to provide the quiet and temperature suitable environment for the building indoor.

Description

Technical Field

[0001] This utility model relates to a building exterior wall structure, and more specifically, to a building exterior wall sound absorption and heat insulation structure. Background Technology

[0002] With the continuous increase in urbanization rates, multi-story and high-rise buildings are currently the main architectural forms for residential buildings. Modern building construction not only needs to meet basic living requirements but also strives to provide a comfortable living environment. Providing a quiet living and resting environment has gradually become one of the important requirements for buildings, necessitating good sound insulation. Especially for residential buildings near main traffic arteries, poor sound insulation allows noise generated by vehicles driving on the road to enter the interior, negatively impacting living comfort.

[0003] Most existing buildings are frame structures. After the frame is poured, bricks are used to form the exterior and interior walls. To avoid the consumption of natural resources by sintered bricks, the country is currently strongly advocating the use of autoclaved aerated concrete (AAC) blocks for wall construction. Since AAC blocks are laid in single rows, the joints between adjacent blocks are connected with cement mortar. Because the noise reduction coefficient (NRC coefficient) and thermal conductivity of the cement mortar at the joints differ from those of the AAC block material, this is a significant factor reducing the sound insulation and thermal insulation performance of the building walls.

[0004] However, autoclaved aerated concrete (AAC) blocks also have certain drawbacks. Their high water absorption rate means that when the exterior wall finish fails, water vapor seeps in, causing the blocks to pulverize more rapidly under freeze-thaw cycles, leading to wall detachment and affecting thermal insulation performance. Furthermore, AAC blocks have a high dry density, fewer and smaller pores, and a larger proportion of solid material in the skeleton, creating more "bridges" for heat transfer and resulting in poor thermal insulation. Additionally, AAC blocks have a low NRC coefficient, resulting in extremely low noise absorption. Therefore, this invention proposes a building exterior wall structure with good sound insulation and thermal insulation performance. Summary of the Invention

[0005] In order to overcome the shortcomings of the above-mentioned technical problems, this utility model provides a sound-absorbing and heat-insulating structure for building exterior walls.

[0006] This utility model relates to a sound-absorbing, heat-insulating, and sound-absorbing structure for building exterior walls, comprising a wall body and an exterior wall insulation mechanism disposed on the outside of the wall body. The wall body is built on a floor slab and consists of multiple layers of blocks distributed from bottom to top. Each block layer is constructed from several irregularly shaped blocks, and adjacent block layers are bonded together by a mortar layer. The irregularly shaped blocks are characterized by: each block consisting of a central body, an upper right protrusion, and a lower left protrusion, all of which are cubic in shape. The upper right and lower left protrusions are fixed to both ends of the central body, and the left side of the upper right protrusion and the right side of the lower left protrusion form an upper right groove and a lower left groove, respectively. During construction, the upper right and lower left protrusions are inserted into the lower left and upper right grooves of adjacent irregularly shaped blocks, respectively.

[0007] The present invention relates to a sound-absorbing and heat-insulating structure for building exterior walls. The exterior wall insulation mechanism consists of a leveling layer, an adhesive layer, an insulation board, an alkali-resistant mesh, and a finishing layer, arranged sequentially from the inside out. The leveling layer is formed by cement mortar coated on the outer surface of the wall. The insulation board is fixed to the leveling layer by the adhesive layer. The inner side of the alkali-resistant mesh is fixed to the insulation board by the inner plastering mortar layer, the outer plastering mortar layer is fixed to the outer side of the alkali-resistant mesh, and the finishing layer is fixed to the outer plastering mortar layer.

[0008] The present invention relates to a sound-absorbing and heat-insulating structure for exterior building walls. The heat-insulating board is made of EPS board and includes anchor nails. The anchor nails pass through the heat-insulating board, the adhesive layer and the leveling layer in sequence and are inserted into the wall. A circular piece is fixed to the outer end of the anchor nail.

[0009] The building exterior wall sound absorption and heat insulation structure of this utility model has a planar bonding part at the upper and lower parts of the inner surface of the insulation board, and a honeycomb cavity part in the middle of the inner surface of the insulation board. The area of ​​the planar bonding part is not less than half of the inner surface area of ​​the insulation board.

[0010] The building exterior wall sound absorption and heat insulation structure of this utility model uses fly ash ceramsite blocks as the irregular-shaped blocks.

[0011] The building exterior wall sound absorption and heat insulation structure of this utility model, the special-shaped block is formed by cutting long strip extruded block blanks, and the parts on the extruded block blanks used to form the upper right groove and the lower left groove are supported by support strips.

[0012] The beneficial effects of this utility model are as follows: The building exterior wall sound absorption, insulation and heat preservation structure of this utility model is provided with a wall body and an exterior wall insulation mechanism. The wall body is composed of multiple layers of blocks, and the upper and lower blocks are bonded together by a layer of mortar. The blocks are composed of irregularly shaped blocks. The blocks are composed of a middle body, an upper right protrusion and a lower left protrusion. The upper right protrusion and the lower left protrusion form upper right groove and lower left groove on the outside of the upper right groove and the lower left groove, respectively. During construction, the upper right protrusion and the lower left protrusion are inserted into the lower left groove and the upper right groove of the adjacent irregularly shaped blocks, respectively. In this way, the irregularly shaped blocks are connected in the horizontal direction in the same block layer. Compared with the existing method of connecting adjacent blocks in the horizontal direction with cement mortar, its sound insulation and heat preservation effect is better, which is conducive to providing a quiet and temperature-appropriate environment for the building interior.

[0013] Furthermore, the external wall insulation mechanism consists of a leveling layer, an adhesive layer, an insulation board, an alkali-resistant mesh, and a finishing layer. The inner surface of the insulation board is provided with a flat adhesive part and a honeycomb cavity part. The flat adhesive part on the insulation board is used to apply the adhesive that forms the adhesive layer, and the honeycomb cavity part can absorb external noise to reduce the noise transmission to the interior, thereby increasing the sound insulation performance of the building's external wall.

[0014] Furthermore, the irregularly shaped blocks are made of fly ash ceramsite blocks. Fly ash ceramsite blocks are formed using fly ash ceramsite as the main raw material, which not only realizes the utilization of coal waste, but also has good thermal insulation performance and excellent sound absorption performance, further increasing the sound insulation and thermal insulation performance of the building. Attached Figure Description

[0015] Figure 1 This is a front view of the sound-absorbing, heat-insulating, and sound-absorbing structure for the exterior wall of this utility model; Figure 2 This is a top view of the sound-absorbing, heat-insulating, and sound-absorbing structure for the exterior wall of this utility model; Figure 3 This is a perspective view of the irregularly shaped block in this utility model; Figure 4 This is a schematic diagram of the extruded block blank used to form irregularly shaped blocks in this utility model; Figure 5 This is a schematic diagram of the structure of the insulation board in this utility model.

[0016] In the diagram: 1. Floor slab, 2. Irregularly shaped blocks, 3. Mortar layer, 4. Insulation board, 5. Leveling layer, 6. Bonding layer, 7. Alkali-resistant mesh, 8. Finishing layer, 9. Inner plastering mortar layer, 10. Outer plastering mortar layer, 11. Upper right protrusion, 12. Lower left protrusion, 13. Upper right groove, 14. Lower left groove, 15. Extruded block blank, 16. Cutting line, 17. Support strip, 18. Flat bonding part, 19. Honeycomb cavity part, 20. Wall, 21. Anchor nail, 22. Intermediate body. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] like Figure 1 and Figure 2 The diagram shows the front and top views of the building exterior wall sound absorption and thermal insulation structure of this utility model. The structure consists of a wall 20 and an exterior wall insulation mechanism. The wall 20 is built on a floor slab 1 and is composed of multiple layers of blocks built from bottom to top on the floor slab 1. Each block layer is composed of several irregularly shaped blocks 2 joined together. A mortar layer 3 is provided between adjacent block layers to connect them. The exterior wall insulation mechanism consists of a leveling layer 5, an adhesive layer 6, an insulation board 4, an alkali-resistant mesh fabric 7, and a finishing layer 8, arranged sequentially from the inside out.

[0019] In the external wall insulation structure, the leveling layer 5 is composed of cement mortar, which is applied to the outer surface of the wall 20 to level the outer surface of the wall 20. The insulation layer 4 is made of EPS board and is fixed to the leveling layer 5 by an adhesive layer 6, which is formed by adhesive. The inner and outer sides of the alkali-resistant mesh 7 are respectively provided with an inner plastering mortar layer 9 and an outer plastering mortar layer 10. The inner plastering mortar layer 9 and the outer plastering mortar layer 10 are coated on the inner and outer sides of the alkali-resistant mesh 7, respectively, which not only fixes the alkali-resistant mesh 7 to the insulation board 4, but also protects the alkali-resistant mesh 7.

[0020] In order to securely fix the insulation board 4 to the wall 20, an anchor nail 21 is also provided. The anchor nail 21 passes through the insulation board 4, the adhesive layer 6 and the leveling layer 5 from the outside to the inside, and is then inserted into the wall 20. The outer end of the anchor nail 21 is provided with a round plate, which is attached to the outer surface of the insulation board 4.

[0021] like Figure 3 The diagram shows a perspective view of the irregularly shaped block 2 of this invention. The irregularly shaped block 2 is composed of a central body 22, an upper right protrusion 11, and a lower left protrusion 12. All three are cuboid in shape and are integrally formed by an extrusion process. The upper right protrusion 11 and the lower left protrusion 12 are fixed to both ends of the central body 22. The left side of the upper right protrusion 11 is a right upper groove 13, and the right side of the lower left protrusion 12 is a left lower groove 14. During construction, for adjacent irregularly shaped blocks 2 in the same block layer, the upper right protrusion 11 is inserted into the lower left groove 14 of the adjacent irregularly shaped block 2, and the lower left protrusion 12 is inserted into the upper right groove 13 of the adjacent irregularly shaped block 2.

[0022] Figure 3In the middle, the upper right protrusion 11, the lower left protrusion 12, the upper right groove 13, and the lower right groove 14 are all half the width of the middle body 22. In this way, when the upper right protrusion 11 is inserted into the lower left groove 14 of the adjacent irregular block 2, and the lower left protrusion 12 is inserted into the upper right groove 13 of the adjacent irregular block 2, the splicing part is consistent with the width of the middle body 22.

[0023] As can be seen, since the upper right protrusion 11 and the lower left protrusion 12 are respectively inserted into the lower left groove 14 and the upper right groove 13 of the adjacent irregular block 2, the irregular block 2 in the same block layer is connected in the horizontal direction. This seamless connection has better sound insulation and heat preservation effect, which is conducive to providing a quiet and temperature-appropriate environment for the building interior.

[0024] like Figure 4 The diagram shows the structure of the extruded block blank used to form irregularly shaped blocks in this invention. The extruded block blank 15 used to form the irregularly shaped blocks 2 is generally elongated. During extrusion, it forms not only the intermediate body 22, but also an upper right protrusion 11 and a lower left protrusion 12, as well as an upper right groove 13 and a lower left groove 14. A support strip 17 is used to support the downward-facing upper right groove 13 or lower left groove 14. The support strip 17 can be removed after curing. The elongated extruded block blank 15 is cut along the cutting line 16 to form the irregularly shaped block 2 blank.

[0025] To enhance sound insulation performance, the inner surface of the insulation board 4, formed using EPS board, is not perfectly flat, such as... Figure 5 The diagram shows the structure of the insulation board in this invention. The upper and lower parts of the inner surface of the insulation board 4 are planar bonding portions 18, and the middle part is a honeycomb cavity portion 19. The planar bonding portions 18 on the insulation board 4 are used for the adhesive shown in the diagram. The honeycomb cavity portion 19 can absorb external noise to reduce noise transmission to the interior, thereby increasing the sound insulation performance of the building's exterior walls.

Claims

1. A sound-absorbing and heat-insulating structure for an exterior wall of a building, comprising a wall (20) and an exterior wall insulation mechanism disposed on the outside of the wall, the wall being constructed on a floor slab (1), the wall being composed of multiple layers of blocks distributed from bottom to top, each block layer being constructed of several irregularly shaped blocks (2), and adjacent blocks being bonded together by a mortar layer (3); characterized in that: The irregular block is composed of an intermediate body (22), an upper right protrusion (11), and a lower left protrusion (12). The intermediate body, the upper right protrusion, and the lower left protrusion are all cubic in shape. The upper right protrusion and the lower left protrusion are fixed at both ends of the intermediate body. The left side of the upper right protrusion and the right side of the lower left protrusion form an upper right groove (13) and a lower left groove (14), respectively. During construction, the upper right protrusion and the lower left protrusion are inserted into the lower left groove and the upper right groove of the adjacent irregular block, respectively.

2. The sound-absorbing, heat-insulating, and thermal-insulating structure for building exterior walls according to claim 1, characterized in that: The external wall insulation mechanism consists of a leveling layer (5), an adhesive layer (6), an insulation board (4), an alkali-resistant mesh (7), and a finishing layer (8) arranged sequentially from the inside to the outside. The leveling layer is formed by cement mortar coated on the outer surface of the wall (20). The insulation board is fixed to the leveling layer by the adhesive layer. The inner side of the alkali-resistant mesh is fixed to the insulation board by the inner plastering mortar layer (9). The outer plastering mortar layer is fixed to the outer side of the alkali-resistant mesh. The finishing layer is fixed to the outer plastering mortar layer.

3. The sound-absorbing, heat-insulating, and thermal-insulating structure for building exterior walls according to claim 2, characterized in that: The insulation board (4) is made of EPS board and includes anchor nails (21). The anchor nails pass through the insulation board (4), the adhesive layer (6) and the leveling layer (5) in sequence and are inserted into the wall (20). The outer end of the anchor nail is fixed with a round piece.

4. The sound-absorbing, heat-insulating, and thermal-insulating structure for building exterior walls according to claim 2 or 3, characterized in that: The upper and lower parts of the inner surface of the insulation board (4) are planar bonding parts (18), and the middle part of the inner surface of the insulation board is a honeycomb cavity part (19). The area of ​​the planar bonding part is not less than half of the inner surface area of ​​the insulation board.

5. The sound-absorbing, heat-insulating, and thermal-insulating structure for building exterior walls according to claim 1 or 2, characterized in that: The irregular block (2) is a fly ash ceramsite block.

6. The sound-absorbing, heat-insulating, and thermal-insulating structure for building exterior walls according to claim 1 or 2, characterized in that: The irregular block (2) is formed by cutting a long strip of extruded block blank (15). The parts of the extruded block blank used to form the upper right groove (13) and the lower left groove (14) are supported by support strips (17).

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