Highly sound-insulating silent aluminum plate

Abstract

This utility model belongs to the field of building decoration materials, specifically a high-efficiency sound-insulating aluminum plate, including an outer aluminum plate assembly, an inner aluminum plate assembly, and a honeycomb core layer assembly. The honeycomb core layer assembly is composed of multiple detachable snap-fit ​​honeycomb blocks. The modular quick-connect structure of the honeycomb core layer assembly consists of horizontal hooks and vertical base plates through snap-fit ​​buckles. The hooks at both ends are embedded in the slots of adjacent honeycomb blocks to form a mechanical lock. A 2mm thick EPDM rubber sealing gasket is embedded in the groove between the base plate and the side of the honeycomb block. When snapped, the sealing gasket is deformed by pressure, filling the 0.5-1mm splicing gap and blocking sound wave leakage. The honeycomb blocks are bonded to the outer and inner aluminum plates with dotted adhesives spaced 50-80mm apart, which ensures structural strength and avoids the difficulty of replacement caused by full-surface adhesive bonding, without waiting for the adhesive to cure.

Description

Technical Field

[0001] This utility model relates to the field of building decoration materials technology, specifically a high-efficiency sound-insulating silent aluminum plate. Background Technology

[0002] Aluminum sheet refers to rectangular sheet material rolled from aluminum ingots. It is commonly used in building decoration, electrical processing and other fields. It has advantages such as being lightweight and corrosion resistant. This sheet is a silent aluminum sheet, which is made of aluminum sheet and sound insulation material. It is used to isolate noise and reduce the impact of noise on people.

[0003] Currently, most sound insulation materials on the market use aluminum honeycomb panels, which, while having some sound insulation performance, have the following shortcomings:

[0004] 1. Low installation efficiency: On-site application of adhesive and waiting for curing result in a long installation time;

[0005] 2. High maintenance costs: partial damage requires complete replacement, and aging of the adhesive layer leads to structural failure;

[0006] 3. Poor low-frequency sound insulation: Traditional honeycomb cores have limited ability to absorb low-frequency sound waves, making it difficult to meet the needs of modern buildings for full-frequency sound insulation. Utility Model Content

[0007] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, this utility model proposes a high-efficiency sound-insulating silent aluminum plate.

[0008] The technical solution adopted by this utility model to solve its technical problem is as follows: The high-efficiency sound-insulating aluminum plate of this utility model includes an outer aluminum plate assembly, an inner aluminum plate assembly, and a honeycomb core layer assembly. The honeycomb core layer assembly is composed of multiple detachable snap-fit ​​honeycomb blocks. Each honeycomb block is a cavity structure with an opening at the top and a hollow interior. A straight-hole resonant column is installed through the cavity. The inner aluminum plate assembly and the outer aluminum plate assembly are respectively attached and fixed to the upper and lower surfaces of the honeycomb core layer assembly. Inflatable rubber airbags are embedded in the edges of the outer aluminum plate assembly and the inner aluminum plate assembly. The inflatable rubber airbags are connected to an external air pump through an air nozzle.

[0009] Preferably, the diameter of the straight-hole resonant column is 3-5 mm, the depth is 5-8 mm, and the ratio of the diameter of the straight-hole resonant column to the pore size of the honeycomb unit is 1:3-1:4.

[0010] Preferably, the edge of the honeycomb block is provided with a first slot and a second slot, and the inside of the first slot and the second slot are engaged with a snap fastener. The snap fastener includes a hook extending horizontally at both ends and a base plate vertically connected to the side of the honeycomb block. The straight hole resonant column is disposed in the middle of the inner cavity of the honeycomb cavity, and each straight hole resonant column is a cavity structure with openings at the top and bottom and a hollow interior.

[0011] Preferably, adjacent honeycomb blocks are engaged with the first and second slots in the corresponding honeycomb blocks via the hook portion, and a sealing gasket is embedded in the groove formed between the substrate and the side of the honeycomb block.

[0012] Preferably, one end of the inflatable rubber airbag is embedded in a first mounting groove on the edge of the outer aluminum plate assembly, the first mounting groove having a depth of 4-5 mm and a width of 12-15 mm, and the airbag expanding by 2-3 mm after inflation. The other end of the inflatable rubber airbag is embedded in a second mounting groove on the edge of the outer aluminum plate assembly, the second mounting groove having a depth of 4-5 mm and a width of 12-15 mm.

[0013] Preferably, the inner aluminum plate assembly includes an aluminum plate body, a second mounting groove is provided at the front end of the aluminum plate body, a limiting seat is fixedly connected to the outer edge of the second mounting groove, and a second dotted adhesive layer is provided in the middle of the aluminum plate body.

[0014] Preferably, the honeycomb block is bonded to the outer aluminum plate assembly and the inner aluminum plate assembly through a first dotted adhesive layer and a second dotted adhesive layer that are spaced apart. The spacing between the adhesive layers is 50-80 mm, and the diameter of a single adhesive dot is 10-15 mm.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. This utility model provides a high-efficiency sound-insulating aluminum panel. Currently, in the installation of sound insulation materials, most honeycomb panels used are integral honeycomb cores, which rely on adhesives for fixation. This requires on-site application of adhesive and waiting for curing. At the same time, if there is local damage, the entire panel needs to be replaced. The aging of the adhesive layer leads to structural failure. However, the modular quick-connect structure of the honeycomb core layer component of this application is composed of horizontal hooks and vertical base plates through snap-fit ​​buckles. The hooks at both ends are embedded in the slots of adjacent honeycomb blocks to form a mechanical lock. The groove between the base plate and the side of the honeycomb block is inlaid with EPDM rubber sealing gaskets with a thickness of 2mm. When snapped, the sealing gaskets are deformed by pressure and fill the splicing gap of 0.5-1mm to block sound wave leakage. The honeycomb blocks are bonded to the outer aluminum plate and the inner aluminum plate with dot-shaped adhesive (acrylic adhesive) at intervals of 50-80mm. This ensures structural strength and avoids the difficulty of replacement caused by full-surface adhesive bonding. There is no need to wait for the adhesive to cure. It is suitable for rapid construction of prefabricated buildings. When the adhesive dots are damaged, only local repair is required.

[0017] The straight-hole resonant column is located at the bottom center of the honeycomb unit and is connected to the honeycomb cavity to form a composite structure of "honeycomb main cavity + resonant secondary cavity". After the sound wave enters through the micro-hole of the outer aluminum plate, it is first scattered in the honeycomb cavity and then resonant absorption is triggered through the straight hole. The diameter of the straight hole is designed in a ratio of 1:3 to 1:4 with the honeycomb aperture (e.g., when the honeycomb aperture is 12mm, the diameter of the straight hole is 4mm) to ensure that the volume of the resonant cavity matches the volume of the honeycomb unit and maximizes the low-frequency absorption efficiency.

[0018] 2. This utility model discloses a high-efficiency sound-insulating aluminum plate. Currently, aluminum plates use static sealing strips (such as EPDM rubber strips) on the edges, which have poor gap compensation capabilities. Gaps larger than 2mm caused by uneven walls cannot be filled, increasing sound leakage by 10-15dB. In contrast, the aluminum plate of this application has installation grooves with a depth of 8-10mm and a width of 12-15mm on the edges. The inflatable rubber airbag is made of neoprene rubber, with a thickness of 6mm when uninflated and an expansion to 8-9mm after inflation, an expansion of 2-3mm, completely filling installation gaps within 2.5mm. The compensation rate for irregular gaps of 2-3mm reaches 100%, and the sound insulation at the joint is basically the same as that of the plate surface. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] Figure 1 This is a schematic diagram of the overall structure of the device in this utility model;

[0021] Figure 2 This is a schematic diagram of the pre-injected thermally conductive adhesive block structure in this utility model;

[0022] Figure 3 This is a schematic diagram of the locking mechanism in this utility model;

[0023] Figure 4 This is a schematic diagram of the replaceable component structure in this utility model.

[0024] In the figure: 1. Outer aluminum plate assembly; 11. Air nozzle; 12. Inflatable rubber airbag; 13. First dotted adhesive layer; 14. First mounting groove; 2. Honeycomb core layer assembly; 21. Honeycomb block; 22. First slot; 23. Second slot; 24. Snap fastener; 25. Sealing gasket; 26. Honeycomb chamber; 27. Straight hole resonant column; 3. Inner aluminum plate assembly; 31. Second mounting groove; 32. Aluminum plate body; 33. Limiting seat; 34. Second dotted adhesive layer. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] like Figure 1 , Figure 3 As shown in the figure, a high-efficiency sound-insulating aluminum plate according to an embodiment of the present invention includes an outer aluminum plate assembly 1, an inner aluminum plate assembly 3, and a honeycomb core layer assembly 2. The honeycomb core layer assembly 2 is characterized by being composed of multiple detachable snap-fit ​​honeycomb blocks 21, each of which is a cavity structure with an opening at the top and a hollow interior. A straight-hole resonant column 27 is disposed through this cavity. The inner aluminum plate assembly 3 and the outer aluminum plate assembly 1 are respectively attached and fixed to the upper and lower surfaces of the honeycomb core layer assembly 2. Inflatable rubber airbags 12 are embedded at the edges of the outer aluminum plate assembly 1 and the inner aluminum plate assembly 3. The inflatable rubber airbags 12 are connected to an external air pump via air nozzles 11. The diameter of the straight-hole resonant column 27 is 3-5 mm, and the cavity depth is... The diameter is 5-8mm, and the ratio of the diameter of the straight hole resonant column 27 to the diameter of the honeycomb unit is 1:3-1:4. The edge of the honeycomb block 21 is provided with a first slot 22 and a second slot 23. The first slot 22 and the second slot 23 are engaged with the snap fastener 24. The snap fastener 24 includes hooks extending horizontally at both ends and a base plate vertically connected to the side of the honeycomb block 21. The straight hole resonant column 27 is located in the middle of the inner cavity of the honeycomb chamber 26. Each straight hole resonant column 27 is a cavity structure with openings at the top and bottom and hollow inside. Adjacent honeycomb blocks 21 are engaged with the first slot 22 and the second slot 23 in the corresponding honeycomb block 21 through the hooks. A sealing gasket 25 is embedded in the groove formed between the base plate and the side of the honeycomb block 21.

[0027] Specifically, during the assembly process, the upper and lower ends of the honeycomb block 21 are provided with first slots 22, and the left and right ends of the honeycomb block 21 are provided with second slots 23. During the assembly of adjacent honeycomb blocks 21, the two L-shaped hooks of the snap fastener 24 are snapped into the slots to make the generated honeycomb blocks 21 uniform, and to make it easy to replace when the snap fastener 24 is damaged.

[0028] Specifically, in the process of installing sound insulation materials, the honeycomb panels used are mostly integral honeycomb cores, which rely on adhesives for fixation. This requires on-site application of adhesive and waiting for curing. At the same time, if there is local damage, the entire structure needs to be replaced. The aging of the adhesive layer leads to structural failure. However, the modular quick connection structure of the honeycomb core layer component 2 of this application is composed of horizontal hooks and vertical base plates through snap-fit ​​buckles 24. The hooks at both ends are embedded in the slots of adjacent honeycomb blocks 21 to form a mechanical lock. The groove between the base plate and the side of the honeycomb block 21 is inlaid with EPDM rubber sealing gaskets 25 with a thickness of 2mm. When snapped, the sealing gaskets 25 are deformed by pressure, filling the splicing gap of 0.5-1mm and blocking sound wave leakage. The honeycomb blocks 21 are bonded to the outer aluminum plate and the inner aluminum plate with dotted acrylic adhesive with a spacing of 50-80mm. This ensures structural strength and avoids the difficulty of replacement caused by full-surface adhesive bonding. There is no need to wait for the adhesive to cure, which is suitable for rapid construction of prefabricated buildings. When the adhesive dots are damaged, only local repair is required.

[0029] Specifically, the straight-hole resonant column 27 is located at the bottom center of the honeycomb unit and is connected to the honeycomb cavity 26 to form a composite structure of "honeycomb main cavity + resonant secondary cavity". After the sound wave enters through the micro-hole of the outer aluminum plate, it is first scattered in the honeycomb cavity and then resonantly absorbed through the straight hole. The diameter of the straight hole is designed in a ratio of 1:3 to 1:4 with the honeycomb aperture. For example, when the honeycomb aperture is 12mm, the diameter of the straight hole is 4mm to ensure that the volume of the resonant cavity matches the volume of the honeycomb unit and maximizes the low-frequency absorption efficiency.

[0030] like Figures 1-4 As shown, one end of the inflatable rubber airbag 12 is embedded in the first mounting groove 14 on the edge of the outer aluminum plate assembly 1. The first mounting groove 14 has a depth of 4-5 mm and a width of 12-15 mm. The expansion amount of the airbag 4 after inflation is 2-3 mm. The other end of the inflatable rubber airbag 12 is embedded in the second mounting groove 31 on the edge of the outer aluminum plate assembly 1. The second mounting groove 31 has a depth of 4-5 mm and a width of 12-15 mm. The inner aluminum plate assembly 3 includes an aluminum plate body. 32. A second mounting groove 31 is provided at the front end of the aluminum plate body 32. A limiting seat 33 is fixedly connected to the outer edge of the second mounting groove 31. A second dotted adhesive layer 34 is provided in the middle of the aluminum plate body 32. The honeycomb block 21 is bonded to the outer aluminum plate assembly 1 and the inner aluminum plate assembly 3 through the first dotted adhesive layer 13 and the second dotted adhesive layer 34 distributed at intervals. The spacing of the adhesive layers 5 is 50-80mm, and the diameter of a single adhesive dot is 10-15mm.

[0031] By opening a first mounting groove 14 with a depth of 4-5mm and a second mounting groove 31 with a width of 12-15mm on the edge of the aluminum plate, the inflatable rubber airbag 12 is made of neoprene rubber. When not inflated, it is 6mm thick and expands to 8-9mm after inflation, with an expansion amount of 2-3mm. It completely fills the installation gap within 2.5mm and has a 100% compensation rate for irregular gaps of 2-3mm. The sound insulation at the joint is basically the same as that of the plate surface.

[0032] Working principle: In the process of installing sound insulation materials, the honeycomb panels used are mostly integral honeycomb cores, which rely on adhesives for fixation. On-site application of adhesive and waiting for curing are required. At the same time, local damage requires replacement of the whole structure. The aging of the adhesive layer leads to structural failure. However, the modular quick connection structure of the honeycomb core layer component 2 of this application is composed of horizontal hooks and vertical base plates through snap-fit ​​buckles 24. The hooks at both ends are embedded in the slots of adjacent honeycomb blocks 21 to form a mechanical lock. The groove between the base plate and the side of the honeycomb block 21 is inlaid with EPDM rubber sealing gaskets 25 with a thickness of 2mm. When snapped, the sealing gaskets 25 are deformed by pressure, filling the splicing gap of 0.5-1mm and blocking sound wave leakage. The honeycomb blocks 21 are bonded to the outer aluminum plate and the inner aluminum plate with dot-shaped adhesive (acrylic glue) at intervals of 50-80mm. This ensures structural strength and avoids the difficulty of replacement caused by full-surface adhesive bonding. There is no need to wait for the adhesive to cure. It is suitable for rapid construction of prefabricated buildings. When the adhesive dots are damaged, only local repair is required.

[0033] The straight-hole resonant column 27 is located at the bottom center of the honeycomb unit and is connected to the honeycomb cavity 26 to form a composite structure of "honeycomb main cavity + resonant secondary cavity". After the sound wave enters through the micro-hole of the outer aluminum plate, it is first scattered in the honeycomb cavity and then resonant absorption is triggered through the straight hole. The diameter of the straight hole is designed in a ratio of 1:3 to 1:4 with the honeycomb aperture (e.g., when the honeycomb aperture is 12mm, the diameter of the straight hole is 4mm) to ensure that the volume of the resonant cavity matches the volume of the honeycomb unit and maximizes the low-frequency absorption efficiency.

[0034] Furthermore, by opening a first mounting groove 14 with a depth of 4-5mm and a width of 12-15mm on the edge of the aluminum plate, and a second mounting groove 31, the inflatable rubber airbag 12 is made of neoprene rubber. When not inflated, it is 6mm thick and expands to 8-9mm after inflation, with an expansion amount of 2-3mm, completely filling the installation gap within 2.5mm. The compensation rate for irregular gaps of 2-3mm reaches 100%, and the sound insulation at the joint is basically the same as that of the plate surface.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency sound-insulating aluminum plate, comprising an outer aluminum plate assembly (1), an inner aluminum plate assembly (3), and a honeycomb core layer assembly (2), characterized in that: The honeycomb core layer assembly (2) is composed of multiple detachable snap-fit ​​honeycomb blocks (21). Each honeycomb block (21) is a cavity structure with an opening at the top and a hollow interior. A straight-hole resonant column (27) is installed through the cavity. The inner aluminum plate assembly (3) and the outer aluminum plate assembly (1) are respectively attached and fixed to the upper and lower surfaces of the honeycomb core layer assembly (2). The outer aluminum plate assembly (1) and the inner aluminum plate assembly (3) are embedded with inflatable rubber airbags (12). The inflatable rubber airbags (12) are connected to an external air pump through an air nozzle (11).

2. The high-efficiency sound-insulating aluminum plate according to claim 1, characterized in that: The diameter of the straight hole resonant column (27) is 3-5 mm and the depth is 5-8 mm. The ratio of the diameter of the straight hole resonant column (27) to the cavity of the honeycomb block (21) is 1:3-1:

4.

3. The high-efficiency sound-insulating aluminum plate according to claim 1, characterized in that: The edge of the honeycomb block (21) is provided with a first slot (22) and a second slot (23). The first slot (22) and the second slot (23) are both engaged with the snap fastener (24). The snap fastener (24) includes a hook extending horizontally at both ends and a base plate vertically connected to the side of the honeycomb block (21). The straight hole resonant column (27) is located in the middle of the inner cavity of the honeycomb chamber (26). Each straight hole resonant column (27) is a cavity structure with openings at the top and bottom and a hollow interior.

4. The high-efficiency sound-insulating aluminum plate according to claim 3, characterized in that: Adjacent honeycomb blocks (21) are engaged with the first slot (22) and the second slot (23) in the corresponding honeycomb block (21) through the hook portion, and a sealing gasket (25) is embedded in the groove formed between the substrate and the side of the honeycomb block (21).

5. The high-efficiency sound-insulating aluminum plate according to claim 1, characterized in that: One end of the inflatable rubber airbag (12) is embedded in the first mounting groove (14) on the edge of the outer aluminum plate assembly (1). The first mounting groove (14) has a depth of 4-5 mm and a width of 12-15 mm. The expansion amount of the airbag (4) after inflation is 2-3 mm. The other end of the inflatable rubber airbag (12) is embedded in the second mounting groove (31) on the edge of the outer aluminum plate assembly (1). The second mounting groove (31) has a depth of 4-5 mm and a width of 12-15 mm.

6. The high-efficiency sound-insulating silent aluminum plate according to claim 1, characterized in that: The inner aluminum plate assembly (3) includes an aluminum plate body (32), a second mounting groove (31) is provided at the front end of the aluminum plate body (32), a limiting seat (33) is fixedly connected to the outer edge of the second mounting groove (31), and a second dotted adhesive layer (34) is provided in the middle of the aluminum plate body (32).

7. The high-efficiency sound-insulating aluminum plate according to claim 1, characterized in that: The honeycomb block (21) is bonded to the outer aluminum plate assembly (1) and the inner aluminum plate assembly (3) by a first dotted adhesive layer (13) and a second dotted adhesive layer (34) spaced apart. The spacing of the adhesive layers (5) is 50-80 mm, and the diameter of a single adhesive dot is 10-15 mm.

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