Environment-friendly high-strength shock-absorbing sound-insulating waterproof structure

Abstract

The utility model belongs to deck dressing technical field discloses an environmental protection type high -strength shock attenuation sound insulation waterproof structure, including shock attenuation sound insulation waterproof dressing main part, shock attenuation sound insulation waterproof dressing main part includes, helmholtz low frequency sound absorbing layer, ceramic cotton board high frequency sound absorbing layer and shock attenuation sound insulation dressing layer, helmholtz low frequency sound absorbing layer is laid on deck, ceramic cotton board high frequency sound absorbing layer is laid on helmholtz low frequency sound absorbing layer, the top of ceramic cotton board high frequency sound absorbing layer is laid with glass fibre layer, shock attenuation sound insulation dressing layer is coated on glass fibre layer, the utility model discloses a wide frequency noise reduction is realized through the layered design, helmholtz low frequency sound absorbing layer utilizes the helmholtz resonance unit of different resonance frequency, carries out effective sound absorption to the low frequency noise of wide range, ceramic cotton board can efficiently absorb high frequency noise, and the adaptability to complex sound wave environment is improved significantly in combination, solve the problem of the limited wide frequency sound wave blocking effect in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of deck dressing technology, and in particular to an environmentally friendly, high-strength shock-absorbing, sound-insulating, and waterproof structure. Background Technology

[0002] In marine engineering and ship decks, different fire-resistant covering layers must be laid; these covering layers are called deck coverings. Deck coverings are covering materials laid on ship decks, mainly serving functions such as heat insulation, noise reduction, and anti-slip. Depending on the needs, ships must use different types of deck coverings, and all ship coverings must possess the properties of heat insulation, noise reduction, smoke suppression, and corrosion resistance.

[0003] Chinese utility model patent CN212529958U discloses an environmentally friendly, high-strength, ultra-lightweight, shock-absorbing, sound-insulating, and waterproof structure. It includes a damping coating on a metal plate, several metal blocks spaced apart above the damping coating, a covering layer on top of the damping coating and metal blocks, a rock wool board on top of the covering layer, a sealant layer on top of the rock wool board, and a galvanized steel plate on top of the sealant layer. These components constitute the shock-absorbing, sound-insulating, and waterproof body. A partition strip is provided between the shock-absorbing, sound-insulating, and waterproof body and the bulkhead, and the partition strip is connected to the bulkhead by sealant.

[0004] The above structure solves some of the defects of the existing technology, but it still has some shortcomings in actual use. For example, it uses a damping coating in combination with rock wool board to achieve noise reduction, but the blocking effect on broadband sound waves is limited and it is difficult to cope with the complex sound wave environment in ship operation.

[0005] Therefore, an environmentally friendly, high-strength vibration-damping, sound-insulating, and waterproof structure is proposed. Utility Model Content

[0006] The purpose of this invention is to provide an environmentally friendly, high-strength, shock-absorbing, sound-insulating, and waterproof structure, thereby solving or at least alleviating one or more of the aforementioned problems and other issues existing in the prior art.

[0007] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0008] An environmentally friendly, high-strength shock-absorbing, sound-insulating, and waterproof structure includes a shock-absorbing, sound-insulating, and waterproof dressing body, wherein the shock-absorbing, sound-insulating, and waterproof dressing body comprises:

[0009] Helmholtz low-frequency noise-absorbing layer, which is laid on the deck;

[0010] A ceramic cotton board high-frequency sound-absorbing layer is laid on the Helmholtz low-frequency sound-absorbing layer, and a glass fiber layer is laid on top of the ceramic cotton board high-frequency sound-absorbing layer.

[0011] A vibration-damping and sound-insulating dressing layer, wherein the vibration-damping and sound-insulating dressing layer is coated on the glass fiber layer.

[0012] According to the present invention, an environmentally friendly, high-strength shock-absorbing, sound-insulating, and waterproof structure is provided, wherein an elastic sealant layer is filled between the main body of the shock-absorbing, sound-insulating, and waterproof dressing and the cabin wall.

[0013] According to the present invention, an environmentally friendly high-strength vibration-damping, sound-insulating and waterproof structure is provided, wherein the Helmholtz low-frequency sound-absorbing layer includes a plate body, the plate body has multiple independent internal cavities, and the top of the plate body has a neck through hole that corresponds to and communicates with each of the internal cavities.

[0014] Among them, at least two inner cavities have different volumes, and / or at least two neck through holes have different cross-sectional areas and / or depths;

[0015] This allows each inner cavity to combine with the corresponding neck through-hole to form a Helmholtz resonance unit with different resonance frequencies.

[0016] According to the present invention, an environmentally friendly, high-strength shock-absorbing, sound-insulating, and waterproof structure further includes a reinforcing skeleton layer, which is embedded inside the shock-absorbing and sound-insulating dressing layer.

[0017] According to the present invention, an environmentally friendly, high-strength shock-absorbing, sound-insulating, and waterproof structure is provided, which further includes a moisture-proof layer. The moisture-proof layer is laid on the high-frequency sound-absorbing layer of the ceramic cotton board and is located at the bottom of the glass fiber layer.

[0018] In an environmentally friendly, high-strength shock-absorbing, sound-insulating, and waterproof structure according to this utility model, the edge of the moisture-proof layer bends downward and wraps around the edge of the ceramic cotton board high-frequency sound-absorbing layer.

[0019] According to the present invention, an environmentally friendly, high-strength shock-absorbing, sound-insulating, and waterproof structure is provided, wherein the moisture-proof layer is an aluminum foil composite polyethylene film with a thickness of 0.2-0.4 mm, and the aluminum foil layer is arranged facing the glass fiber layer.

[0020] According to the present invention, an environmentally friendly, high-strength shock-absorbing, sound-insulating, and waterproof structure is provided, wherein the ceramic cotton board high-frequency sound-absorbing layer has a thickness of 20-50 mm, a bulk density of 80-120 kg / m³, and micropores with a diameter of 2-5 mm are distributed inside.

[0021] According to the present invention, an environmentally friendly, high-strength shock-absorbing, sound-insulating, and waterproof structure is provided, wherein the reinforcing skeleton layer is a galvanized steel wire mesh with a wire diameter of 0.8 to 1.2 mm and a mesh size of 10 mm × 10 mm to 20 mm × 20 mm, and the distance between the reinforcing skeleton layer and the top and bottom surfaces of the shock-absorbing and sound-insulating dressing layer is 10 mm to 15 mm.

[0022] According to the present invention, an environmentally friendly, high-strength shock-absorbing, sound-insulating, and waterproof structure is provided, wherein the plate body is an aluminum alloy plate.

[0023] This utility model has at least the following beneficial effects:

[0024] Wideband noise reduction is achieved through a layered design. The Helmholtz low-frequency silencing layer utilizes Helmholtz resonant units with different resonant frequencies to effectively silencing low-frequency noise over a wide range. The ceramic cotton board high-frequency silencing layer, with its specific thickness, volume density, and internal microporous structure, can efficiently absorb high-frequency noise. The combination of the two significantly improves the adaptability to complex acoustic environments and solves the problem of limited broadband sound wave blocking effect in existing technologies.

[0025] The reinforcing skeleton layer is embedded inside the vibration damping and sound insulation dressing layer, which can improve the strength, stiffness, impact resistance, and deformation resistance of the layer, ensuring the high strength performance of the overall structure and making it less prone to damage under stress.

[0026] The moisture-proof layer is made of aluminum foil composite polyethylene film, with the edges bent downwards to wrap around the edges of the high-frequency sound-absorbing layer of the ceramic cotton board. This effectively prevents moisture from penetrating into the ceramic cotton board, protecting its sound-absorbing performance and service life. The elastic sealant layer is filled between the main body and the bulkhead, which can prevent sound from transmitting through the gaps and prevent moisture from seeping in, further enhancing the waterproof effect.

[0027] Each layer of the structure has a clear division of labor and works in concert. The fiberglass layer enhances the overall structure and assists in sound insulation. The ceramic cotton board high-frequency sound-absorbing layer, the Helmholtz low-frequency sound-absorbing layer, and the fiberglass layer are not rigidly connected and have a certain vibration reduction effect. The whole structure achieves comprehensive functions of environmental protection, high strength, vibration reduction, sound insulation and waterproofing, and meets the needs of use in complex environments such as ships. Attached Figure Description

[0028] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0029] Figure 1 This is a schematic diagram of the environmentally friendly, high-strength shock-absorbing, sound-insulating, and waterproof structure of this utility model;

[0030] Figure 2 for Figure 1 A magnified structural diagram of part A in the diagram;

[0031] Figure 3 This is a schematic cross-sectional view of the Helmholtz sound-absorbing layer of this utility model.

[0032] Explanation of icon numbers:

[0033] 1. Helmholtz low-frequency sound-absorbing layer; 101. Plate body; 102. Inner cavity; 103. Neck through hole; 2. Ceramic cotton board high-frequency sound-absorbing layer; 3. Fiberglass layer; 4. Vibration-damping and sound-insulating dressing layer; 5. Reinforcing skeleton layer; 6. Elastic sealant layer; 7. Bulkhead; 8. Moisture-proof layer. Detailed Implementation

[0034] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0035] Please refer to Figures 1 to 3 As shown, an embodiment of this utility model provides an environmentally friendly, high-strength shock-absorbing, sound-insulating, and waterproof structure, including a shock-absorbing, sound-insulating, and waterproof dressing body. The shock-absorbing, sound-insulating, and waterproof dressing body includes:

[0036] Helmholtz low-frequency sound-absorbing layer 1 is laid on the deck;

[0037] Ceramic cotton board high-frequency sound-absorbing layer 2 is laid on Helmholtz low-frequency sound-absorbing layer 1, and a glass fiber layer 3 is laid on top of ceramic cotton board high-frequency sound-absorbing layer 2.

[0038] The vibration damping and sound insulation dressing layer 4 is coated on the glass fiber layer 3.

[0039] The Helmholtz low-frequency sound-absorbing layer 1 is used to absorb low-frequency noise; the ceramic cotton board high-frequency sound-absorbing layer 2 absorbs high-frequency noise through its internal micropores; the glass fiber layer 3 enhances the overall structure and provides auxiliary sound insulation; the vibration-damping and sound-insulating dressing layer 4 provides basic vibration-damping and sound insulation performance. The ceramic cotton board high-frequency sound-absorbing layer 2 is not rigidly connected to the Helmholtz low-frequency sound-absorbing layer 1 and the glass fiber layer 3, and has a certain vibration-damping effect. The layers work together to achieve vibration reduction, sound insulation and waterproofing functions. The overall structure is designed in layers to deal with different frequencies of noise and different functional requirements, thereby achieving a comprehensive effect of environmental protection, high strength, vibration reduction, sound insulation and waterproofing.

[0040] In this embodiment, an elastic sealant layer 6 is filled between the shock-absorbing, sound-insulating, and waterproof dressing body and the cabin wall 7.

[0041] The elastic sealant layer 6 can fill the gap between the shock-absorbing, sound-insulating, and waterproof dressing body and the bulkhead 7, preventing sound from propagating through the gap. At the same time, its elastic properties can buffer the transmission of structural vibrations to the bulkhead 7, enhancing the overall sound insulation and shock absorption effect of the structure. It can also play a waterproof role, preventing water from seeping in from the gap.

[0042] In this embodiment, the Helmholtz low-frequency noise reduction layer 1 includes a plate 101, the plate 101 has a plurality of independent inner cavities 102 inside, and the top of the plate 101 has a neck through hole 103 that corresponds to and communicates with the inner cavities 102.

[0043] Among them, at least two inner cavities 102 have different volumes, and / or at least two neck through holes 103 have different cross-sectional areas and / or depths;

[0044] This allows each inner cavity 102 to combine with the corresponding neck through hole 103 to form a Helmholtz resonance unit with different resonance frequencies.

[0045] The working principle of the Helmholtz resonant unit is that when the frequency of the incident sound wave is the same as the natural frequency of the resonant unit, it will cause strong resonance of the air column inside the neck through-hole 103. During the resonance process, the air column rubs and dampes against the wall of the neck through-hole 103, converting sound energy into heat energy and dissipating it, thereby achieving the purpose of noise reduction. Since each Helmholtz resonant unit has a different resonant frequency, the Helmholtz low-frequency noise reduction layer 1 can effectively reduce low-frequency noise over a wide frequency range.

[0046] It should be noted that in this embodiment, the resonant frequency of the Helmholtz resonant unit group covers the 50-500Hz frequency band, and the resonant frequency interval between adjacent units is ≤50Hz.

[0047] Specifically, in this embodiment, a reinforcing skeleton layer 5 is also included, which is embedded inside the vibration damping and sound insulation dressing layer 4.

[0048] The reinforcing skeleton layer 5 is embedded inside the vibration damping and sound insulation dressing layer 4, which can improve the strength and rigidity of the vibration damping and sound insulation dressing layer 4, enhance its impact resistance and deformation resistance, and make the vibration damping and sound insulation dressing layer 4 less susceptible to damage when subjected to external forces, thereby ensuring the high strength performance of the overall structure.

[0049] In this embodiment, a moisture-proof layer 8 is also included. The moisture-proof layer 8 is laid on the high-frequency sound-absorbing layer 2 of the ceramic cotton board and is located at the bottom of the glass fiber layer 3.

[0050] The moisture-proof layer 8 can prevent moisture from penetrating into the high-frequency sound-absorbing layer 2 of the ceramic cotton board, thus preventing the ceramic cotton board from reducing its high-frequency sound-absorbing performance and service life due to moisture, and ensuring that the high-frequency sound-absorbing layer 2 of the ceramic cotton board always maintains a good working condition.

[0051] In this embodiment, the edge of the moisture-proof layer 8 bends downward and wraps around the edge of the ceramic cotton board high-frequency sound-absorbing layer 2.

[0052] The edge of the moisture-proof layer 8 bends downward and wraps around the edge of the ceramic cotton board high-frequency sound-absorbing layer 2, further enhancing the moisture-proof effect and preventing moisture from seeping in from the edge of the ceramic cotton board high-frequency sound-absorbing layer 2, thus fully protecting the ceramic cotton board high-frequency sound-absorbing layer 2 from moisture erosion.

[0053] Furthermore, in this embodiment, the moisture-proof layer 8 is an aluminum foil composite polyethylene film with a thickness of 0.2 to 0.4 mm, and the aluminum foil layer is disposed facing the glass fiber layer 3.

[0054] The aluminum foil layer in the aluminum foil composite polyethylene film has excellent barrier properties, effectively preventing the penetration of moisture and gas. The polyethylene film, on the other hand, has a certain degree of flexibility and corrosion resistance. The combination of the two gives the moisture-proof layer 8 both good moisture-proof performance and ease of construction. The aluminum foil layer is positioned facing the glass fiber layer 3, which utilizes the reflective properties of the aluminum foil to reduce heat transfer and avoids potential wear from direct contact between the aluminum foil layer and the ceramic cotton board.

[0055] Furthermore, in this embodiment, the ceramic cotton board high-frequency sound-absorbing layer 2 has a thickness of 20-50 mm, a bulk density of 80-120 kg / m³, and micropores with a diameter of 2-5 mm are distributed inside.

[0056] The thickness, bulk density, and microporous structure of the ceramic cotton board high-frequency sound-absorbing layer 2 work together to achieve high-frequency sound absorption. A certain thickness ensures that sound waves have sufficient propagation paths within it, undergoing multiple reflections and friction with the micropore walls, converting sound energy into heat energy; a suitable bulk density and micropore diameter of 2-5 mm facilitate effective absorption of high-frequency sound waves, making it easier for high-frequency sound waves to enter the micropores and be consumed, thus achieving a good high-frequency sound absorption effect.

[0057] In this embodiment, the reinforcing skeleton layer 5 is a galvanized steel wire mesh with a wire diameter of 0.8 to 1.2 mm and a mesh size of 10 mm × 10 mm to 20 mm × 20 mm. The distance between the reinforcing skeleton layer 5 and the top and bottom surfaces of the vibration damping and sound insulation dressing layer 4 is 10 mm to 15 mm.

[0058] The galvanized steel wire mesh serves as the reinforcing skeleton layer 5. Its wire diameter and mesh size are designed to ensure even distribution within the vibration-damping and sound-insulating dressing layer 4, allowing it to bond tightly with the dressing material and jointly withstand external forces, thus improving the overall strength and crack resistance of the vibration-damping and sound-insulating dressing layer 4. Maintaining a distance of 10mm to 15mm between the reinforcing skeleton layer 5 and the top and bottom surfaces of the vibration-damping and sound-insulating dressing layer 4 ensures it is in the optimal stress-bearing position within the dressing layer, maximizing its reinforcing effect while avoiding potential corrosion problems caused by excessive proximity to the surface.

[0059] Furthermore, in this embodiment, the plate 101 is an aluminum alloy plate.

[0060] The aluminum alloy plate, serving as the plate body 101 of the Helmholtz low-frequency anechoic layer 1, possesses advantages such as high strength, light weight, and corrosion resistance. It provides stable structural support for the inner cavity 102 and the neck through-hole 103, ensuring the shape and size stability of the Helmholtz resonant unit, thereby guaranteeing the stability of its anechoic performance. Simultaneously, the properties of aluminum alloy give the plate body 101 good machinability, facilitating the fabrication of the required inner cavity and neck through-hole structures.

[0061] The specific operating steps of this utility model are as follows:

[0062] 1. Construction preparation:

[0063] Ensure that all embedded parts installation and welding work affecting the application of the dressing has been completed, remove debris, rust, paint, water and dust from the deck, and perform rust removal according to P2 level in CB3230 / ST2 level in ISO8501-1.1988 standard.

[0064] If necessary, apply 1-2 coats of anti-rust paint to the deck.

[0065] 2. Laying Helmholtz Low-Frequency Sound Absorbing Layer 1: Lay the Helmholtz Low-Frequency Sound Absorbing Layer 1 on the treated deck, ensuring that it is laid flat and firmly.

[0066] 3. Laying ceramic cotton board high-frequency sound-absorbing layer 2: Lay ceramic cotton board high-frequency sound-absorbing layer 2 on the Helmholtz low-frequency sound-absorbing layer 1, with tight joints and no gaps.

[0067] 4. Treating the moisture-proof layer 8: Lay the moisture-proof layer 8 on the ceramic cotton board high-frequency sound-absorbing layer 2, so that its edges bend downward and wrap around the edges of the ceramic cotton board high-frequency sound-absorbing layer 2.

[0068] 5. Laying fiberglass layer 3: Lay fiberglass layer 3 on moisture-proof layer 8, with an overlap width of not less than 100mm.

[0069] 6. Install the reinforcing skeleton layer 5: Lay the reinforcing skeleton layer 5 on the fiberglass layer 3 with an overlap width of not less than 100mm and a maximum of 3 overlap layers. Secure the overlaps with galvanized iron wire.

[0070] 7. Apply a shock-absorbing and sound-insulating dressing layer 4:

[0071] Mix according to the material ratio: mix 1 packet of coagulant powder with 1 bag of filler aggregate and add about 7-8 kg of water, and stir into a uniform thick mud.

[0072] Pour the mixed dressing onto the application surface, spread it evenly with a scraper, and pat it firmly. Then lift the reinforcing skeleton layer 5 by about 10-15mm, and smooth the application surface with a mud slab to ensure that the application thickness meets the requirements.

[0073] 8. Maintenance and treatment:

[0074] After the dressing has hardened, fill the space between the main body of the shock-absorbing, sound-insulating, and waterproof dressing and the bulkhead 7 with an elastic sealant layer 6 to ensure a tight seal. Then, sprinkle water or spray a curing solution on its surface, cover it with an airtight material, and cure for 2-3 days.

[0075] During the maintenance period, the ambient temperature should be within the range of 5-30℃. If the temperature is higher or lower than this range, cooling or heat preservation measures should be taken.

[0076] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the present invention's conception through the foregoing teachings or related technical or knowledge. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. An environmentally friendly, high-strength, shock-absorbing, sound-insulating, and waterproof structure, characterized in that: The dressing body includes a shock-absorbing, sound-insulating, and waterproof material, which comprises: Helmholtz low-frequency noise reduction layer (1), which is laid on the deck; Ceramic cotton board high-frequency sound-absorbing layer (2), the ceramic cotton board high-frequency sound-absorbing layer (2) is laid on the Helmholtz low-frequency sound-absorbing layer (1), and a glass fiber layer (3) is laid on the top of the ceramic cotton board high-frequency sound-absorbing layer (2). A shock-absorbing and sound-insulating dressing layer (4) is coated on the glass fiber layer (3).

2. The environment-friendly high-strength shock-absorbing and sound-insulating waterproof structure according to claim 1, characterized in that: An elastic sealant layer (6) is filled between the main body of the shock-absorbing, sound-insulating, and waterproof dressing and the cabin wall (7).

3. The environment-friendly high-strength shock-absorbing and sound-insulating waterproof structure according to claim 1, characterized in that: The Helmholtz low-frequency noise reduction layer (1) includes a plate (101), the plate (101) has multiple independent inner cavities (102) inside, and the top of the plate (101) has a neck through hole (103) that corresponds to and communicates with the inner cavities (102). Among them, at least two inner cavities (102) have different volumes, and / or at least two neck through holes (103) have different cross-sectional areas and / or depths; This allows each inner cavity (102) to combine with the corresponding neck through hole (103) to form a Helmholtz resonance unit with different resonance frequencies.

4. The environment-friendly high-strength shock-absorbing and sound-insulating waterproof structure according to claim 1, characterized in that: It also includes a reinforcing skeleton layer (5), which is embedded inside the vibration damping and sound insulation dressing layer (4).

5. The environmentally friendly high-strength shock-absorbing and sound-insulating waterproof structure according to claim 1, characterized in that: It also includes a moisture-proof layer (8), which is laid on the ceramic cotton board high-frequency sound-absorbing layer (2) and located at the bottom of the glass fiber layer (3).

6. The environment-friendly high-strength shock-absorbing and sound-insulating waterproof structure according to claim 5, characterized in that: The edge of the moisture-proof layer (8) bends downward and wraps around the edge of the ceramic cotton board high-frequency sound-absorbing layer (2).

7. The environmentally friendly high-strength shock-absorbing and sound-insulating waterproof structure according to claim 6, characterized in that: The moisture-proof layer (8) is an aluminum foil composite polyethylene film with a thickness of 0.2 to 0.4 mm, and the aluminum foil layer is arranged facing the glass fiber layer (3).

8. The environment-friendly high-strength shock-absorbing and sound-insulating waterproof structure according to claim 6, characterized in that: The ceramic cotton board high-frequency sound-absorbing layer (2) has a thickness of 20-50 mm, a bulk density of 80-120 kg / m³, and micropores with a diameter of 2-5 mm distributed inside.

9. The environmentally friendly high-strength shock-absorbing and sound-insulating waterproof structure according to claim 4, characterized in that: The reinforcing skeleton layer (5) is a galvanized steel wire mesh with a wire diameter of 0.8 to 1.2 mm and a mesh size of 10 mm × 10 mm to 20 mm × 20 mm. The distance between the reinforcing skeleton layer (5) and the top and bottom surfaces of the vibration damping and sound insulation dressing layer (4) is 10 mm to 15 mm.

10. The environment-friendly high-strength shock-absorbing and sound-insulating waterproof structure according to claim 3, characterized in that: The plate (101) is an aluminum alloy plate.

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