Multilayer composite building floor vibration and sound insulation mat

Abstract

The utility model provides a multilayer composite building floor vibration reduction sound insulation pad belongs to building sound insulation and vibration reduction technical field. Including hard bubble layer, soft bubble layer and glass fiber cloth layer from below to above composite connection, the upper surface of hard bubble layer is equipped with concave -convex structure, the soft bubble layer and hard bubble layer are connected through concave -convex structure each other and embed, glass fiber cloth layer is placed on the soft bubble layer and is connected with it composite. The utility model discloses multilayer composite structure design, and hard bubble layer provides the stability of bearing, and soft bubble layer provides the sound absorption of vibration reduction, and glass fiber cloth layer provides the protection of fire prevention and waterproof, and the layer cooperation effect realizes excellent comprehensive performance, solves the problem of poor vibration reduction effect, poor fire performance and long -term bearing stability in prior art vibration reduction pad.

Description

Technical Field

[0001] This utility model belongs to the field of building sound insulation and vibration reduction technology, specifically relating to a multi-layer composite building floor vibration reduction and sound insulation pad. Background Technology

[0002] With the acceleration of urbanization, the number of high-rise buildings, rail transit, and commercial complexes has increased, making the problems of floor impact noise (such as footsteps and furniture movement) and vibration transmission increasingly prominent. The latest revised national standards, namely the "Code for Sound Insulation Design of Civil Buildings" GB50118-2021, the "Code for Residential Projects" GB55038-2025, and the "Guidelines for Building Good Houses," have set higher requirements for the sound insulation performance of floors.

[0003] Currently, the main types of floating floor vibration damping and sound insulation materials on the market include polyurethane foam, foamed rubber, recycled rubber, rigid polyurethane foam, glass wool, rock wool, rubber and plastic, polystyrene (EPS), cross-linked polyethylene (XPE), graphite polystyrene, modified polypropylene, and polyester fiber. Polyurethane foam, in particular, boasts excellent lightweight, high elasticity, and vibration damping and sound insulation properties, making its market prospects very optimistic, especially in high-end buildings and green energy-saving projects where it holds great potential. However, while these materials offer some vibration damping and sound insulation, they still have shortcomings in long-term load-bearing stability, fire resistance, and vibration damping effect. Specifically, there is a lack of composite structural vibration damping pads that can simultaneously meet the requirements of high vibration damping performance, excellent fire resistance, and long-term structural stability. Utility Model Content

[0004] The technical problem solved by this utility model is to provide a multi-layer composite building floor slab vibration damping and sound insulation pad. This utility model solves the problems of poor vibration damping effect, poor fire resistance and insufficient long-term load-bearing stability of existing vibration damping pads.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A multi-layer composite building floor vibration damping and sound insulation pad includes a rigid foam layer, a soft foam layer, and a fiberglass cloth layer that are sequentially connected from bottom to top; the upper surface of the rigid foam layer is provided with a concave-convex structure, and the soft foam layer and the rigid foam layer are interlocked and connected through the concave-convex structure; the fiberglass cloth layer is placed on top of the soft foam layer and is connected to it in composite.

[0006] Further defining the above scheme, the rigid foam layer is a closed-cell structure foam layer.

[0007] As a further specification of the above scheme, the rigid foam layer is made of rigid polyurethane foam material.

[0008] Further defining the above scheme, the soft foam layer is an open-cell structure foam layer.

[0009] As a further specification of the above scheme, the flexible foam layer is made of foamed polyurethane material.

[0010] As a further limitation of the above scheme, the glass fiber cloth layer is made of an inorganic silicate material layer.

[0011] As a further limitation of the above scheme, the melting point of the glass fiber cloth layer is not lower than 1200°C.

[0012] Further defining the above scheme, the uneven structure of the soft foam layer and the hard foam layer consists of regularly arranged arc-shaped convex and concave protrusions and depressions.

[0013] Advantages of this utility model compared to the prior art: 1. This solution adopts a multi-layer composite structure design. The rigid foam layer provides load-bearing stability, the flexible foam layer provides vibration reduction and sound absorption, and the fiberglass cloth layer provides fireproof and waterproof protection. The synergistic effect of each layer achieves excellent comprehensive performance. 2. This solution adopts a concave-convex structure design, which increases the interlayer contact area and improves the composite strength and vibration reduction effect; 3. This solution adopts a casting process to ensure a tight bond between layers and avoid delamination. 4. The addition of fiberglass cloth layer to the vibration damping pad in this solution significantly improves the product's fire resistance, water resistance, and moisture resistance, meeting the fire protection requirements of high-rise buildings; 5. The overall structure of this design is lightweight and high-strength, facilitating construction and installation, while also meeting building energy conservation requirements. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a flowchart illustrating the manufacturing process of the vibration-damping and sound-insulating pad of this utility model. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0016] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0017] Please see Figure 1-2 The embodiments of this utility model are described in detail below.

[0018] See Figure 1 As shown, the multi-layer composite building floor vibration damping and sound insulation pad of this utility model includes a rigid foam layer 1, a soft foam layer 2 and a glass fiber cloth layer 3 that are sequentially composited from bottom to top. The rigid foam layer 1 is located at the bottom and is made of polyurethane rigid foam material with a closed-cell structure. It has high creep resistance, ensuring long-term load-bearing stability, and also has vibration isolation and heat insulation functions.

[0019] The soft foam layer 2 is located in the middle layer and is made of foamed polyurethane material with an open-cell structure, providing wide-band vibration absorption, high-efficiency sound absorption and vibration reduction functions.

[0020] The fiberglass cloth layer 3 is placed on the top layer and is compositely connected with the flexible foam layer 2. Preferably, the fiberglass cloth layer 3 is made of inorganic silicate material with a melting point as high as 1200℃ or above. It will not burn in a flame, but may only melt or soften (depending on the specific composition and processing temperature). It has a low thermal conductivity, which can effectively block heat transfer and has excellent fire resistance and heat insulation performance.

[0021] See Figure 2 As shown, the upper surface of the rigid foam layer 1 is provided with a concave-convex structure 4, and the flexible foam layer 2 and the rigid foam layer 1 are interlocked and connected through the concave-convex structure 4. Preferably, the concave-convex structure 4 of the flexible foam layer 2 and the rigid foam layer 1 consists of regularly arranged arc-shaped wavy protrusions and depressions. These concave-convex structures increase the contact area with the flexible foam layer, improve the composite strength, and enhance the vibration reduction and noise reduction effect.

[0022] The working principle of this utility model is as follows: When the floor slab is subjected to impact or vibration, the vibration energy is first initially isolated and dispersed through the closed-cell structure of the rigid foam layer 3; then, the vibration energy is further absorbed and attenuated through the open-cell structure of the soft foam layer 2; finally, the fiberglass cloth layer 1 not only provides fireproof, waterproof, and moisture-proof protection, but also blocks the transmission of the remaining vibration energy. The synergistic effect of the three layers achieves a highly efficient vibration reduction and sound insulation effect.

[0023] For the manufacturing process of this vibration damping and sound insulation pad, please refer to [link / reference]. Figure 2 As shown: 1. First, pour the rigid foam layer semi-finished product and form an uneven structure on its surface; 2. Place the rigid foam layer into the mold cavity and pour in the soft foam layer material to make it fit into the uneven structure of the rigid foam layer; 3. After placing the fiberglass cloth, the mold is closed to form a solid overall structure through the casting process.

[0024] This utility model is particularly applicable to building projects with high requirements for vibration reduction, sound insulation and fire protection, such as high-end residential buildings, commercial complexes and rail transit.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A multi-layer composite building floor slab vibration damping and sound insulation pad, characterized in that: It includes a rigid foam layer (1), a soft foam layer (2) and a glass fiber cloth layer (3) that are sequentially connected from bottom to top; the upper surface of the rigid foam layer (1) is provided with a concave-convex structure, and the soft foam layer (2) and the rigid foam layer (1) are interlocked and connected through the concave-convex structure; the glass fiber cloth layer (3) is placed on top of the soft foam layer (2) and connected to it.

2. The multi-layer composite building floor vibration damping and sound insulation pad according to claim 1, characterized in that: The rigid foam layer (1) is a closed-cell structure foam layer.

3. The multi-layer composite building floor vibration damping and sound insulation pad according to claim 1, characterized in that: The rigid foam layer (1) is made of rigid polyurethane foam material.

4. The multi-layer composite building floor vibration damping and sound insulation pad according to claim 1, characterized in that: The soft foam layer (2) is an open-cell structure foam layer.

5. The multi-layer composite building floor vibration damping and sound insulation pad according to claim 1, characterized in that: The flexible foam layer (2) is made of polyurethane foam material.

6. The multi-layer composite building floor vibration damping and sound insulation pad according to claim 1, characterized in that: The glass fiber cloth layer (3) is made of an inorganic silicate material layer.

7. The multi-layer composite building floor vibration damping and sound insulation pad according to claim 1, characterized in that: The melting point of the glass fiber cloth layer (3) is not lower than 1200°C.

8. The multi-layer composite building floor vibration damping and sound insulation pad according to claim 1, characterized in that: The soft foam layer (2) and the hard foam layer (1) have a regular arrangement of arc-shaped protrusions and depressions.

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