Lightweight sound insulation board with assembly structure

Abstract

The utility model relates to the technical field of boards, and discloses a light sound insulation board with an assembly structure, which comprises an upper layer board, a sound absorption core board and a lower layer board which are assembled together, a plurality of first partition boards are arranged on the lower side of the upper layer board, and second partition boards corresponding to the first partition boards are arranged on the upper side of the lower layer board. The first partition plate and the second partition plate are buckled with each other, so that a plurality of groove cavities are formed between the first partition plate and the second partition plate; the sound-absorbing core plates are mounted in the groove cavities and fill the groove cavities; the first partition plates and the second partition plates located inside are buckled and fixed through buckles, and the first partition plates and the second partition plates located on the edges are buckled and fixed through buckling grooves and inserting cores which are matched with each other. As the upper-layer plate and the lower-layer plate form a stable groove cavity after being assembled through the buckles, the buckling grooves and the insertion cores, the problems of inconvenient forming and processing and relatively high production cost caused by integral forming of the upper-layer plate, the lower-layer plate and the partition plate are avoided; and the assembled structure is stable and reliable, and the defect that the upper-layer plate and the lower-layer plate are layered and stripped due to the assembled structure is avoided.

Description

Technical Field

[0001] This utility model relates to the field of panel technology, and in particular to a lightweight sound insulation panel with an assembled structure suitable for rail transit such as subways and urban rail transit, which is applicable to sound insulation flooring and wall panels. Background Technology

[0002] Safety, comfort, energy conservation, and environmental protection are key indicators for the development of floor and wall panels in rail transit systems. Noise control and lightweight design are core technologies. However, noise control and lightweight design are often contradictory. Due to the law of mass, lightweight panels often have lower sound insulation than heavy panels, which is detrimental to noise isolation and also negatively impacts the mechanical properties of the floor, such as tensile strength, compressive strength, bending strength, impact resistance, and fatigue resistance. Therefore, designing a lightweight structure while simultaneously improving its sound insulation is a significant technical challenge. Furthermore, different noise reduction materials operate primarily in different frequency ranges. For example, damping materials typically have better noise reduction effects in the low to mid-frequency range, while sound-absorbing and sound-insulating materials generally function in the mid to high-frequency range. However, the noise problem in subway vehicles often exhibits broadband characteristics. Simultaneously, rail transit, especially high-speed rail, places high demands on the mechanical properties of floor and wall panels.

[0003] To address the issue of broadband noise reduction, the applicant previously designed a lightweight sound-insulating floor with lightweight sound-absorbing core panels and a covering film, as described in Chinese Utility Model Patent Publication No. CN220743012U. This floor includes a floor frame, several lightweight sound-absorbing core panels, and a covering film. The floor frame is a hollow frame with several cavities, and both its upper and lower sides are closed surfaces. Each lightweight sound-absorbing core panel is wrapped by its corresponding covering film to form a closed enclosure, which is located within and fills the cavity. While this utility model offers superior broadband sound absorption performance, a simple sound insulation and noise reduction structure, and retains lightweight characteristics, the cavities in the floor frame present challenges in manufacturing and shaping. Utility Model Content

[0004] The purpose of this utility model is to provide a lightweight sound insulation board with an assembly structure that is easy to process into floor frames, and to provide at least one beneficial option or create conditions to solve one or more technical problems existing in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution.

[0006] A lightweight sound insulation board with an assembled structure includes an upper panel, a sound-absorbing core panel, and a lower panel assembled together. The upper panel has several first partitions on its underside, and the lower panel has second partitions corresponding to the first partitions on its upper side. The first and second partitions are interlocked to form several cavities between the upper and lower panels. The sound-absorbing core panel is installed in and fills the cavities. The first and second partitions located inside are fixed by snap-fit ​​fasteners, while the first and second partitions located at the edges are fixed by interlocking slots and inserts.

[0007] More preferably, both the first partition and the second partition are strips that run across two opposite sides, and the strips are arranged parallel to each other.

[0008] More preferably, the lower plate is provided with an mounting strip, and the mounting strip has an upwardly protruding part. The two sides of the upper plate are supported by the mounting strip and the protruding part, respectively, and the fastening grooves on both sides are located on the inner and outer sides of the protruding part, respectively.

[0009] More preferably, an extension edge is provided on both sides of the upper plate, the lower side of the extension edge is attached to the upper side of the mounting edge strip and pressed by the mounting edge strip of the adjacent lightweight sound insulation board.

[0010] More preferably, the groove is a square groove, a circular groove, or an elliptical groove, and the insert is a rigid component.

[0011] More preferably, the upper and lower layers are made of the same or different materials, and the upper and lower layers are selected from one or more of metal plates and fiber-reinforced resin plates.

[0012] More preferably, the lightweight sound-absorbing core board consists of a core and a covering film covering the core, wherein the covering film is a metal film or a metal-resin composite film, and the core is a lightweight body with pores.

[0013] The technical solution provided by this utility model has at least the following technical effects or advantages.

[0014] This utility model provides a lightweight sound insulation board with an assembly structure. Since the upper and lower panels are two separate parts, they are assembled by snaps, grooves, and inserts to form a stable cavity. This avoids the problems of inconvenient molding and processing and relatively high production costs caused by the integrated molding of the upper, lower, and partition panels. Moreover, the assembled structure is stable and reliable, avoiding the delamination defects of the upper and lower panels caused by the assembly structure. Attached Figure Description

[0015] Figure 1The diagram shown is a structural schematic of the lightweight sound-insulating floor provided by this utility model.

[0016] Figure 2 As shown Figure 1 Enlarged view of point A.

[0017] Figure 3 As shown Figure 1 Enlarged view of point B.

[0018] Figure 4 The diagram shown is a partial cross-sectional view of the lightweight sound-insulating floor provided by this utility model.

[0019] Figure 5 As shown Figure 4 Enlarged view of point C.

[0020] Figure 6 The image shown is a cross-sectional schematic diagram of the lightweight sound-insulating floor provided by this utility model.

[0021] Explanation of the reference numerals in the attached figures.

[0022] 1: Upper panel, 2: Sound-absorbing core panel, 3: Lower panel, 4: Cavity, 5: Clip, 6: Clip groove, 7: Insert core.

[0023] 1-1: First partition,

[0024] 3-1: Second partition; 3-2: Installation strip; 3-3: Protrusion. Detailed Implementation

[0025] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings, making the technical solution and beneficial effects of this utility model clearer and more explicit. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0026] Additional aspects and advantages of this invention will become apparent in the description that follows, or may be learned by practice of this invention.

[0027] Reference Figures 1-3 and Figure 6As shown, a lightweight sound insulation board with an assembled structure includes an upper board 1, a sound-absorbing core board 2, and a lower board 3 assembled together. Several first partitions 1-1 are provided on the lower side of the upper board 1, and second partitions 3-1 corresponding to the first partitions 1-1 are provided on the upper side of the lower board 3. The first partitions 1-1 and the second partitions 3-1 are interlocked, forming several cavities 4 between the upper board 1 and the lower board 3. The sound-absorbing core board 2 is installed in and fills the cavities 4. The first partitions 1-1 and the second partitions 3-1 located inside are fastened and fixed by snap-fit ​​5, and the first partitions 1-1 and the second partitions 3-1 located at the edges are fastened and fixed by interlocking slots 6 and inserts 7.

[0028] The present embodiment provides a lightweight sound insulation board with an assembly structure. The specific assembly method is as follows: 1) The upper plate 1 and the lower plate 3 are fastened together by the corresponding buckles 5, and the insert 7 is inserted into the buckle groove 6 to form a stable cavity 4 between the upper plate 1 and the lower plate 3; 2) The sound-absorbing core plate 2 is placed in the cavity 4 and the cavity is filled.

[0029] Compared with the prior art, the lightweight sound insulation board with an assembly structure provided in this embodiment has two separate parts, the upper board 1 and the lower board 3, which are assembled by the snap fastener 5, the snap groove 6 and the insert 7 to form a stable cavity. This avoids the problems of inconvenient molding and processing and relatively high production costs caused by the integral molding of the upper board, the lower board and the partition. Moreover, the structure after assembly is stable and reliable, avoiding the delamination defect of the upper board and the lower board caused by the assembly structure.

[0030] Refer to Figure 4 , Figure 5 As shown, both the first partition 1-1 and the second partition 3-1 are strip-shaped plates that run horizontally across two opposite sides. The strip-shaped plates are arranged parallel to each other, and the spacing between adjacent partitions is equal. This not only facilitates the assembly of the sound-absorbing core plate 2 into the cavity 4, but also allows for the use of sound-absorbing core plates 2 in different cavities 4.

[0031] Refer to Figure 2 , Figure 3 As shown, the lower plate 3 is provided with a mounting strip 3-2, and the mounting strip 3-2 is provided with an upward protrusion 3-3. The two sides of the upper plate 1 are supported by the mounting strip 3-2 and the protrusion 3-3 respectively. The fastening grooves 6 on both sides are located on the inner and outer sides of the protrusion 3-3 respectively; this facilitates the splicing operation of the upper plate 1 and the lower plate 3.

[0032] In some embodiments, extended edges are provided on both sides of the upper layer, with the lower side of the extended edges abutting against the upper side of the mounting strip. Thus, after assembly into a wall or floor panel, the two sides of the upper layer are pressed against the lower layer by the mounting strips of adjacent lightweight sound-insulating materials, resulting in better anti-delamination and peeling effects.

[0033] In this embodiment, the buckle groove 6 is preferably a square groove, and the insert is a metal insert. In some embodiments, the buckle groove can be a circular groove or an elliptical groove, and the insert can be a rigid rubber strip or other rigid component, not limited to this embodiment.

[0034] In this embodiment, the upper layer 1 and the lower layer 3 are made of the same material, namely fiber-reinforced resin board. In some embodiments, the upper layer 1 and the lower layer 3 may be made of different materials, and the upper layer 1 and the lower layer 3 may be selected from one or more of metal plates and fiber-reinforced resin boards.

[0035] In this embodiment, the lightweight sound-absorbing core board 2 consists of a core and a covering film encapsulating the core. The covering film is a metal film, and the core is a honeycomb structure. In some embodiments, the covering film is a metal-resin composite film, and the core is a foam or other lightweight material with pores.

[0036] It should also be noted that in the description of this utility model, directional terms such as "center", "horizontal", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this utility model.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature, and in this description of the utility model, "at least" means one or more, unless otherwise explicitly specified.

[0038] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can also refer to a mechanical connection; they can refer to a direct connection or a connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] In this utility model, unless otherwise specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "below," and "over" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Above," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0040] Based on the above description of the structure and principle, those skilled in the art should understand that this utility model is not limited to the specific embodiments described above. Improvements and substitutions made using techniques known in the art based on this utility model all fall within the protection scope of this utility model, which should be defined by the claims and their equivalents. Parts not described in the specific embodiments are all prior art or common knowledge.

Claims

1. A lightweight sound insulation board with an assembled structure, comprising an upper board, a sound-absorbing core board, and a lower board assembled together, characterized in that, A plurality of first partitions are provided on the lower side of the upper plate, and a second partition corresponding to the first partitions is provided on the upper side of the lower plate. The first partitions and the second partitions are interlocked to form a plurality of cavities between the upper plate and the lower plate. The sound-absorbing core board is installed in the cavities and fills the cavities. The first partitions and the second partitions located inside are fixed by snap-fit, and the first partitions and the second partitions located at the edges are fixed by interlocking slots and inserts.

2. The lightweight sound insulation board with an assembled structure according to claim 1, characterized in that, Both the first partition and the second partition are strips that run horizontally across two opposite sides, and the strips are arranged parallel to each other.

3. The lightweight sound insulation board with an assembled structure according to claim 1, characterized in that, The lower plate is provided with a mounting strip, and the mounting strip has an upward protrusion. The upper plate is supported by the mounting strip and the protrusion on both sides, respectively. The fastening grooves on both sides are located on the inner and outer sides of the protrusion, respectively.

4. The lightweight sound insulation board with an assembled structure according to claim 3, characterized in that, Extended edges are provided on both sides of the upper plate, and the lower side of the extended edge is attached to the upper side of the mounting edge strip and pressed by the mounting edge strip of the adjacent lightweight sound insulation board.

5. A lightweight sound-insulating board with an assembled structure according to claim 1 or 3, characterized in that, The groove is a square groove, a circular groove, or an elliptical groove, and the insert is a rigid component.

6. The lightweight sound insulation board with an assembled structure according to claim 1, characterized in that, The upper and lower layers may be made of the same or different materials, and the upper and lower layers are selected from one or more of metal plates and fiber-reinforced resin plates.

7. The lightweight sound insulation board with an assembled structure according to claim 1, characterized in that, The sound-absorbing core board consists of a core and a covering film that covers the core. The covering film is a metal film or a metal-resin composite film, and the core is a lightweight body with pores.

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