A high temperature resistant sound absorbing panel

Abstract

This invention provides a high-temperature resistant sound-absorbing panel, comprising: an outer panel, an inner panel fixedly connected to the surface of the outer panel via a main fixing frame, sound-absorbing holes on both the outer and inner panels, a sound-absorbing cavity inside the main fixing frame, and a mounting frame fixedly connected to the inner side of the sound-absorbing cavity via a limiting plate; a sound insulation mesh fixedly connected inside the mounting frame; and reinforcing plates symmetrically connected to the side of the mounting frame closest to the outer panel, with reinforcing rods symmetrically connected to the surface of the reinforcing plates, the two ends of which abut against the surfaces of the outer and inner panels respectively. Simultaneously, a secondary fixing frame is fixedly connected to the side of the inner panel away from the main fixing frame, a base plate is fixedly connected to the surface of the secondary fixing frame, and a buffer layer is fixedly connected to the inner cavity of the secondary fixing frame. Through the cooperation of the outer panel, main fixing frame, sound insulation mesh, inner panel, secondary fixing frame, and buffer layer, this invention enables the sound-absorbing panel to possess a cavity structure and multiple sets of sound-absorbing structures, thereby effectively enhancing the overall sound absorption and sound insulation effect of the sound-absorbing panel.

Description

Technical Field

[0001] This utility model relates to the field of building materials technology, specifically to a high-temperature resistant sound-absorbing board. Background Technology

[0002] Acoustic panels are a type of building material commonly used to reduce indoor noise and echoes and improve sound quality. They are typically installed on walls, ceilings, or partitions and can absorb sound waves, thereby reducing sound reflection and reverberation. The working principle of acoustic panels is to scatter and absorb sound wave energy through the open pore structure or fiber structure of their material, converting sound energy into a small amount of heat energy. However, most existing acoustic panels are composed of single panels and sound-absorbing materials, and therefore do not have a sandwich structure inside, making the internal structure of the acoustic panel simple. At the same time, the sound-absorbing structure on its surface is mostly a simple through-hole reverberation structure, resulting in a relatively simple sound absorption structure of the acoustic panel, which cannot achieve better sound absorption and sound insulation effects. Utility Model Content

[0003] To overcome the shortcomings of the existing technology, a high-temperature resistant sound-absorbing panel is provided to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, a high-temperature resistant sound-absorbing panel is provided, comprising: an outer panel, an inner panel fixedly connected to the surface of the outer panel via a main fixing frame, sound-absorbing holes being formed on the surfaces of both the outer and inner panels, a sound-absorbing cavity being formed inside the main fixing frame, and a mounting frame being fixedly connected to the inner side of the sound-absorbing cavity via a limiting plate, a sound insulation mesh being fixedly connected inside the mounting frame, and reinforcing plates being symmetrically connected to the side of the mounting frame closest to the outer panel, with reinforcing rods symmetrically connected to the surface of the reinforcing plates, the two ends of the reinforcing rods respectively abutting against the surfaces of the outer and inner panels, while a secondary fixing frame is fixedly connected to the side of the inner panel away from the main fixing frame, a base plate being fixedly connected to the surface of the secondary fixing frame, and a buffer layer being fixedly connected to the inner cavity of the secondary fixing frame.

[0005] Preferably, both the outer and inner panels are square in shape, and multiple sets of sound-absorbing holes are symmetrically opened on the surfaces of both the outer and inner panels, while the adjacent sound-absorbing holes on the surfaces of the outer and inner panels are staggered.

[0006] Preferably, the outer surface of the outer panel is coated with an outer sound-absorbing layer, while the outer panel and the inner panel are coated with an inner sound-absorbing layer on the side opposite to the sound-absorbing cavity. Positioning rings are fixedly connected to the edges of the opposite sides of the outer panel and the inner panel. The positioning rings have a U-shaped structure and a semi-circular cross-section.

[0007] Preferably, the main fixing frame has a U-shaped structure, and four sets of limiting plates are symmetrically connected to the side of the inner cavity of the main fixing frame. The four sets of limiting plates are all elongated structures, and the limiting plates are fixedly connected to the mounting frame by bolts. At the same time, positioning grooves are opened on both sides of the main fixing frame relative to the positioning rings.

[0008] Preferably, the mounting frame has a U-shaped structure, the outer side of the mounting frame is adapted to the size of the sound absorption cavity, and multiple sets of reinforcing plates are fixedly connected to the surface of the mounting frame at equal intervals. The multiple sets of reinforcing plates are all long strip structures, and the mounting frame and reinforcing plates are combined together to form an eye-shaped structure.

[0009] Preferably, multiple sets of reinforcing rods are fixedly connected parallel to each other at equal intervals along the length direction on the surface of the reinforcing plate. All sets of reinforcing rods are cylindrical in shape, and a set of circular abutment plates are fixedly connected to both ends of the reinforcing rods. The end of the reinforcing rod near the inner plate passes through the mesh of the sound insulation net. At the same time, the axial section formed by the combination of the reinforcing rod and the abutment plate is I-shaped.

[0010] Preferably, a set of positioning rods is fixedly connected to each of the four corners of the back of the inner plate, and the four sets of positioning rods are all cylindrical in shape. Positioning holes are opened at the four corners of the sub-fixing frame and the base plate relative to the positioning rods. The sub-fixing frame is U-shaped, while the base plate is square. The buffer layer filled in the sub-fixing frame can be made of aerogel material.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: through the cooperation of the outer panel, main fixing frame, inner panel, secondary fixing frame and base plate, the sound-absorbing panel is a composite structure as a whole. The sound-absorbing cavity, sound insulation mesh, inner sound-absorbing layer and buffer layer set inside the sound-absorbing panel make the sound-absorbing panel have multiple sets of sound-absorbing structures, thereby effectively enhancing the sound absorption and sound insulation effect of the sound-absorbing panel. At the same time, the outer panel, main fixing frame, inner panel, secondary fixing frame and base plate are all made of high temperature resistant materials, which can help enhance the high temperature resistance of the sound-absorbing panel. Attached Figure Description

[0012] Figure 1 This is a front view schematic diagram of an embodiment of the present utility model;

[0013] Figure 2 This is a front view of the main fixing frame according to an embodiment of the present utility model;

[0014] Figure 3 This is a rear view of the inner panel portion of an embodiment of the present utility model;

[0015] Figure 4 This is an embodiment of the present utility model. Figure 1 Enlarged diagram of point A.

[0016] In the diagram: 1. Outer panel; 2. Main fixing frame; 3. Inner panel; 4. Reinforcing plate; 5. Sound insulation mesh; 6. Reinforcing rod; 7. Limiting plate; 8. Base plate; 9. Buffer layer; 10. Positioning rod; 11. Mounting frame; 12. Secondary fixing frame; 13. Positioning ring; 14. Outer sound-absorbing layer; 15. Inner sound-absorbing layer; 16. Sound-absorbing cavity. Detailed Implementation

[0017] Reference Figures 1 to 4 As shown, this utility model provides a high-temperature resistant sound-absorbing panel, comprising: an outer panel 1, an inner panel 3 fixedly connected to the surface of the outer panel 1 via a main fixing frame 2, sound-absorbing holes being formed on the surfaces of both the outer panel 1 and the inner panel 3, and a sound-absorbing cavity 16 being formed inside the main fixing frame 2, with a mounting frame 11 fixedly connected to the inner side of the sound-absorbing cavity 16 via a limiting plate 7, a sound insulation mesh 5 fixedly connected inside the mounting frame 11, and a reinforcing plate 4 symmetrically connected to the side of the mounting frame 11 closest to the outer panel 1, with reinforcing rods symmetrically connected to the surface of the reinforcing plate 4, the two ends of the reinforcing rods 6 respectively abutting against the surfaces of the outer panel 1 and the inner panel 3, while a secondary fixing frame 12 is fixedly connected to the side of the inner panel 3 away from the main fixing frame 2, a base plate 8 fixedly connected to the surface of the secondary fixing frame 12, and a buffer layer 9 fixedly connected to the inner cavity of the secondary fixing frame 12.

[0018] In this embodiment, the substrate 8 on the back of the high-temperature resistant sound-absorbing panel can be fixedly connected to the corresponding suitable area by a fastener, thereby realizing the installation of the high-temperature resistant sound-absorbing panel. During daily use, part of the sound transmitted to the surface of the sound-absorbing panel will be absorbed by the outer sound-absorbing layer 14 coated on the outer side of the outer panel 1, and part of the sound will be transmitted into the sound-absorbing cavity 16 opened inside the sound-absorbing panel through the sound-absorbing holes opened on the surface of the outer panel 1. Then, during the propagation of this part of the sound in the sound-absorbing cavity 16, part of the sound will be absorbed and consumed by the sound insulation mesh 5 inside the sound-absorbing cavity 16, and the other part of the sound will cancel each other out when it is repeatedly reflected in the sound-absorbing cavity 16. Moreover, the inner sound-absorbing layer 15 coated on the outer panel 1 and the inner panel 3 can help improve the energy loss when the sound is reflected and propagated inside the sound-absorbing cavity 16. The remaining sound will be further consumed by the porous structure inside the buffer layer 9 when it is transmitted to the buffer layer 9, thereby effectively enhancing the sound absorption and sound insulation effect of the sound-absorbing panel.

[0019] In a preferred embodiment, both the outer panel 1 and the inner panel 3 are square in shape, and multiple sets of sound-absorbing holes are symmetrically opened on the surfaces of both the outer panel 1 and the inner panel 3, while the adjacent sound-absorbing holes on the surfaces of the outer panel 1 and the inner panel 3 are staggered.

[0020] In this embodiment, as Figure 1 and Figure 3 Both the outer panel 1 and the inner panel 3 are made of high-temperature resistant materials, which can help enhance the overall high-temperature resistance of the sound-absorbing panel. At the same time, the staggered distribution of the sound-absorbing holes on the surface of the outer panel 1 and the inner panel 3 can help enhance the sound absorption effect of the sound-absorbing cavity 16.

[0021] In a preferred embodiment, an outer sound-absorbing layer 14 is coated on the outer side of the outer panel 1, while an inner sound-absorbing layer 15 is coated on the side of the outer panel 1 and the inner panel 3 opposite to the sound-absorbing cavity 16. A positioning ring 13 is fixedly connected to the edge of the opposite side of the outer panel 1 and the inner panel 3. The positioning ring 13 has a square-shaped structure and a semi-circular cross-section.

[0022] In this embodiment, as Figure 4 The outer sound-absorbing layer 14 can be made of sound-absorbing paint, while the inner sound-absorbing layer 15 can be made of sound-insulating coating. Both the outer sound-absorbing layer 14 and the inner sound-absorbing layer 15 have good high-temperature resistance and fire resistance.

[0023] As a preferred embodiment, the main fixing frame 2 has a U-shaped structure. Four sets of limiting plates 7 are symmetrically connected to the side of the inner cavity of the main fixing frame 2. The four sets of limiting plates 7 are all elongated structures. The limiting plates 7 are fixedly connected to the mounting frame 11 by bolts. At the same time, positioning grooves are opened on the two sides of the main fixing frame 2 relative to the positioning ring 13. The inner cavity of the main fixing frame 2 can also be coated with an inner sound-absorbing layer 15 according to actual needs.

[0024] In this embodiment, as Figure 1 , Figure 2 and Figure 4 Both the main fixing frame 2 and the limiting plate 7 can be made of high temperature resistant materials. The setting of the limiting plate 7 can help improve the convenience of loading and unloading the mounting frame 11 inside the main fixing frame 2 and enhance the stability of the fixed connection between the mounting frame 11 and the main fixing frame 2.

[0025] As a preferred embodiment, the mounting frame 11 has a U-shaped structure. The outer side of the mounting frame 11 is matched with the size of the sound absorption cavity 16. Multiple sets of reinforcing plates 4 are fixedly connected to the surface of the mounting frame 11 at equal intervals. The multiple sets of reinforcing plates 4 are all long strip structures. At the same time, the mounting frame 11 and the reinforcing plates 4 are combined to form a U-shaped structure.

[0026] In this embodiment, as Figure 2 and Figure 4 The outer dimensions of the mounting frame 11 are matched with the dimensions of the sound absorption cavity 16, which helps to enhance the stability of the mounting frame 11 when it is placed inside the sound absorption cavity 16. Both the mounting frame 11 and the reinforcing plate 4 can be made of high-temperature resistant materials. The reinforcing plate 4 can also help to enhance the structural strength of the mounting frame 11.

[0027] In a preferred embodiment, multiple sets of reinforcing rods 6 are fixedly connected parallel to each other at equal intervals along the length direction on the surface of the reinforcing plate 4. All sets of reinforcing rods 6 are cylindrical in shape, and a set of circular abutment plates are fixedly connected to both ends of the reinforcing rods 6. The end of the reinforcing rod 6 near the inner plate 3 passes through the mesh of the sound insulation net 5. At the same time, the axial section formed by the combination of the reinforcing rods 6 and the abutment plates is I-shaped.

[0028] In this embodiment, as Figure 1 , Figure 2 and Figure 4The reinforcing rod 6 and the abutment plate are both made of thermally conductive material, which can effectively reduce the rate of heat accumulation inside the outer panel 1, thereby helping to improve the high temperature resistance of the outer panel 1 and thus effectively reducing the probability of the sound-absorbing panel being damaged due to high temperature. At the same time, the setting of the reinforcing rod 6 and the abutment plate can also effectively enhance the internal structural strength of the sound-absorbing panel, and the sound insulation mesh 5 can be made of metal wire.

[0029] In a preferred embodiment, a set of positioning rods 10 are fixedly connected to the four corners of the back of the inner plate 3, and the four sets of positioning rods 10 are all cylindrical in shape. Positioning holes are opened at the four corners of the secondary fixing frame 12 and the base plate 8 relative to the positioning rods 10. Meanwhile, the secondary fixing frame 12 is U-shaped, and the base plate 8 is square. The buffer layer 9 filled in the secondary fixing frame 12 can be made of aerogel material.

[0030] In this embodiment, as Figure 1 , Figure 3 and Figure 4 The positioning rod 10 and positioning hole can help improve the positioning and fixing efficiency between the inner plate 3, the secondary fixing frame 12 and the base plate 8, and also help enhance the stability of the fixed connection between the three. At the same time, the buffer layer 9 is made of aerogel material, whose internal pores are filled with gas to form a unique nanoporous structure. Furthermore, aerogel has extremely low density and excellent heat insulation performance, and can remain stable in extreme high temperature environments, thus helping to enhance the sound absorption and sound insulation effect of the sound-absorbing panel.

Claims

1. A high-temperature resistant sound-absorbing panel, comprising: The outer panel (1) is characterized in that: the surface of the outer panel (1) is fixedly connected to the inner panel (3) by the main fixing frame (2), and the outer panel (1) and the inner panel (3) are both provided with sound-absorbing holes. The main fixing frame (2) is provided with a sound-absorbing cavity (16), and the inner side of the sound-absorbing cavity (16) is fixedly connected to the mounting frame (11) by the limiting plate (7). The mounting frame (11) is fixedly connected to the sound insulation net (5), and the mounting frame (11) is symmetrically connected to the reinforcing plate (4) on the side close to the outer panel (1). The reinforcing plate (4) is symmetrically connected to the reinforcing rod (6). The two ends of the reinforcing rod (6) abut against the surfaces of the outer panel (1) and the inner panel (3) respectively. At the same time, the inner panel (3) is fixedly connected to the sub-fixing frame (12) on the side away from the main fixing frame (2). The sub-fixing frame (12) is fixedly connected to the base plate (8), and the inner cavity of the sub-fixing frame (12) is fixedly connected to the buffer layer (9).

2. The high-temperature resistant sound-absorbing panel according to claim 1, characterized in that, Both the outer panel (1) and the inner panel (3) are square structures, and multiple sets of sound-absorbing holes are symmetrically opened on the surfaces of the outer panel (1) and the inner panel (3), while the adjacent sound-absorbing holes on the surfaces of the outer panel (1) and the inner panel (3) are staggered.

3. The high-temperature resistant sound-absorbing panel according to claim 1, characterized in that, The outer side of the outer plate (1) is coated with an outer sound-absorbing layer (14), and the outer plate (1) and the inner plate (3) are coated with an inner sound-absorbing layer (15) on the side opposite to the sound-absorbing cavity (16). The outer plate (1) and the inner plate (3) are fixedly connected to the edge of the opposite side of the outer plate (1) and the inner plate (3). The positioning ring (13) has a square structure and the cross section of the positioning ring (13) has a semi-circular structure.

4. The high-temperature resistant sound-absorbing panel according to claim 1, characterized in that, The main fixing frame (2) has a U-shaped structure. Four sets of limiting plates (7) are symmetrically connected to the side of the inner cavity of the main fixing frame (2). The four sets of limiting plates (7) are all long strip structures. The limiting plates (7) are fixedly connected to the mounting frame (11) by bolts. At the same time, positioning grooves are opened on both sides of the main fixing frame (2) relative to the positioning ring (13).

5. The high-temperature resistant sound-absorbing panel according to claim 1, characterized in that, The mounting frame (11) has a square-shaped structure. The outer side of the mounting frame (11) and the sound absorption cavity (16) are matched in size. Multiple sets of reinforcing plates (4) are fixedly connected to the surface of the mounting frame (11) at equal intervals. The multiple sets of reinforcing plates (4) are all long strip structures. At the same time, the mounting frame (11) and the reinforcing plates (4) are combined to form a three-dimensional structure.

6. The high-temperature resistant sound-absorbing panel according to claim 1, characterized in that, The reinforcing plate (4) has multiple sets of reinforcing rods (6) fixedly connected at equal intervals along its length. All sets of reinforcing rods (6) are cylindrical in shape, and a set of circular abutment plates are fixedly connected to both ends of the reinforcing rods (6). The end of the reinforcing rod (6) near the inner plate (3) passes through the mesh of the sound insulation net (5). The axial section formed by the reinforcing rods (6) and the abutment plates is I-shaped.

7. The high-temperature resistant sound-absorbing panel according to claim 1, characterized in that, A set of positioning rods (10) are fixedly connected to the four corners of the back of the inner plate (3). The four sets of positioning rods (10) are all cylindrical. Positioning holes are opened at the four corners of the sub-fixing frame (12) and the base plate (8) relative to the positioning rods (10). The sub-fixing frame (12) is in the shape of a square, while the base plate (8) is in the shape of a square. The buffer layer (9) filled in the sub-fixing frame (12) can be made of aerogel material.

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