Cabin soundproofing and damping structure

Abstract

The utility model relates to the field of cabin sound insulation and shock absorption, and concretely is a cabin sound insulation and shock absorption structure, including bottom plate, the top fixedly connected with rubber shock pad of bottom plate, the inner wall of rubber shock pad is fixedly connected with first limit piece and second limit piece respectively, the number of first limit piece and second limit piece is two respectively, the utility model discloses the synergistic effect of bottom plate, first limit piece, second limit piece, installation frame, first connecting block, second connecting block and reinforcing block has realized the firm connection and convenient disassembly of sound insulation board mounting structure, has effectively promoted the installation efficiency and stability of sound insulation board, has solved the problem such as easy loosening, difficult disassembly and low efficiency in traditional installation mode, in addition, through the combined use of rubber shock pad, honeycomb board and sound insulation board, further enhance the sound insulation and shock absorption effect of cabin, effectively avoid the noise invasion cabin, thereby guarantee the comfortable riding experience of passenger.

Description

Technical Field

[0001] This utility model relates to the field of cabin sound insulation and vibration reduction, specifically to cabin sound insulation and vibration reduction structures. Background Technology

[0002] The airplane is one of the most significant inventions of the early 20th century. An airplane is a means of transportation that flies within the atmosphere by using one or more engines to generate forward thrust or pull and fixed wings to generate lift. It uses the cabin to carry passengers and cargo. The cabin is mainly divided into first class, business class, and economy class, based on the price. However, airplanes generate a lot of noise during flight, so the cabin needs to be soundproofed and noise reduced.

[0003] When passengers are on an airplane, they are in the cabin. In order to improve the sound insulation and vibration reduction effect of the cabin and avoid the vibration and noise generated during the flight from affecting the passenger's riding experience, sound insulation and vibration reduction structures need to be installed in the cabin. However, the existing cabin sound insulation and vibration reduction structures are relatively complicated to install, and their effectiveness will gradually decrease over time, resulting in poor sound insulation and vibration reduction performance of the cabin, which in turn affects the passenger's riding experience. Utility Model Content

[0004] To address the shortcomings of existing technologies, the current cabin sound insulation and vibration reduction structures are relatively cumbersome to install, and their effectiveness gradually decreases over time, leading to a deterioration in the cabin's sound insulation and vibration reduction performance, which in turn affects the passenger's riding experience. This utility model proposes a cabin sound insulation and vibration reduction structure.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a cabin sound insulation and vibration reduction structure, including a base plate, a rubber vibration damping plate fixedly connected to the top of the base plate, a first limiting block and a second limiting block fixedly connected to the inner wall of the rubber vibration damping plate, two of each of the first and second limiting blocks, an installation frame fixedly connected to the top of the vibration damping plate, four of the installation frames, a honeycomb panel fixedly connected to the inner wall of the installation frame, several of the honeycomb panels, a sound insulation plate provided between the tops of the first and second limiting blocks, two first connecting blocks and three second connecting blocks fixedly connected to the tops of the first and second limiting blocks respectively, a slot provided on the inner wall of the first connecting block, two reinforcing blocks fixedly connected to the bottom of the sound insulation plate, the surface of the reinforcing block contacting the inner cavity of the slot, and the top of the second connecting block in close contact with the bottom of the sound insulation plate.

[0006] Preferably, the bottom of the sound insulation panel is fixedly connected to a support plate, and there are two support plates, with the bottom of the support plate in close contact with the top of the shock-absorbing panel.

[0007] Preferably, a limiting rod is provided between the two opposing sides of the two support plates. The number of limiting rods is several. One end of the limiting rod passes through the inner wall of the second connecting block, the first connecting block and the reinforcing block in sequence. A rivet that cooperates with the limiting rod is provided on the opposing side of the two support plates. The number of rivets is several. One end of the rivet is fixedly connected to one end of the limiting rod.

[0008] Preferably, the inner walls of the support plate, the first connecting block, the second connecting block, and the reinforcing block are all provided with mounting holes for use with the limiting rod. There are several mounting holes. The inner cavity of the mounting hole is in contact with the surface of the limiting rod. The surface of the limiting rod is fixedly connected with a protective pad. There are three protective pads. The surface of the protective pad is in contact with the inner cavity of the mounting hole.

[0009] Preferably, a base layer is fixedly connected to the top of the sound insulation panel, and a sealing connection layer is fixedly connected to the top of the base layer, the sealing connection layer being bonded with sealant.

[0010] Preferably, a sound insulation layer is fixedly connected to the top of the sealing connection layer, and the sound insulation layer is made of sound insulation cotton.

[0011] Preferably, a sound-absorbing layer is fixedly connected to the top of the sound insulation layer, and the sound-absorbing layer is made of composite polyether sponge.

[0012] The advantages of this utility model are:

[0013] This utility model achieves a stable connection and convenient disassembly of the sound insulation panel installation structure through the synergistic action of the base plate, the first limiting block, the second limiting block, the mounting frame, the first connecting block, the second connecting block, and the reinforcing block. This effectively improves the installation efficiency and stability of the sound insulation panel and solves the problems of easy loosening, difficult disassembly, and low efficiency in traditional installation methods. In addition, by setting up a combination of rubber damping plates, honeycomb plates, and sound insulation panels, the sound insulation and vibration reduction effect of the cabin is further enhanced, effectively preventing noise from entering the cabin and thus ensuring a comfortable riding experience for passengers. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0016] Figure 2This is an exploded view of the sound insulation panel and the base plate of this utility model;

[0017] Figure 3 This is a bottom-view perspective view of the sound insulation panel of this utility model;

[0018] Figure 4 This is an exploded view of a partial structure of the present invention;

[0019] Figure 5 This is a schematic diagram showing the connection between the base layer, connecting layer, sound insulation layer, and sound absorption layer of this utility model.

[0020] In the diagram: 1. Base plate; 2. First limiting block; 3. Vibration damping plate; 4. Second limiting block; 5. Mounting frame; 6. Rivet; 7. Support plate; 8. Sound insulation board; 9. Connecting layer; 10. Base layer; 11. First connecting block; 12. Second connecting block; 13. Mounting hole; 14. Reinforcing block; 15. Protective pad; 16. Limiting rod; 17. Slot; 18. Honeycomb panel; 19. Sound insulation layer; 20. Sound absorption layer. Detailed Implementation

[0021] 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.

[0022] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0023] This application discloses an engine room sound insulation and vibration reduction structure. (Refer to...) Figures 1-5The cabin sound insulation and vibration reduction structure includes a base plate 1. A rubber damping plate 3 is fixedly connected to the top of the base plate 1. A first limiting block 2 and a second limiting block 4 are fixedly connected to the inner wall of the rubber damping plate 3, with two of each. Four mounting frames 5 are fixedly connected to the top of the damping plate 3. Several honeycomb panels 18 are fixedly connected to the inner wall of the mounting frames 5. A sound insulation plate 8 is provided between the tops of the first limiting blocks 2 and the second limiting blocks 4. Two first connecting blocks 11 and three second connecting blocks 12 are fixedly connected to the tops of the first limiting blocks 2 and the second limiting blocks 4, respectively. A slot 17 is provided on the inner wall of the first connecting blocks 11. A reinforcing block 14 is fixedly connected to the bottom of the sound insulation plate 8. There are two reinforcing blocks 14. The surface of the reinforcing block 14 contacts the inner cavity of the slot 17, and the top of the second connecting block 12 is in close contact with the bottom of the sound insulation panel 8. Through the coordinated action of the base plate 1, the first limiting block 2, the second limiting block 4, the mounting frame 5, the first connecting block 11, the second connecting block 12 and the reinforcing block 14, a stable connection and convenient disassembly of the sound insulation panel 8 installation structure are achieved, which effectively improves the installation efficiency and stability of the sound insulation panel 8 and solves the problems of easy loosening, difficult disassembly and low efficiency in traditional installation methods. In addition, by setting the rubber damping plate 3, the honeycomb plate 18 and the sound insulation panel 8 in combination, the sound insulation and vibration reduction effect of the cabin is further enhanced, effectively preventing noise from entering the cabin, thereby ensuring the comfortable riding experience of passengers.

[0024] Reference Figure 1 and Figure 2 The bottom of the sound insulation board 8 is fixedly connected to a support plate 7. There are two support plates 7. The bottom of the support plate 7 is in close contact with the top of the shock absorption board 3. By setting the support plate 7, the stability and firmness between the sound insulation board 8 and the bottom plate 1 can be increased under the action of the support plate 7, and the loosening and displacement under the influence of external forces can be avoided.

[0025] Reference Figure 2 and Figure 4 A limiting rod 16 is provided between the two supporting plates 7 on opposite sides. There are several limiting rods 16. One end of the limiting rod 16 passes through the inner wall of the second connecting block 12, the first connecting block 11 and the reinforcing block 14 in sequence. A rivet 6 is provided on the opposite side of the two supporting plates 7 to cooperate with the limiting rod 16. There are several rivets 6. One end of the rivet 6 is fixedly connected to one end of the limiting rod 16. By setting the limiting rod 16 and the rivet 6 in cooperation, the stability and firmness between the sound insulation board 8 and the base plate 1 can be increased, so that the sound insulation board 8 is more firm and stable during use.

[0026] Reference Figure 4The inner walls of the support plate 7, the first connecting block 11, the second connecting block 12, and the reinforcing block 14 are all provided with mounting holes 13 for use with the limiting rod 16. There are several mounting holes 13. The inner cavity of the mounting hole 13 is in contact with the surface of the limiting rod 16. Three protective pads 15 are fixedly connected to the surface of the limiting rod 16. The surface of the protective pads 15 is in contact with the inner cavity of the mounting hole 13. By setting the mounting holes 13, the limiting rod 16 can be easily connected to the support plate 7, the first connecting block 11, and the second connecting block 12, which increases stability and firmness. By setting the protective pads 15, the sound generated by friction between the limiting rod 16 and the support plate 7, the first connecting block 11, and the second connecting block 12 can be reduced, thereby achieving the purpose of reducing noise generation.

[0027] Reference Figure 5 The top of the sound insulation panel 8 is fixedly connected to the base layer 10, and the top of the base layer 10 is fixedly connected to the sealing connection layer 9. The sealing connection layer 9 is made of sealant. By installing the sealing connection layer 9 on the top of the sound insulation panel 8, it is convenient to make tight connections with other objects while preventing noise from spreading through gaps, thereby further increasing the sound insulation effect of the sound insulation panel 8.

[0028] Reference Figure 5 A sound insulation layer 19 is fixedly connected to the top of the sealing connection layer 9. The sound insulation layer 19 is made of sound insulation cotton. By setting the sound insulation layer 19 to be made of sound insulation sponge, the sound insulation effect of the sound insulation layer 19 can be further increased. Moreover, the sound insulation sponge has excellent sound absorption performance, which can effectively absorb and isolate sound, reduce sound reflection and transmission, thereby improving the overall sound insulation performance of the sound insulation board 8.

[0029] Reference Figure 5 The top of the sound insulation layer 19 is fixedly connected to the sound absorption layer 20, which is made of composite polyether sponge. By setting the sound absorption layer 20 to be composite polyether sponge, sound can be further absorbed and its reflection can be reduced. Composite polyether sponge has the characteristics of high porosity and strong sound absorption performance, and can effectively absorb sound of different frequencies, thereby further enhancing the sound insulation effect of the sound insulation panel 8 and providing users with a quieter and more comfortable environment.

[0030] Working principle: When sound passes through the sound insulation panel 8, it first comes into contact with the sound insulation layer 19, which is made of sound-absorbing cotton. Its excellent sound absorption performance effectively absorbs and isolates most of the sound, reducing sound reflection and propagation. Subsequently, the sound that is not completely isolated continues to propagate to the sound-absorbing layer 20, which is made of composite polyether sponge. Its high porosity and strong sound absorption performance further absorb sound and effectively absorb sound at different frequencies. Through the combined action of the sound insulation layer 19 and the sound-absorbing layer 20, the sound insulation panel 8 significantly improves the sound insulation effect, providing a more comfortable listening experience for users. This provides a quieter and more comfortable environment. In addition, the fixed connection between the sound insulation panel 8 and the sound absorption layer 20 ensures the stability and durability of the entire structure, enabling the sound insulation panel 8 to maintain excellent sound insulation performance for a long time. In order to facilitate the installation of the sound insulation panel 8, the sound insulation panel 8 is first inserted into the slot 17 through the reinforcing block 14. Then, the limiting rod 16 is inserted into the first connecting block 11, the second connecting block 12, and the reinforcing block 14 through the mounting hole 13 in sequence. Then, the limiting rod 16 is fixed by the rivet 6, thereby increasing the stability and firmness between the sound insulation panel 8 and the base plate 1.

[0031] 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.

Claims

1. A nacelle soundproofing and damping structure comprising a floor (1), characterized in that: A rubber damping plate (3) is fixedly connected to the top of the base plate (1). A first limiting block (2) and a second limiting block (4) are fixedly connected to the inner wall of the rubber damping plate (3). There are two first limiting blocks (2) and two limiting blocks (4). A mounting frame (5) is fixedly connected to the top of the damping plate (3). There are four mounting frames (5). A honeycomb panel (18) is fixedly connected to the inner wall of the mounting frame (5). There are several honeycomb panels (18). The first limiting block (2) and the second limiting block (4) are fixedly connected to the inner wall of the mounting frame (5). A soundproof plate (8) is provided between the tops of the first limiting block (2) and the second limiting block (4). Two first connecting blocks (11) and three second connecting blocks (12) are fixedly connected to the tops of the first limiting block (2) and the second limiting block (4), respectively. A slot (17) is provided on the inner wall of the first connecting block (11). A reinforcing block (14) is fixedly connected to the bottom of the soundproof plate (8). There are two reinforcing blocks (14). The surface of the reinforcing block (14) is in contact with the inner cavity of the slot (17). The top of the second connecting block (12) is in close contact with the bottom of the soundproof plate (8).

2. The nacelle soundproofing and damping structure according to claim 1, characterized in that: The bottom of the sound insulation plate (8) is fixedly connected to a support plate (7), and there are two support plates (7). The bottom of the support plate (7) is in close contact with the top of the shock absorption plate (3).

3. The nacelle soundproofing and damping structure according to claim 2, characterized in that: A limiting rod (16) is provided between the two opposing sides of the two support plates (7). There are several limiting rods (16). One end of the limiting rod (16) passes through the inner wall of the second connecting block (12), the first connecting block (11), and the reinforcing block (14) in sequence. A rivet (6) is provided on the opposing side of the two support plates (7) to cooperate with the limiting rod (16). There are several rivets (6). One end of the rivet (6) is fixedly connected to one end of the limiting rod (16).

4. The cabin sound insulation and vibration reduction structure according to claim 3, characterized in that: The inner walls of the support plate (7), the first connecting block (11), the second connecting block (12) and the reinforcing block (14) are all provided with mounting holes (13) that cooperate with the limiting rod (16). There are several mounting holes (13). The inner cavity of the mounting hole (13) is in contact with the surface of the limiting rod (16). The surface of the limiting rod (16) is fixedly connected with a protective pad (15). There are three protective pads (15). The surface of the protective pad (15) is in contact with the inner cavity of the mounting hole (13).

5. The cabin sound insulation and vibration reduction structure according to claim 1, characterized in that: The top of the sound insulation panel (8) is fixedly connected to a base layer (10), and the top of the base layer (10) is fixedly connected to a sealing connection layer (9), which is made of sealant.

6. The cabin sound insulation and vibration reduction structure according to claim 5, characterized in that: A sound insulation layer (19) is fixedly connected to the top of the sealing connection layer (9), and the sound insulation layer (19) is made of sound insulation cotton.

7. The cabin sound insulation and vibration reduction structure according to claim 6, characterized in that: The top of the sound insulation layer (19) is fixedly connected to the sound absorption layer (20), which is made of composite polyether sponge.

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