Rock wool space sound absorber with composite structure

Abstract

The utility model discloses a rock wool space sound absorber with a composite structure, and belongs to the technical field of sound absorption structures, the rock wool space sound absorber with the composite structure is characterized by comprising an outer frame, and a composite sound absorption assembly is arranged in the outer frame. The interception structure reflects sound waves in a specific frequency band and converts part of sound energy into heat energy to be consumed according to the unique design of the interception structure and the reflection sound reduction principle, the high-frequency noise is remarkably weakened, the rock wool layer located in the outer frame gives full play to the porous sound absorption characteristic of the rock wool layer, sound shuttles among fiber pores of the rock wool layer, and the sound absorption effect is improved. Due to the effects of friction, viscosity and the like, a large amount of sound energy is converted and absorbed, the sound energy does not release any absorbable sound energy like a layer-by-layer filter screen, the sound energy and the sound energy supplement each other, and both high-frequency sharp noise and low-frequency dull roar can be effectively intercepted.

Description

TECHNICAL FIELD

[0001] The utility model relates to sound absorption structure technical field, especially in a kind of composite structure rock wool space sound absorption body. BACKGROUND

[0002] In many places needing to control noise, such as industrial plant, conference room, studio, etc., sound absorption material plays a key role, among them, rock wool as porous sound absorption material, with good sound absorption performance, it is made of natural minerals such as rock by high-temperature melting, fiberization and other processes, the fiber structure of rock wool forms a large number of small pores, when sound propagates in these pores, sound energy is converted into heat energy through friction and viscous effect, thereby realizing sound absorption effect.

[0003] Some sound absorption panels in prior art still have certain deficiencies in use, when using, it is inconvenient to assemble, and the sound absorption effect of sound absorption panel is relatively poor, which cannot meet people's needs.

[0004] The existing patent (announcement number: CN212836018U) discloses a multi-level space sound absorption body, which has better noise reduction and aesthetic appearance by setting the outer frame, the reinforcing framework inside the outer frame, the honeycomb sound absorption plate, the wave peak sound absorption sponge and the polyester fiber sound absorption plate.

[0005] For the above problems, the existing patent provides a solution, but the existing rock wool sound absorption material has certain sound absorption performance, but in some complex acoustic environment, its single structure and performance are difficult to meet the increasingly improved sound absorption requirements, for example, in the environment with large low-frequency noise, the sound absorption effect of ordinary rock wool sound absorption body is poor, which leads to unsatisfactory indoor acoustic environment, affects people's work and life comfort, and may adversely affect the normal operation of equipment.

[0006] Therefore, a composite structure rock wool space sound absorption body is provided. UTILITY MODEL CONTENT

[0007] The utility model aims at providing a composite structure rock wool space sound absorption body, which can solve the problem that the existing rock wool sound absorption material has certain sound absorption performance, but in some complex acoustic environment, its single structure and performance are difficult to meet the increasingly improved sound absorption requirements, for example, in the environment with large low-frequency noise, the sound absorption effect of ordinary rock wool sound absorption body is poor, which leads to unsatisfactory indoor acoustic environment, affects people's work and life comfort, and may adversely affect the normal operation of equipment.

[0008] To achieve the above object, the utility model provides the following technical scheme: a composite structure rock wool space sound absorption body, comprising an outer frame, a composite sound absorption assembly is arranged in the inner part of the outer frame, and a suspension structure is arranged on the top of the composite sound absorption assembly.

[0009] The composite sound absorption assembly comprises a rock wool layer arranged in the inner part of the outer frame, the top side and the bottom side of the inner part of the outer frame are provided with intercepting structures, the intercepting structures are located outside the rock wool layer, the top and the bottom of the outer frame are bolted with sealing plates, the top of the top sealing plate is bolted with the bottom of the suspension structure, the sealing plates are located outside the intercepting structures, the inner part of the intercepting structure is fixedly connected with a micro-perforated net, and the micro-perforated net is located outside the intercepting structure.

[0010] Preferably, the intercepting structure comprises an intercepting plate arranged outside the rock wool layer, the outer side of the intercepting plate is provided with a separation groove, and the separation groove is located inside the micro-perforated net.

[0011] Preferably, the two sides of the inner side of the separation groove are fixedly connected with return plates, the bottom side of the inner part of the separation groove is fixedly connected with a distribution plate, and the distribution plate is located at the bottom of the return plate.

[0012] Preferably, the outer side of the top of the distribution plate is provided with a flow port, and the flow port is located outside the rock wool layer.

[0013] Preferably, the suspension structure comprises suspension sleeves bolted on the two sides of the top of the top sealing plate, and the outer side of the suspension sleeve is provided with a hanging hole.

[0014] Preferably, the inner part of the hanging hole is provided with a hook, and the top of the hook is provided with a mounting hanging line.

[0015] Preferably, the four corners of the inner side of the rock wool layer are bonded with isolation blocks, and the isolation blocks are made of elastic cotton material.

[0016] Preferably, the inner side of the isolation block is bonded with a damping pad, and the damping pad is located inside the rock wool layer.

[0017] Compared with the prior art, the utility model has the advantages that:

[0018] 1、The composite sound absorption assembly is arranged, when the sound wave enters the intercepting structure through the micro-perforated net of the inner side of the sealing plate, the intercepting structure is designed according to the unique design, the reflection sound reduction principle is used, the sound wave of specific frequency band is reflected, part sound energy is converted into heat energy and is consumed, this has remarkable weakening effect to high frequency noise, and the rock wool layer in the inner part of the outer frame fully plays the porous sound absorption characteristic, sound shuttles between the fiber pores of the rock wool layer, a large amount of sound energy is converted and absorbed due to friction, adhesion and other effects, just like layer upon layer of filter screen, does not pass any absorbable sound energy, the two complement each other, whether high frequency sharp noise or low frequency dull roar can be effectively intercepted, the comprehensive sound absorption efficiency is greatly improved, the indoor acoustic environment is improved, and quiet and comfortable working and living space is created for people.

[0019] 2、The application can easily hang the composite sound absorption assembly and the outer frame to a suitable height and position according to the structural characteristics and acoustic requirements of different spaces in the actual acoustic environment optimization scene, and ensure smooth suspension in the air, and realize omnidirectional sound absorption coverage. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a whole structure diagram of the composite structure rock wool space sound absorption body of the utility model;

[0021] Figure 2 It is a structure diagram of the composite sound absorption assembly of the utility model;

[0022] Figure 3 It is a structure diagram of the interception structure of the utility model;

[0023] Figure 4 It is a structure diagram of the sealing plate of the utility model;

[0024] Figure 5 It is a structure diagram of the rock wool layer of the utility model.

[0025] In the figure, 1, outer frame; 2, composite sound absorption assembly; 201, rock wool layer; 202, interception structure; 2021, interception plate; 2022, separation groove; 2023, return plate; 2024, guide plate; 2025, flow-through opening; 203, sealing plate; 204, micro-perforated net; 3, suspension structure; 301, suspension sleeve; 302, hanging hole; 303, hook; 304, installation lifting line; 4, isolation block; 5, damping pad. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0027] Please refer to Figures 1-5 The utility model provides technical schemes:

[0028] A composite structure rock wool space sound absorption body, comprising an outer frame 1, the inside of the outer frame 1 is provided with a composite sound absorption assembly 2, and the top of the composite sound absorption assembly 2 is provided with a suspension structure 3.

[0029] The composite sound absorption assembly 2 comprises a rock wool layer 201 arranged in the outer frame 1, the top side and the bottom side of the inner side of the outer frame 1 are provided with intercepting structures 202, the intercepting structures 202 are located outside the rock wool layer 201, the top and the bottom of the outer frame 1 are bolted with sealing plates 203, the top of the top sealing plate 203 is bolted with the bottom of the suspension structure 3, the sealing plate 203 is located outside the intercepting structure 202, the inner side of the intercepting structure 202 is fixedly connected with a micro-perforated net 204, and the micro-perforated net 204 is located outside the intercepting structure 202.

[0030] In the embodiment: through the composite sound absorption assembly 2, when the sound wave propagates to the sound absorption body, it first touches the sealing plate 203, then the sound wave passes through the micro-perforated net 204 on the inner side of the sealing plate 203 to enter the intercepting structure 202, the micro-perforated net 204 preliminarily combs and disperses the sound wave by virtue of the fine perforated structure thereof, so that the sound wave can more uniformly enter the subsequent sound absorption link, the intercepting structure 202 utilizes the reflection sound reduction principle according to the unique design thereof, reflects the sound wave of a specific frequency band, and converts part of the sound energy into heat energy to be consumed, which has a significant weakening effect on high-frequency noise, and then the sound wave enters the rock wool layer 201 in the inner side of the outer frame 1, and the rock wool layer 201 fully plays its porous sound absorption characteristics; the sound wave shuttles between the fiber pores of the rock wool layer 201, a large amount of sound energy is converted and absorbed due to friction, adhesion and other effects, like layer upon layer of filter screens, and no absorbable sound energy is left, the two complement each other, whether it is high-frequency sharp noise or low-frequency dull booming, can be effectively intercepted, greatly improving the comprehensive sound absorption efficiency, and effectively improving the indoor acoustic environment, creating a quiet and comfortable working and living space for people, and meanwhile, through the suspension structure 3, in the actual acoustic environment optimization scene, the composite sound absorption assembly 2 and the outer frame 1 can be easily hoisted to a suitable height and position according to the structural characteristics and acoustic requirements of different spaces, and stable suspension in the air is ensured, full-range sound absorption coverage is realized, the sound absorption body can be flexibly adapted to various complex use scenes, and the acoustic advantages thereof are fully played.

[0031] Specifically, as shown in Figure 3 The intercepting structure 202 comprises an intercepting plate 2021 arranged outside the rock wool layer 201, and a separation groove 2022 is formed in the outer side of the intercepting plate 2021 and located inside the micro-perforated net 204.

[0032] Specifically, as shown in Figure 3 Both sides of the inner side of the separation groove 2022 are fixedly connected with return plates 2023, and the bottom side of the inner side of the separation groove 2022 is fixedly connected with a diversion plate 2024, and the diversion plate 2024 is located at the bottom of the return plate 2023.

[0033] Specifically, as shown in Figure 3As shown, the outer side of the top of the guide plate 2024 is provided with a flow port 2025, and the flow port 2025 is located on the outer side of the rock wool layer 201.

[0034] In the embodiment, when the sound wave impacts the intercepting plate 2021, the separation groove 2022 plays a key role, the return plate 2023 on the two sides of the inside of the separation groove 2022 can make the incident sound wave return multiple times, disrupt the original propagation rhythm of the sound wave, and make its energy gradually dispersed and consumed in the repeated return process, effectively reflecting and weakening the high-frequency sound wave. The guide plate 2024 at the bottom of the separation groove 2022 guides the sound wave to the flow port 2025 through the special inclination angle, and the flow port 2025 skillfully guides the sound wave that has been preliminarily processed to the rock wool layer 201, so that the rock wool layer 201 can accurately perform the next porous sound absorption treatment on the sound wave. The two closely cooperate to maximize the overall sound absorption performance and strengthen the management effect of different frequency bands of noise.

[0035] Specifically, as shown in the figure, Figure 4 The suspension structure 3 includes a suspension sleeve 301 bolted to the top of the two sides of the top sealing plate 203, and the suspension sleeve 301 is provided with a hanging hole 302 on the outer side.

[0036] Specifically, as shown in the figure, Figure 4 The hanging hole 302 is provided with a hook 303 inside, and the top of the hook 303 is provided with a mounting lifting line 304.

[0037] In the embodiment, the suspension sleeve 301 and the hanging hole 302 on the outer side thereof provide a convenient mounting point for the top sealing plate 203, and the combination of the hook 303 and the mounting lifting line 304 makes the top sealing plate 203 have high flexibility during actual installation. The user can easily hoist the composite sound absorption assembly 2 and the outer frame 1 to the desired height and position through the mounting lifting line 304 according to the height, layout and acoustic requirements of different spaces. The stable connection of the hanging hole 302 and the hook 303 ensures smooth suspension in the air, avoids additional noise or affects the sound absorption effect due to shaking, realizes omnidirectional sound absorption coverage without dead angle, meets various acoustic environment optimization scenarios, and greatly expands the application range of the product.

[0038] Specifically, as shown in the figure, Figure 5 The four corners of the inside of the rock wool layer 201 are adhered with isolation blocks 4, and the isolation blocks 4 are made of elastic cotton material.

[0039] Specifically, as shown in the figure, Figure 5 The inside of the isolation block 4 is adhered with a damping pad 5, and the damping pad 5 is located on the inside of the rock wool layer 201.

[0040] In the embodiment, by setting the isolation block 4 made of elastic cotton material and the inner damping pad 5, on the one hand, the isolation block 4 utilizes its elastic properties to play a buffering and shock-absorbing role when the rock wool layer 201 is subjected to slight external vibration or impact, preventing the rock wool layer 201 from becoming loose in structure and the sound absorption performance from decreasing due to excessive vibration, thereby ensuring the stability and durability of the rock wool layer 201. On the other hand, the damping pad 5, with its good damping properties, can effectively suppress the resonance phenomenon caused by sound wave vibration inside the rock wool layer 201, avoiding additional noise generation or deterioration of sound absorption effect caused by resonance. The two work together to continuously create a quiet and comfortable environment for people.

[0041] Working principle: In the process of using the composite structure rock wool space sound absorber, in the actual installation scene, the hanging sleeve 301 bolted on both sides of the top of the top sealing plate 203 and the hanging hole 302 opened outside provides a convenient mounting point for the top sealing plate 203. The combination of the hook 303 and the installation hanging line 304 makes the user easily hang the top sealing plate 203 and the outer frame 1 to the ideal height and position through the installation hanging line 304 according to the height, layout and acoustic requirements of different spaces. The stable connection of the hanging hole 302 and the hook 303 ensures smooth suspension in the air, avoiding additional noise or affecting the sound absorption effect due to shaking. When the sound wave propagates in the space, the sound wave will first touch the micro-perforated net 204 inside the sealing plate 203. The sound wave smoothly passes through the fine micro-perforated net 204 inside the sealing plate 203. The micro-perforated net 204 uses its numerous small perforations to preliminarily comb and disperse the chaotic sound wave, making the subsequent sound absorption process more efficient. Subsequently, the sound wave enters the interception structure 202. The interception plate 2021 in the interception structure 202 directly faces the sound wave impact. When the sound wave impacts the interception plate 2021, the separation groove 2022 located outside the interception plate 2021 begins to play a key role. The return plate 2023 on both sides of the inside of the separation groove 2022, like a sophisticated sound wave maze, can repeatedly return the incident sound wave, disrupting the original propagation rhythm of the sound wave, and gradually dispersing the energy of the high-frequency sound wave in the repeated return process, achieving effective reflection and weakening of the high-frequency sound wave. The split guide plate 2024 at the bottom of the separation groove 2022, with its special inclination angle, skillfully guides the sound wave after the return treatment to the flow-through port 2025. The flow-through port 2025 accurately guides these preliminarily processed sound waves to the rock wool layer 201, preparing for the sound absorption work of the rock wool layer 201. After receiving the sound wave from the flow-through port 2025, the rock wool layer 201 fully utilizes its porous sound absorption characteristics. The sound wave travels between the fiber pores of the rock wool layer 201. Due to friction, adhesion and other effects, a large amount of sound energy is converted and absorbed. No matter high-frequency or low-frequency noise, the rock wool layer 201 can effectively intercept it due to its structural advantages. At the same time, the isolation block 4 made of elastic cotton material inside the four corners of the rock wool layer 201 is always on standby. Once the rock wool layer 201 is slightly shaken or collided by external factors, the isolation block 4 utilizes its elastic properties to play a buffering and shock-absorbing role, preventing the rock wool layer 201 from becoming loose and reducing its sound absorption performance due to excessive vibration, ensuring the stability and durability of the rock wool layer 201. In addition, the damping pad 5 closely attached to the inside of the isolation block 4 effectively suppresses the resonance phenomenon inside the rock wool layer 201 caused by sound wave vibration, avoiding additional noise or deterioration of sound absorption effect caused by resonance.

[0042] The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application, and any modification, equivalent replacement, and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A composite structure rock wool space absorber comprising an outer frame (1), characterised in that: The inside of the outer frame (1) is provided with a composite sound absorption assembly (2), and the top of the composite sound absorption assembly (2) is provided with a hanging structure (3); The composite sound absorption assembly (2) comprises a rock wool layer (201) arranged in the inside of the outer frame (1), the top side and the bottom side of the inside of the outer frame (1) are provided with an intercepting structure (202), the intercepting structure (202) is located outside the rock wool layer (201), the top and the bottom of the outer frame (1) are bolted with an end plate (203), the top of the top end plate (203) is bolted with the bottom of the hanging structure (3), the end plate (203) is located outside the intercepting structure (202), the inside of the intercepting structure (202) is fixedly connected with a micro-perforated net (204), and the micro-perforated net (204) is located outside the intercepting structure (202).

2. A composite structure rock wool space absorber according to claim 1, characterized in that: The intercepting structure (202) comprises an intercepting plate (2021) arranged outside the rock wool layer (201), and a separation groove (2022) is formed in the outside of the intercepting plate (2021).

3. A composite structure rock wool space absorber according to claim 2, characterized in that: Both sides of the inside of the separation groove (2022) are fixedly connected with a turn-back plate (2023), and the bottom of the inside of the separation groove (2022) is fixedly connected with a distribution plate (2024).

4. A composite construction rock wool space absorber according to claim 3, characterised in that: The outside of the top of the distribution plate (2024) is provided with a flow port (2025), and the flow port (2025) is located outside the rock wool layer (201).

5. A composite structure rock wool space absorber according to claim 1, characterized in that: The hanging structure (3) comprises a hanging sleeve (301) bolted on both sides of the top of the top end plate (203), and a hanging hole (302) is formed in the outside of the hanging sleeve (301).

6. A composite construction rock wool space absorber according to claim 5, characterised in that: The inside of the hanging hole (302) is provided with a hook (303), and the top of the hook (303) is provided with a mounting hanging line (304).

7. A composite structure rock wool space absorber according to claim 1, characterized in that: The four corners of the inside of the rock wool layer (201) are bonded with isolation blocks (4) made of elastic cotton material.

8. A composite structure rock wool space absorber according to claim 7, characterized in that: The inside of the isolation block (4) is bonded with a damping pad (5), and the damping pad (5) is located inside the rock wool layer (201).

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