CN219564372U - Double-layer damping composite sound insulation board - Google Patents

Abstract

The utility model discloses a double-layer damping composite sound-insulating plate which comprises a damping sound-insulating layer A, a damping sound-insulating layer B, a reflecting sound-insulating layer and two metal plate layers, wherein the damping sound-insulating layer A and the damping sound-insulating layer B are respectively arranged on the inner sides of the two metal plate layers, and the damping sound-insulating layer A and the damping sound-insulating layer B are formed by up-down composite synthesis of a rubber damping layer and a particle damping vibration-absorbing layer; a cavity is arranged between the damping sound insulation layer A and the damping sound insulation layer B, the reflecting sound insulation layer is arranged in the cavity, the reflecting sound insulation layer is provided with a bottom support, a top support, a framework and a reflecting plate, the bottom support and the top support are consistent in structure, the bottom support is fixed on two sides of the particle damping vibration reduction layer of the damping sound insulation layer A, and the top support is provided with a plurality of groups and is welded at the upper end of the bottom support at intervals. The utility model integrally adopts a sandwich composite structure, and is composed of a plurality of materials, so that the trough of a single material can be avoided, and the sound insulation performance of the material can be better improved.

Description

Double-layer damping composite sound insulation board

Technical Field

The utility model relates to the field of mechanical equipment sound insulation, in particular to a double-layer damping composite sound insulation board.

Background

In general, a large amount of industrial equipment is arranged in a factory, and the equipment always emits huge noise, and the noise of the mechanical equipment is usually high in sound pressure level, wide in frequency band and prominent in low-frequency noise, so that not only is the influence on the interior of the factory great, but also households around the factory area of the factory are influenced, the households complain about the factory area of the factory great in noise, and the noise insulation amount of the common sound insulation cover is difficult to process the mechanical equipment with high noise, and especially the influence of low-frequency noise is very difficult.

Along with the large-scale application of the high-molecular damping plate, a low-frequency noise insulation plate and a noise insulation cover which are compounded by multiple materials appear in the prior art, and the high-molecular damping plate is formed by adopting a sound insulation and sound absorption composite noise reduction material as shown in application number CN201920216676.2, and has good noise reduction performance on noise within the range of 50Hz-20 kHz. But in actual use, the double-layer damping composite sound insulation plate structure only has the effect of slightly reducing noise, and cannot effectively inhibit the noise, so that the sound insulation of mechanical equipment is further solved.

Disclosure of Invention

The utility model aims to provide a double-layer damping composite sound insulation board so as to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the double-layer damping composite sound-insulating plate comprises a damping sound-insulating layer A, a damping sound-insulating layer B, a reflecting sound-insulating layer and two metal plate layers, wherein the damping sound-insulating layer A and the damping sound-insulating layer B are respectively arranged on the inner sides of the two metal plate layers, and are formed by up-and-down composite synthesis of a rubber damping layer and a particle damping vibration-damping layer; a cavity is arranged between the damping sound insulation layer A and the damping sound insulation layer B, the reflecting sound insulation layer is arranged in the cavity, the reflecting sound insulation layer is provided with a bottom support, a top support, a framework and a reflecting plate, the bottom support and the top support are consistent in structure, the bottom support is fixed on two sides of the particle damping vibration reduction layer of the damping sound insulation layer A, the top support is provided with a plurality of groups and is welded at the upper end of the bottom support at intervals, and the top of the top support is connected with the particle damping vibration reduction layer of the damping sound insulation layer B.

Preferably, the bottom bracket and the top bracket are three-dimensional brackets with triangular side sections, a plurality of triangular frameworks are integrally formed on two sides and the top of the bottom bracket and the top bracket, and a reflecting plate is fixed on the frameworks, and the reflecting plates, the frameworks, the bottom bracket and the top bracket form a three-dimensional reflecting sound insulation layer.

Preferably, the reflective plate is provided with moire patterns for improving the reflective effect.

Preferably, the metal plate layers are cold-rolled galvanized steel plates, the inner sides of the two metal plate layers are respectively provided with a plurality of positioning columns extending into the rubber damping layer, and the outer sides of the two metal plate layers are coated with 0.2-0.5 mm wear-resistant coating layers.

Preferably, a plurality of groups of foam aluminum sound absorption blocks are further arranged in the cavity, and the plurality of groups of foam aluminum sound absorption blocks are distributed on two sides of the top support.

Compared with the prior art, the utility model has the beneficial effects that:

1. the double-layer damping composite sound insulation plate structure mainly comprises a metal plate, a damping layer A, a reflecting sound insulation layer and a damping layer B, wherein the whole structure is a sandwich composite structure, and the double-layer damping composite sound insulation plate structure is made of various materials, so that trough of a single material can be avoided, and sound insulation performance of the material can be improved better; the damping layer can be compounded by adopting different rubber materials according to different mechanical equipment frequency characteristics and using temperature requirements so as to widen the working frequency and the applicable temperature range.

2. The utility model adopts the three-dimensional reflective sound insulation layer formed by the plurality of reflecting plates, the framework, the bottom bracket and the top bracket, can reflect partial noise based on the reflective sound insulation layer, and absorbs the partial noise through the foam aluminum sound absorption block, thereby further improving the overall sound insulation effect.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the structure of the utility model after the foamed aluminum sound absorbing block is added;

FIG. 3 is a schematic view of the reflective bottom support of the present utility model.

In the figure: 1. a metal plate layer; 2. damping sound insulation layer A; 3. damping sound insulation layer B; 4. a reflective acoustic layer; 401. a bottom bracket; 402. a top bracket; 403. a skeleton; 404. a reflection plate; 405. foamed aluminum sound absorption block.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to fig. 1-3, the present utility model provides a technical solution: the double-layer damping composite sound-insulating plate comprises a damping sound-insulating layer A2, a damping sound-insulating layer B3, a reflecting sound-insulating layer 4 and two metal plate layers 1, wherein the damping sound-insulating layer A2 and the damping sound-insulating layer B3 are respectively arranged on the inner sides of the two metal plate layers 1, and the damping sound-insulating layer A2 and the damping sound-insulating layer B3 are formed by compounding a rubber damping layer and a particle damping vibration-absorbing layer up and down; a cavity is arranged between the damping sound insulation layer A2 and the damping sound insulation layer B3, the reflecting sound insulation layer 4 is arranged in the cavity, the reflecting sound insulation layer 4 is provided with a bottom support 401, a top support 402, a framework 403 and a reflecting plate 404, the bottom support 401 and the top support 402 are identical in structure, the bottom support 401 is fixed on two sides of the particle damping vibration reduction layer of the damping sound insulation layer A2, the top support 402 is provided with a plurality of groups and is welded at the upper end of the bottom support 401 at intervals, and the top of the top support 402 is connected with the particle damping vibration reduction layer of the damping sound insulation layer B3.

In this embodiment, the bottom bracket 401 and the top bracket 402 are three-dimensional brackets with triangular side sections, a plurality of triangular frameworks 403 are uniformly formed on both sides and the top of the bottom bracket 401 and the top bracket 402, a reflecting plate 404 is fixed on the frameworks 403, and a three-dimensional reflective sound insulation layer 4 is formed by the reflecting plates 404, the frameworks 403, the bottom bracket 401 and the top bracket 402.

In this embodiment, the reflection plate 404 is provided with a moire for improving the reflection effect.

In the embodiment, the metal plate layers 1 are cold-rolled galvanized steel plates, the inner sides of the two metal plate layers 1 are respectively provided with a plurality of positioning columns extending into the rubber damping layer, and the outer sides of the two metal plate layers 1 are coated with 0.2-0.5 mm wear-resistant covering layers.

In this embodiment, a plurality of groups of foamed aluminum sound absorbing blocks 405 are further disposed in the cavity, and the plurality of groups of foamed aluminum sound absorbing blocks 405 are distributed on two sides of the top bracket 402.

In the embodiment, the double-layer damping composite sound insulation plate structure mainly comprises a metal plate, a damping layer A, a reflecting sound insulation layer 4, a damping layer B and a metal plate, the whole structure is of a sandwich composite structure, and the structure is made of multiple materials, so that trough of a single material can be avoided, and sound insulation performance of the material can be improved better; the damping layer can be compounded by adopting different rubber materials according to different mechanical equipment frequency characteristics and using temperature requirements so as to widen the working frequency and the applicable temperature range.

In this embodiment, the three-dimensional reflective sound insulation layer 4 formed by the plurality of reflective plates 404, the framework 403, the bottom bracket 401 and the top bracket 402 is adopted, so that part of noise can be reflected based on the reflective sound insulation layer 4 and absorbed by the foamed aluminum sound absorption block 405, and the overall sound insulation effect is further improved.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The double-layer damping composite sound-insulating plate is characterized by comprising a damping sound-insulating layer A (2), a damping sound-insulating layer B (3), a reflecting sound-insulating layer (4) and two metal plate layers (1), wherein the damping sound-insulating layer A (2) and the damping sound-insulating layer B (3) are respectively arranged on the inner sides of the two metal plate layers (1), and the damping sound-insulating layer A (2) and the damping sound-insulating layer B (3) are formed by compounding a rubber damping layer and a particle damping vibration-damping layer up and down; a cavity is arranged between the damping sound insulation layer A (2) and the damping sound insulation layer B (3), the reflecting sound insulation layer (4) is arranged in the cavity, the reflecting sound insulation layer (4) is provided with a bottom support (401), a top support (402), a framework (403) and a reflecting plate (404), the bottom support (401) and the top support (402) are identical in structure, the bottom support (401) is fixed on two sides of the particle damping vibration reduction layer of the damping sound insulation layer A (2), the top support (402) is provided with a plurality of groups and is welded at the upper end of the bottom support (401) at intervals, and the top of the top support (402) is connected with the particle damping vibration reduction layer of the damping sound insulation layer B (3).

2. The double-layer damping composite sound insulation board according to claim 1, wherein: the bottom support (401) and the top support (402) are three-dimensional supports with triangular side sections, a plurality of triangular frameworks (403) are uniformly formed on two sides and the top of the bottom support (401) and the top support (402), a reflecting plate (404) is fixed on the frameworks (403), and a three-dimensional reflecting sound insulation layer (4) is formed by the reflecting plates (404), the frameworks (403), the bottom support (401) and the top support (402).

3. The double-layer damping composite sound insulation board according to claim 1, wherein: the reflecting plate (404) is provided with wave patterns for improving the reflecting effect.

4. The double-layer damping composite sound insulation board according to claim 1, wherein: the two metal plate layers (1) are cold-rolled galvanized steel plates, the inner sides of the two metal plate layers (1) are respectively provided with a plurality of positioning columns extending into the rubber damping layer, and the outer sides of the two metal plate layers (1) are coated with 0.2-0.5 mm wear-resistant coating layers.

5. The double-layer damping composite sound insulation board according to claim 1, wherein: and a plurality of groups of foam aluminum sound absorption blocks (405) are further arranged in the cavity, and the plurality of groups of foam aluminum sound absorption blocks (405) are distributed on two sides of the top bracket (402).