CN219411374U

CN219411374U - Inhale sound insulation wall structure and assembled wall

Info

Publication number: CN219411374U
Application number: CN202320410770.8U
Authority: CN
Inventors: 曾少雁; 张赢; 叶炜; 薛榕; 张治忠
Original assignee: China Energy Engineering Group Guangdong Electric Power Design Institute Co Ltd
Current assignee: China Energy Engineering Group Guangdong Electric Power Design Institute Co Ltd
Priority date: 2023-03-06
Filing date: 2023-03-06
Publication date: 2023-07-25
Anticipated expiration: 2033-03-06

Abstract

The utility model discloses a sound absorption and insulation wall structure and an assembled wall body, comprising an outer steel plate and a plurality of outer keels which are fixedly connected to the inner side of the outer steel plate at intervals; the inner steel plates are arranged at intervals with the outer steel plates, and a plurality of inner keels are fixedly arranged at intervals on the outer sides of the inner steel plates; the inner keels and the outer keels are arranged at intervals inside and outside, and are arranged in a staggered mode up and down; the inner side of the inner steel plate is fixedly provided with a sound absorption material and a perforated plate in sequence; the edges of the inner steel plate and the edges of the outer steel plate are fixedly connected through a steel structure. The sound absorption and insulation wall structure and the assembled wall body integrally have higher sound absorption and insulation performance, correspond to a low-frequency relatively convex sound source in a factory building, and have good sound insulation effect.

Description

Inhale sound insulation wall structure and assembled wall

Technical Field

The utility model relates to the technical field of building sound insulation and noise reduction, in particular to a sound absorption and insulation wall structure and an assembled wall.

Background

In the field of noise control, a sound source device is placed in a building, and the noise reduction effect is achieved through the sound insulation performance of a wall body, a roof, a door and a window of the building, so that the noise reduction measure is commonly used. Because the wall body is the most main part of the building, the sound insulation amount of the wall body is the key part of the noise reduction measure.

The prior art wall sound insulation structure generally fixes a color-coated profiled steel sheet, a cement fiberboard, a sound absorption material and a profiled perforated plate on a steel structure keel, wherein a space for arranging the sound absorption material is reserved between the cement fiberboard and the profiled perforated plate. In the technical scheme, the steel structure keels are used as sound bridges, so that the overall sound insulation performance is reduced, and the sound insulation effect is poor for a low-frequency relatively-protruding sound source in a factory building.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides a sound absorption and insulation wall structure and an assembled wall.

In order to achieve the above object, the present utility model provides a sound absorbing and insulating wall structure, comprising:

the outer steel plates and a plurality of outer keels are fixedly connected to the inner sides of the outer steel plates at intervals;

the inner steel plates are arranged at intervals with the outer steel plates, and a plurality of inner keels are fixedly arranged at intervals on the outer sides of the inner steel plates;

the inner keels and the outer keels are arranged at intervals inside and outside, and are arranged in a staggered mode up and down;

the inner side of the inner steel plate is fixedly provided with a sound absorption material and a perforated plate in sequence;

the edges of the inner steel plate and the edges of the outer steel plate are fixedly connected through a steel structure.

Preferably, a plurality of said inner keels and a plurality of said outer keels are each arranged horizontally/vertically.

As the preferable scheme, the inner keels and the outer keels all comprise four rectangular panels which are fixedly connected in sequence, and the four panels enclose to form a cavity.

Preferably, the inner steel plate is in adhesive connection with the sound absorbing material, and the sound absorbing material is in adhesive connection with the outer steel plate.

As a preferable scheme, the outer keels are fixedly connected with the outer steel plates, and the inner keels are fixedly connected with the inner steel plates through bolts.

As a preferable scheme, the steel structure comprises section steel, and the section steel is fixedly connected with the inner steel plate and the section steel is fixedly connected with the outer steel plate through bolts.

The assembled wall body comprises at least two sound absorption and insulation wall bodies, wherein connecting members are arranged at the edges of each sound absorption and insulation wall body structure, and the adjacent connecting members of the sound absorption and insulation wall body structures are detachably and fixedly connected.

Preferably, the connecting member comprises a plurality of fastening bolts for connecting adjacent sound absorbing and insulating wall structures.

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

the sound absorption and insulation wall structure comprises a perforated plate, sound absorption materials, an inner steel plate, an inner keel, an outer keel and an outer steel plate which are sequentially arranged from inside to outside, wherein the inner keel and the outer keel are arranged at intervals inside and outside, and the inner keel and the outer keel are arranged in a staggered manner from top to bottom; the edge of the inner steel plate is fixedly connected with the edge of the outer steel plate through a steel structure.

The method utilizes the principle that the inner steel plates and the outer steel plates are arranged at intervals to form a cavity for sound insulation and are combined with sound insulation materials to form a double sound insulation structure, a plate-air-plate structure is formed, and an elastic system similar to a mass-spring-mass system is formed, so that the defect that a keel in the prior art is used as a sound bridge to cause sound penetration is avoided; when the frequency of external sound waves is consistent with the natural frequency of the elastic system, the structure can generate resonance, sound energy can easily pass through the double-layer plate to enable sound insulation to be reduced, the whole structure has higher sound absorption and sound insulation performance, and the sound insulation effect is good corresponding to a sound source with relatively convex low frequency in a factory building; according to the frequency spectrum characteristics of the sound source, air layers of cavities with different thicknesses can be arranged, so that the natural frequency of the structure is changed, the main frequency of sound waves is avoided, the sound insulation performance of the structure is improved, and higher additional sound insulation quantity of the air layers is obtained.

Drawings

Fig. 1 is a schematic view of the installation position of the sound absorbing and insulating wall structure.

In the figure, 1, an outer steel plate, 2, an outer keel, 3, a bolt, 4, a cavity, 5, an inner keel, 6, a perforated plate, 7, a sound absorbing material, 8 and an inner steel plate.

Detailed Description

The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "top", "bottom", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. It should be understood that the terms "first," "second," and the like are used herein to describe various information, but such information should not be limited to these terms, which are used merely to distinguish one type of information from another. For example, a "first" message may also be referred to as a "second" message, and similarly, a "second" message may also be referred to as a "first" message, without departing from the scope of the utility model.

The preferred embodiment of the sound absorption and insulation wall structure disclosed by the utility model is shown in a specific reference to fig. 1, and comprises an outer steel plate and a plurality of outer keels fixedly connected to the inner side of the outer steel plate at intervals; the inner steel plates and the outer steel plates are arranged at intervals, and a plurality of inner keels are fixedly arranged at intervals on the outer sides of the inner steel plates; the inner keels and the outer keels are arranged at intervals inside and outside, the inner keels and the outer keels are arranged in a staggered mode from top to bottom, cavity sound insulation is formed by the interval arrangement of the inner steel plates and the outer steel plates, and the cavity sound insulation is combined with sound insulation materials to form a double sound insulation structure, so that a plate-air-plate structure is formed; the inner side of the inner steel plate is fixedly provided with a sound absorption material and a perforated plate in sequence; the edge of the inner steel plate is fixedly connected with the edge of the outer steel plate through a steel structure. When sound waves are projected onto the inner steel plate, part of sound energy is reflected, part of sound energy is lost in the inner steel plate, part of sound energy is transmitted into the cavities of the inner steel plate and the outer steel plate, and the sound waves transmitted into the air layer of the cavity are attenuated by air and then projected onto the outer steel plate; also, the sound wave projected onto the outer steel plate is partially reflected and partially lost in the outer steel plate, so that the wall structure of the present application obtains performance higher than that of the inner steel plate and the sound insulation amount for the steel plate.

The dislocation set about interior fossil fragments and the outer fossil fragments in this application, splice position are the weak point of sound insulation, and this kind of mode reducible splice position leaks the influence of sound to whole sound insulation effect.

In one embodiment of the present application, the outer steel sheet is a color coated profiled steel sheet; the sound absorbing material may be glass wool or the like.

Wherein, a plurality of inner keels and a plurality of outer keels are all arranged in parallel; in the specific embodiment of the application, the inner keels and the outer keels are horizontally/vertically arranged to form a mutually staggered structure, so that on one hand, the width of the cavity can be increased, and the reduction of the size of the cavity caused by the relative arrangement of the inner keels and the outer keels is avoided; on the other hand, the wall body structure of the wall body structure has more uniform stress structure, and the stress stability of the wall body is improved.

In one embodiment of the present application, the inner and outer keels each comprise four panels in a rectangular shape fixedly connected in sequence, four of the panels enclosing to form a cavity. On the one hand, the requirement of the keel for increasing the strength is met, and on the other hand, the cavity is arranged to lighten the importance of the keel, so that the assembled transportation and installation of the wall structure are facilitated.

The inner steel plate is in adhesive connection with the sound absorbing material, the sound absorbing material is in adhesive connection with the outer steel plate, and the outer keels and the outer steel plate and the inner keels and the inner steel plate are fixedly connected through bolts; the two bonding processes can be automatically completed in a factory through special equipment. After the perforated plate, the sound absorbing material and the inner steel plate are integrally bonded, the stress structure of the perforated plate is changed from a single-layer thin plate into a three-layer integral composite plate with a certain thickness, the capability of bearing external load is greatly enhanced, and deformation caused by the influence of factors such as tightness, spacing and the like of fixing pieces (self-tapping screws and the like) such as bolts is very small. In addition, the inner steel plate and the sound absorbing material are bonded, so that the damping of the inner steel plate can be increased, the vibration of the inner steel plate under sound waves can be hindered, more sound energy is converted into heat energy, the sound insulation amount of the steel plate is improved, and the integral sound insulation effect is further improved.

The wall body of this application is equipped with independent inside and outside two sets of steel construction fossil fragments, outer steel sheet passes through the mounting and installs in outer fossil fragments, steel sheet, sound absorbing material and perforated plate pass through the mounting and install in inboard steel construction fossil fragments, interior fossil fragments and outer fossil fragments do not have rigid connection, the vibration that the sound wave was aroused on the steel sheet can not directly transmit for interior steel sheet, can only transmit interior steel sheet through the air bed, and the air bed has very big elastic deformation again, the vibration energy propagation between steel sheet and the color coating profiled steel sheet has been attenuated, avoid steel construction fossil fragments to become the sound bridge and reduce holistic sound insulation performance.

Specifically, the steel structure of this application includes shaped steel, all passes through bolt fixed connection between shaped steel and the interior steel sheet, between shaped steel and the outer steel sheet.

The sound absorption and insulation cavity structure has a sound absorption and insulation wall structure with higher sound insulation capacity, and the sound insulation performance of the wall can be improved on the basis of not remarkably increasing the construction cost of the wall; after only the steel structure keels are installed in site construction, the color-coated profiled steel sheets and the composite boards processed in factories are installed on the steel structure keels, so that the difficulty of site construction is reduced, and the time of site construction is shortened; after the sound absorption and insulation wall body is installed, the inner surface is flat.

The embodiment of the assembled wall body comprises at least two sound absorption and insulation wall bodies, wherein the edges of each sound absorption and insulation wall body are provided with connecting members, and the connecting members of adjacent sound absorption and insulation wall bodies are detachably and fixedly connected.

Further, the connecting member in the embodiments of the present application includes a plurality of fastening bolts for connecting adjacent sound absorbing and insulating wall structures.

The inner and outer layers of independent steel structure keels avoid forming a sound bridge to reduce the overall sound insulation performance; different air layer thicknesses may be set according to the spectral characteristics of the sound source. The inner steel plate, the outer steel plate, the sound absorbing material and the perforated plate are processed into an integral composite plate in a factory and then installed as a whole on site.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present utility model, and these modifications and substitutions should also be considered as being within the scope of the present utility model.

Claims

1. The utility model provides a inhale sound insulation wall structure which characterized in that includes:

2. The sound absorbing and insulating wall structure of claim 1, wherein a plurality of said inner keels and a plurality of said outer keels are each disposed horizontally/vertically.

3. The sound absorbing and insulating wall structure of claim 1, wherein said inner and outer keels each comprise four rectangular panels fixedly connected in sequence, four of said panels enclosing to form a cavity.

4. The sound absorbing and insulating wall structure of claim 1, wherein said inner steel sheet is adhesively attached to said sound absorbing material and said sound absorbing material is adhesively attached to said outer steel sheet.

5. The sound absorbing and insulating wall structure of claim 4, wherein the outer keel and the outer steel plate and the inner keel and the inner steel plate are fixedly connected through bolts.

6. The sound absorbing and insulating wall structure of claim 1, wherein the steel structure comprises a section steel, and the section steel is fixedly connected with the inner steel plate and the section steel is fixedly connected with the outer steel plate through bolts.

7. An assembled wall body is characterized by comprising the sound absorption and insulation wall body structures according to any of claims 1-6, wherein at least two sound absorption and insulation wall body structures are arranged, connecting members are arranged at the edges of each sound absorption and insulation wall body structure, and the connecting members of adjacent sound absorption and insulation wall body structures are detachably and fixedly connected.

8. The fabricated wall of claim 7, wherein the connecting member includes a plurality of fastening bolts for connecting adjacent ones of the sound absorbing and insulating wall structures.