Folding container house with soundproof structure

Abstract

The utility model relates to a kind of folding container house with sound-absorbing structure, including folding main body and the roof board being set to its top, the roof board includes the outer metal plate, intermediate damping layer and inner metal plate in turn;Multiple resonance unit cavities that are inwards protruding are arranged on the inner metal plate, and the top of each resonance unit cavity is opened with micro-hole, so that the resonance unit cavity constitutes independent Helmholtz resonator;The inner side of the inner metal plate is covered with non-woven fabric sound-absorbing layer.The utility model is provided with the integrated composite roof structure of no framework, has the advantages of convenient installation and folding, solve the problem that existing folding integrated house noise reduction roof structure is complex, heavy and low-frequency noise reduction effect is poor.The roof board efficiently absorbs low-frequency noise by internal resonance unit cavity, absorbs middle-high frequency noise by non-woven fabric sound-absorbing layer, realizes excellent broadband noise reduction effect, while simple structure, light in weight, very suitable for folding house use.

Description

Technical Field

[0001] This application relates to the field of container house technology, and in particular to a folding container house with a sound-absorbing structure. Background Technology

[0002] Foldable containers are easy to fold and store, and are widely used in infrastructure, homestays, temporary housing and other industries. They have the advantages of rapid construction and installation and easy transportation.

[0003] The metal roof of a folding container house suffers from significant noise from raindrops during rainy weather, severely impacting indoor comfort. Existing noise reduction solutions often involve adding a structure to the roof, including sound-absorbing cotton and a complex framework. These solutions primarily absorb sound through the viscous properties of porous materials, which is effective for mid-to-high frequency noise, but has minimal effect on absorbing the low-frequency components generated by raindrop impacts. This is because low-frequency sound waves have high energy and require resonant structures rather than viscous absorption to dissipate them. Therefore, existing technologies suffer from insufficient low-frequency noise reduction capabilities. Furthermore, the complex additional structures increase weight and cost, hindering folding. Therefore, there is an urgent need for an integrated roofing solution that can efficiently absorb low-frequency noise while maintaining a simple structure. Utility Model Content

[0004] Therefore, it is necessary to provide a folding container house with a sound-absorbing structure to overcome the defects mentioned in the background art.

[0005] A folding container house with a sound-absorbing structure includes a folding body and a roof panel on top of it. The roof panel includes an outer metal plate, a middle damping layer and an inner metal plate arranged in sequence. The inner metal plate is provided with a plurality of inwardly protruding resonant unit cavities. Each resonant unit cavity has a micropore on its top, so that the resonant unit cavity constitutes an independent Helmholtz resonator. The inner side of the inner metal plate is covered with a non-woven sound-absorbing layer.

[0006] As a preferred embodiment of the folding container house with a sound-absorbing structure in this utility model, the resonant unit cavities are arranged in a matrix-like uniform arrangement.

[0007] As a preferred embodiment of the folding container house with a sound-absorbing structure in this utility model, the intermediate damping layer is an asphalt damping film or a rubber layer.

[0008] As a preferred embodiment of the folding container house with a sound-absorbing structure in this utility model, the edge of the roof panel is provided with a folding sealing strip for sealing connection with the wall. The folding sealing strip has a cavity inside to accommodate the folding and unfolding of the house.

[0009] As a preferred embodiment of the folding container house with a sound-absorbing structure in this utility model, the outer surface of the outer metal plate is provided with a corrugated or convex impact-resistant structure.

[0010] As a preferred embodiment of the folding container house with a sound-absorbing structure in this utility model, the surface density of the non-woven sound-absorbing layer is 30-80 grams per square meter.

[0011] The beneficial effects of this utility model are: This invention features a frameless, integrated composite panel roof structure, offering advantages such as convenient installation and folding. It solves the problems of existing foldable integrated housing noise-reducing roof structures being complex, bulky, and having poor low-frequency noise reduction. The roof panel efficiently absorbs low-frequency noise through internal resonant unit cavities and absorbs mid-to-high-frequency noise through a non-woven fabric sound-absorbing layer, achieving excellent broadband noise reduction. Simultaneously, its simple structure and light weight make it ideal for use in foldable housing. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a structural schematic diagram of a folding container house according to an embodiment of this application; Figure 2 This is a cross-sectional schematic diagram of the roof panel according to an embodiment of this application; Figure 3 This is a partial enlarged cross-sectional view of the roof panel according to an embodiment of this application; Explanation of reference numerals in the attached figures: 1000, Folding main body; 2000, Roofing panel; 2100, Outer metal panel; 2200, Intermediate damping layer; 2300, Inner metal panel; 2400, Resonance unit cavity; 2500, Non-woven sound-absorbing layer; 2600, Impact-resistant structure. Detailed Implementation

[0014] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0015] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0016] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0017] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0018] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0019] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0020] According to one aspect of this application, embodiments of this application provide a folding container house with a sound-absorbing structure, please refer to [further details to be added]. Figure 1 and Figure 2 The folding container house with a sound-absorbing structure includes a folding body 1000 and a roof panel 2000 on top of it. The folding body 1000 typically includes a bottom plate, side wall panels and end wall panels that can be folded relative to each other, and a corresponding folding connection mechanism. In the unfolded state, each wall panel and the bottom plate are fixed by fasteners to form a stable container structure, providing the main load-bearing and enclosure functions for the house. The roof panel 2000 is fixedly installed on the top of the unfolded box, forming a complete enclosed space of the house. The roof panel 2000 is an integrated multi-layer composite structure without an internal frame, including an outer metal plate 2100 as a load-bearing layer, an intermediate damping layer 2200 for suppressing the vibration of the plate, and an inner metal plate 2300 as a sound-absorbing layer. Multiple inwardly protruding resonant unit cavities 2400 are regularly stamped on the inner metal plate 2300. Each resonant unit cavity 2400 has micropores on its top, so that the resonant unit cavity 2400 constitutes an independent Helmholtz resonator for targeted absorption of low-frequency noise. The inner side of the inner metal plate 2300 is covered with a non-woven sound-absorbing layer 2500 for absorbing mid-to-high frequency sound waves.

[0021] In one embodiment, the resonant unit cavities 2400 are arranged in a matrix-like uniform pattern to ensure aesthetics and performance consistency. To broaden the noise reduction frequency range, the resonant unit cavities 2400 can be designed with different cavity volumes and micropore diameters. For example, two specifications of resonant unit cavities 2400 can be designed: one with a shallower cavity and smaller micropores, used to absorb higher-frequency low-frequency noise; and the other with a deeper cavity and larger micropores, used to absorb lower-frequency low-frequency noise. These two specifications of resonant unit cavities 2400 work together to absorb low-frequency noise of different frequencies, achieving a more efficient broadband noise reduction effect.

[0022] In one embodiment, the intermediate damping layer 2200 is an asphalt damping film or a rubber layer, and other materials with similar damping and bonding properties may also be used.

[0023] In one embodiment, the edge of the roof panel 2000 is provided with a folding sealing strip for sealing connection with the wall. The folding sealing strip has a cavity inside to accommodate the folding and unfolding of the house. The folding sealing strip can be compressed when the house is folded and springs back to seal when unfolded, ensuring the airtightness of the house and adapting to folding requirements.

[0024] In one embodiment, the surface density of the nonwoven sound-absorbing layer 2500 is 30-80 g / m². This surface density ensures effective absorption of mid-to-high frequency noise while not excessively hindering the transmission of low-frequency sound waves to the resonant unit cavity 2400 behind it, thus balancing the operation of the two sound absorption mechanisms.

[0025] In one embodiment, the outer surface of the outer metal plate 2100 is provided with a corrugated or convex impact-resistant structure 2600, which can effectively disperse the impact energy of objects such as raindrops and hail, reduce the source of noise generation, and improve the durability and resistance to mechanical damage of the roof surface.

[0026] The working principle of this invention is as follows: When noise sources such as raindrops impact the roof, the broadband sound waves generated pass through the non-woven sound-absorbing layer 2500. A large amount of the mid-to-high frequency components are absorbed, while the low-frequency components are transmitted to the resonant cavity array behind it. The sound waves matching its inherent frequency excite specific resonant unit cavities 2400 to produce strong resonance, converting sound energy into heat energy and dissipating it. Ultimately, through this collaborative mechanism, efficient noise reduction across the entire frequency range from low to high frequencies is achieved.

[0027] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0028] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A folding container house with a sound-absorbing structure, comprising a folding body and a roof panel disposed on top of it, characterized in that: The roof panel includes an outer metal plate, a middle damping layer, and an inner metal plate arranged in sequence; the inner metal plate is provided with a plurality of inwardly protruding resonant unit cavities, and each resonant unit cavity has a micropore at the top, so that the resonant unit cavity constitutes an independent Helmholtz resonator; the inner side of the inner metal plate is covered with a non-woven sound-absorbing layer.

2. The folding container house with a sound-absorbing structure according to claim 1, characterized in that, The resonant unit cavities are arranged in a uniform matrix.

3. The folding container house with a sound-absorbing structure according to claim 1, characterized in that, The intermediate damping layer is an asphalt damping film or a rubber layer.

4. The folding container house with a sound-absorbing structure according to claim 1, characterized in that, The edge of the roof panel is provided with a folded sealing strip for sealing connection with the wall. The folded sealing strip has a cavity inside to accommodate the folding and unfolding of the house.

5. The folding container house with a sound-absorbing structure according to claim 1, characterized in that, The outer surface of the outer metal plate is provided with a corrugated or raised impact-resistant structure.

6. The folding container house with a sound-absorbing structure according to claim 1, characterized in that, The areal density of the nonwoven sound-absorbing layer is 30-80 grams per square meter.

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