Profiles, combined profiles, frames, sound-absorbing hangings and hanging structures

Abstract

The present invention discloses a first frame profile, which includes a side panel and a support panel connected to each other, and a protruding connection portion is provided on the side panel. The present invention discloses a second frame profile, which includes a side panel and a support panel connected to each other, and a recessed matching portion is provided on the side panel. The present invention also discloses a combined profile, a frame, a sound-absorbing hanging picture and a hanging structure. The first frame profile and the second frame profile of the present invention can be connected to each other through the protruding connection portion and the recessed matching portion to achieve an assembly and combination of multiple frames, and the frames are narrow and more beautiful. The above-mentioned first frame profile and the second frame profile have the advantages of simple structure, good stability, and easy disassembly and assembly. The above-mentioned sound-absorbing hanging picture has the advantages of good sound absorption effect, long service life, and good fire and moisture-proof effects. The above-mentioned hanging structure has a simple structure, a small number of hangers, and is easy to install, which reduces the difficulty of installation for users.

Description

Technical Field

[0001] The present invention relates to the field of functional decorative materials, and in particular to a profile, a frame, a sound-absorbing hanging picture and a hanging structure. Background Art

[0002] At present, noise pollution has become another important source of pollution in our lives besides light pollution, water pollution and air pollution. For this reason, people have taken many measures to reduce noise pollution, including using sound-absorbing materials or installing other sound-absorbing devices when building houses. Among them, sound-absorbing paintings that serve as decorations in the interior and have sound-absorbing effects are very popular among people.

[0003] In larger indoor spaces, a single sound-absorbing painting is ineffective, so people often combine multiple sound-absorbing paintings to enhance the sound absorption effect. However, combining multiple sound-absorbing paintings is difficult, and the frames of these paintings are also too wide, resulting in a large frame area after the multiple paintings are assembled, which affects the appearance. In addition, each painting requires at least two hangers, so hanging multiple paintings on the wall requires a large number of hangers. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the existing technology and provide a profile, combined profile, frame, sound-absorbing hanging picture and hanging structure with simple structure, easy assembly and combination, excellent sound absorption effect and small number of hangers.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A first frame profile comprises a side plate and a support plate connected to each other, wherein the side plate is provided with a protruding connecting portion.

[0007] As a further improvement of the above technical solution:

[0008] The protruding connecting portion and the supporting plate are respectively arranged on both sides of the side plate.

[0009] The side plates and the support plates are arranged vertically, and both ends of the support plates extend toward a side away from the side plates to form fixing grooves.

[0010] A second frame profile comprises a side plate and a support plate connected to each other, wherein the side plate is provided with a recessed matching portion.

[0011] The recessed matching portion and the support plate are arranged on the same side of the side plate, and the opening direction of the recessed matching portion and the support plate are respectively located on two sides of the side plate.

[0012] As a further improvement of the above technical solution:

[0013] A combined profile comprises the first frame profile and the second frame profile, wherein the first frame profile and the second frame profile are connected to form a whole by mutual cooperation through the protruding connecting portion and the recessed matching portion.

[0014] A frame is mainly composed of the first frame profile and / or the second frame profile.

[0015] A sound-absorbing hanging painting comprises a sound-absorbing body and the above-mentioned frame, wherein the sound-absorbing body is installed in the frame and comprises a sound-absorbing body and sandstone protective layers arranged on the upper and lower surfaces of the sound-absorbing body.

[0016] As a further improvement of the above technical solution:

[0017] The sound absorbing body includes a glass fiber wool board layer and a glass fiber cloth layer. The glass fiber cloth layer is arranged on the lower surface of the glass fiber wool board layer, and the sandstone facing layer is arranged on the upper surface of the glass fiber wool board layer and the lower surface of the glass fiber cloth layer.

[0018] A hanging structure, the hanging structure includes a combined sound-absorbing hanging picture and a plurality of hanging brackets for fixing the combined sound-absorbing hanging picture to the wall, the combined sound-absorbing hanging picture is mainly composed of a bottom sound-absorbing hanging picture and an upper sound-absorbing hanging picture located above the bottom sound-absorbing hanging picture, which are spliced ​​and combined in sequence in the vertical direction, and at least one upper sound-absorbing hanging picture is provided; the bottom sound-absorbing hanging picture includes a bottom frame, the upper sound-absorbing hanging picture includes an upper frame, the upper part of the bottom frame is a first frame profile or a second frame profile, the lower part of the upper frame is a second frame profile or a first frame profile that matches the upper part of the bottom frame, the bottom sound-absorbing hanging picture and the upper sound-absorbing hanging picture are spliced ​​and combined with each other by the bottom frame and the upper frame; two hanging brackets are provided on the bottom sound-absorbing hanging picture, and one hanging bracket is provided on each of the upper sound-absorbing hanging pictures; the above-mentioned first frame profile is the first frame profile described above, and the above-mentioned second frame profile is the second frame profile described above.

[0019] As a further improvement of the above technical solution:

[0020] One of the two hangers on the bottom sound-absorbing hanging picture is arranged at the middle and upper part of the bottom sound-absorbing hanging picture, and the other is arranged at the middle and lower part of the bottom sound-absorbing hanging picture, and the center line connecting the two hangers is located on the vertical center line of the bottom sound-absorbing hanging picture.

[0021] The hanger of the upper sound-absorbing hanging picture is arranged at the upper middle part of the upper sound-absorbing hanging picture, and the hanger is arranged on the vertical center line of the upper sound-absorbing hanging picture.

[0022] The vertical center line of the bottom sound-absorbing hanging picture coincides with the vertical center line of the upper sound-absorbing hanging picture.

[0023] Compared with the prior art, the advantages of the present invention are:

[0024] 1. The side panels of the first frame profile and the second frame profile of the present invention are respectively provided with a raised connecting portion and a recessed matching portion. Through the mutual cooperation of the raised connecting portion and the recessed matching portion, the first frame profile and the second frame profile can be fixedly connected. After the first frame profile and the second frame profile form a frame, multiple frames can be assembled with each other through the raised connecting portion and the recessed matching portion, and the free assembly and combination of multiple sound-absorbing hanging paintings can be realized, thereby realizing large-area installation.

[0025] 2. The first and second frame profiles of the present invention are thin in thickness. When the frame is formed by them, the width of the frame is narrower, which saves space and is more beautiful. When multiple frames are spliced ​​together, the effect is more obvious.

[0026] 3. The first frame profile and the second frame profile of the present invention have simple structures and the constructed frame has good stability.

[0027] 4. The compressive strength of the sound-absorbing hanging painting of the present invention can reach 29.7MPa, the fire resistance grade is A2, and the sound absorption coefficient can reach 0.50-0.95. It has the advantages of good environmental protection, good water and acid and alkali resistance, no cracking of the finished surface, fire prevention, moisture resistance, environmental protection, aging resistance, wide absorption bandwidth and diffusion. Installing the sound-absorbing hanging painting in a space such as a venue can expand the sound absorption area inside the venue and increase the sound absorption volume of the venue, thereby effectively solving problems such as long reverberation time and severe echo.

[0028] 5. The hanging structure of the present invention has a simple structure, requires a small number of hangers, is easy to install, reduces the difficulty of installation for users, and is easy to assemble and combine multiple paintings and fix them on the wall. Especially when a large number of paintings need to be assembled and the hanging area is large, the advantages are more obvious. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a three-dimensional diagram of the first frame profile of the present invention.

[0030] Figure 2 It is a structural schematic diagram of the first frame profile of the present invention.

[0031] Figure 3 It is a three-dimensional diagram of the second frame profile of the present invention.

[0032] Figure 4 It is a structural schematic diagram of the second frame profile of the present invention.

[0033] Figure 5 It is a structural schematic diagram of the first frame profile and the second frame profile of the present invention in a connected state.

[0034] Figure 6 It is a front view of the frame of the present invention.

[0035] Figure 7 for Figure 6 Cross-section view at AA in the middle.

[0036] Figure 8 It is a rear view of the frame of the present invention (the raised connecting portion is not shown in the figure).

[0037] Figure 9 It is a structural schematic diagram of the sound-absorbing body of the present invention.

[0038] Figure 10 This is a structural diagram of the bottom sound-absorbing hanging picture and the hanging rack of the present invention in a connected state (equivalent to the case of a single sound-absorbing hanging picture).

[0039] Figure 11 It is a structural schematic diagram of the upper sound-absorbing hanging picture, the bottom sound-absorbing hanging picture and the hanging rack of the present invention in a connected state.

[0040] Legend:

[0041] 1. Side panels; 2. Support panels; 3. Raised connecting portion; 4. Fixing grooves; 5. Recessed fitting portion; 6. Sound-absorbing body; 61. Sandstone facing layer; 62. Fiberglass wool board layer; 63. Fiberglass cloth layer; 7. Hanging bracket; 8. Bottom sound-absorbing hanging picture; 9. Upper sound-absorbing hanging picture. DETAILED DESCRIPTION

[0042] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0043] like Figure 1 and Figure 2 As shown, the first frame profile of this embodiment includes a side panel 1 and a support panel 2 that are connected to each other, and a raised connecting portion 3 is provided on the side panel 1. After the first frame profile is assembled into a frame, the side panel 1 and the support panel 2 are respectively in contact with the surface of the installed object (such as the sound-absorbing body 6), and the object can be installed in the assembled frame. When the assembled frame needs to be connected to other frames, the raised connecting portion 3 of the frame is inserted into the recessed matching portion 5 of the frame connected to it to complete the connection between the two frames. Compared with the prior art, the first frame profile has a simple structure and good stability. In addition, the narrow frame assembled from the frame profile saves the occupied space and is more beautiful. When the frame profile is assembled with other frames, it is easy to install and disassemble.

[0044] like Figure 2As shown, in this embodiment, the raised connecting portion 3 and the support plate 2 are respectively provided on either side of the side panel 1. When assembling the frame profile, the support plate 2 and the side panel 1 abut against the object to be installed (such as the sound absorbing body 6). Since the raised connecting portion 3 is located on the other side of the side panel 1, the object will not interfere with the raised connecting portion 3, making it easier to install the object.

[0045] like Figure 2 As shown, in this embodiment, the side panels 1 and support panels 2 are arranged vertically, with both ends of the support panels 2 extending away from the side panels 1 to form fixing grooves 4. This arrangement increases the contact area between the side panels 1 and support panels 2 and the objects to be mounted, improving the stability of the objects during installation. When multiple profiles are assembled into a frame, the connectors connecting two adjacent profiles can be placed in the fixing grooves 4, reducing the probability of connector loss and ensuring that the back of the hanging picture in the suction room remains flush.

[0046] like Figure 3 and Figure 4 As shown, the second frame profile of this embodiment includes a side panel 1 and a support panel 2 connected to each other, and a recessed matching portion 5 is provided on the side panel 1, wherein the recessed matching portion 5 can be formed by a recess in the middle of the side panel 1, which facilitates the processing and production of the entire second frame profile. After the first frame profile is assembled into a frame, the side panel 1 and the support panel 2 are respectively abutted against the surface of the installed article (such as the sound-absorbing body 6), and the article can be installed in the composed frame. When the assembled frame needs to be connected to other frames, the recessed matching portion 5 of the frame is connected to the raised connecting portion 3 of the frame to which it is connected to complete the connection between the two frames. Compared with the prior art, the second frame profile has a simple structure and good stability. Moreover, the narrow frame assembled by the frame profile saves the occupied space and is more beautiful. When the frame profile is assembled with other frames, it is easy to install and disassemble.

[0047] like Figure 4 As shown, in this embodiment, the recessed mating portion 5 and the support plate 2 are located on the same side of the side panel 1, with the opening of the recessed mating portion 5 and the support plate 2 located on opposite sides of the side panel 1. Because the support plate 2 is located on the side where the item is to be installed, this arrangement conceals the recessed mating portion 5, reducing the chance of it interfering with other devices during installation. Furthermore, the placement of the opening of the recessed mating portion 5 and the support plate 2 on opposite sides of the side panel 1 facilitates installation of the profile, further enhancing its practicality.

[0048] like Figure 4As shown, in this embodiment, the side panels 1 and support panels 2 are arranged vertically, with both ends of the support panels 2 extending away from the side panels 1 to form fixing grooves 4. This arrangement increases the contact area between the side panels 1 and support panels 2 and the objects to be mounted, improving the stability of the objects during installation. When multiple profiles are assembled into a frame, the connectors connecting two adjacent profiles can be placed in the fixing grooves 4, reducing the probability of connector loss and ensuring that the back of the hanging picture remains flush.

[0049] like Figure 5 As shown, this embodiment also provides a combined profile, including the first frame profile and the second frame profile, which are connected to form a whole through the cooperation of the raised connecting portion 3 and the recessed matching portion 5. This connection method facilitates the user to assemble and disassemble the two adjacent profiles, shortens the connection time between the two profiles, and makes assembly and disassembly more convenient.

[0050] The length k of the raised connecting portion 3 is less than the opening length h of the recessed mating portion 5. When the length k of the raised connecting portion 3 matches the opening length h of the recessed mating portion 5, the tightness of the connection between the two must be ensured. This arrangement reduces the difficulty of removing the raised connecting portion 3 from the recessed mating portion 5 when disassembling the two frames.

[0051] like Figures 6 to 8 As shown, this embodiment also provides a frame, which is mainly composed of the above-mentioned first frame profile and / or second frame profile. The frame can be composed of different profiles in a free combination, such as: the frame can be made entirely of the first frame profile, or all of the second frame profile, or the first frame profile and the second frame profile can be combined with each other (such as Figure 5-8 As shown, a pair of side edges of the frame respectively adopt the first frame profile and the second frame profile, and the other pair of sides are not limited and are selected according to actual needs), or the first frame profile, the second frame profile and other ordinary profiles are used in combination. The specific scheme can be selected according to actual needs. This kind of frame enriches its structural diversity and further improves the scope of use of the frame.

[0052] like Figures 6 to 9As shown, this embodiment also provides a sound-absorbing hanging picture, including a sound-absorbing body 6 and the above-mentioned frame, wherein the sound-absorbing body 6 is installed in the frame, and the sound-absorbing body 6 includes a sound-absorbing body and a sandstone protective layer 61 provided on the upper and lower surfaces of the sound-absorbing body. The selection of the protective layer has a great influence on the sound absorption parameters of the spatial sound-absorbing hanging picture and the quality of the overall product. The sound-absorbing hanging picture provided in this embodiment has a sandstone protective layer 61 provided on both the upper and lower surfaces of the sound-absorbing body, forming a sandstone sound-absorbing layer with good sound absorption effect. The sound-absorbing hanging picture has a compressive strength of up to 29.7 MPa, a fire resistance grade of A2, and a sound absorption coefficient of up to 0.50-0.95. It has the advantages of good environmental protection, good water and acid and alkali resistance, no cracking of the finished surface, fire resistance, moisture resistance, environmental protection, aging resistance, wide absorption bandwidth and diffusion, etc. Installing the sound-absorbing hanging picture in a space such as a stadium can expand the sound absorption area inside the venue and increase the sound absorption volume of the venue, thereby effectively solving problems such as long reverberation time and severe echo.

[0053] like Figure 9 As shown, in this embodiment, the sound absorbing body comprises a fiberglass wool layer 62 and a fiberglass cloth layer 63. The fiberglass cloth layer 63 is disposed on the lower surface of the fiberglass wool layer 62, and the sandstone facing layer 61 is disposed on the upper surface of the fiberglass wool layer 62 and the lower surface of the fiberglass cloth layer 63. Because the fiberglass wool layer 62 and fiberglass cloth layer 63 inherently provide moisture-proofing, heat dissipation, thermal insulation, and noise reduction, covering the sound absorbing body 6 with two additional layers of sound-absorbing materials further enhances the sound absorption, moisture-proofing, heat dissipation, and thermal insulation capabilities of the sound absorbing module. In other embodiments, the entire outer surface of the sound absorbing body 6 can be covered with the fiberglass wool layer 62 and fiberglass cloth layer 63, i.e., covering the upper and lower surfaces and all four sides of the sound absorbing body 6.

[0054] In this embodiment, the sandstone protective layer 61 is sprayed with a sand coating. The sand particles form a hard skeleton, forming a porous sandstone protective layer 61. The sand coating has a grain size of 20-100 mesh, resulting in a specific flow resistance of 400 Pa·s / m-1200 Pa·s / m. Because the sandstone protective layer 61 has pores within it, and the pores vary in size and are interconnected, the air within the interconnected cavities becomes a whole, forming a resonant space layer. This resonant space layer can strongly rub against the hard skeleton to absorb sound. The sand particles are made of natural stone with polygonal and ridged surfaces. Once refracted, sound diffuses, with some being diffused and some being absorbed by the fiberglass wool board layer 62, thereby achieving effective noise reduction. Furthermore, the sand particles can be UV-printed to create different patterns for decorative purposes.

[0055] In this embodiment, the sand particles are primarily made of inorganic silicon dioxide, which possesses inherent physical and chemical properties. The core technology behind its production is silicon-based polymer, a novel silicon dioxide variant. By chemically bonding with the sand grains' surfaces, silicon-based polymers weld together adjacent grains into a rigid acoustic structure. Because gaps remain between the grains during this polymerization process, they create a porous structure with excellent sound absorption properties.

[0056] like Figure 10 and Figure 11 As shown, this embodiment also provides a hanging structure, which includes a combined sound-absorbing hanging picture and a plurality of hangers 7 for fixing the combined sound-absorbing hanging picture on the wall. The combined sound-absorbing hanging picture is mainly composed of a bottom sound-absorbing hanging picture 8 and an upper sound-absorbing hanging picture 9 located above the bottom sound-absorbing hanging picture 8, which are spliced ​​and combined in sequence in the vertical direction. At least one upper sound-absorbing hanging picture 9 is provided; the bottom sound-absorbing hanging picture 8 includes a bottom frame, and the upper sound-absorbing hanging picture 9 includes an upper frame. The upper part of the bottom frame is a first frame profile or a second frame profile, and the lower part of the upper frame is a second frame profile or a first frame profile that matches the upper part of the bottom frame. The bottom sound-absorbing hanging picture 8 and the upper sound-absorbing hanging picture 9 are spliced ​​and combined with each other by the bottom frame and the upper frame; two hangers 7 are provided on the bottom sound-absorbing hanging picture 8, and one hanger 7 is provided on each of the upper sound-absorbing hanging pictures 9; the above-mentioned first frame profile is the first frame profile described above, and the above-mentioned second frame profile is the second frame profile described above.

[0057] When the upper sound-absorbing hanging picture 9 and the bottom sound-absorbing hanging picture 8 are assembled, the lower part of the upper sound-absorbing hanging picture 9 is connected to the upper part of the bottom sound-absorbing hanging picture 8, and in this way, the number of hanging pictures is increased in the vertical direction according to demand. Since the lower part of the frame of the upper sound-absorbing hanging picture 9 is the first frame profile or the second frame profile, the upper part of the frame of the bottom sound-absorbing hanging picture 8 is also made of the first frame profile or the second frame profile, in order to ensure that the upper sound-absorbing hanging picture 9 and the bottom sound-absorbing hanging picture 8 can be assembled smoothly, when selecting materials, when the lower part of the frame of the upper sound-absorbing hanging picture 9 is the first frame profile, the upper part of the frame of the bottom sound-absorbing hanging picture 8 is made of the second frame profile; when the lower part of the frame of the upper sound-absorbing hanging picture 9 is the second frame profile, the upper part of the frame of the bottom sound-absorbing hanging picture 8 is made of the first frame profile, that is, the first frame profile and the second frame profile are corresponding.

[0058] When the splicing is completed, the hangers 7 on the paintings are hung on the matching fixings installed on the wall. The upper sound-absorbing paintings 9 installed above the bottom sound-absorbing paintings 8 correspond to the number of hangers 7 one to one, that is, only one hanger 7 is installed on one painting. Therefore, the number of hangers 7 is continuously adjusted according to the number of paintings, which reduces the difficulty of installing the spliced ​​paintings as a whole on the wall. Compared with the hanging structure in the prior art, at least two or more hangers 7 must be set on each painting to stably install the paintings on the wall. The hanging structure has a simple structure. On the basis of ensuring that the paintings are stably installed on the wall, the number of hangers 7 is reduced, thereby reducing the difficulty of installing the paintings.

[0059] like Figure 10 As shown, in this embodiment, one of the two hangers 7 on the bottom sound-absorbing hanging picture 8 is located in the upper-middle portion of the bottom sound-absorbing hanging picture 8, and the other is located in the lower-middle portion of the bottom sound-absorbing hanging picture 8, and the center line connecting the two hangers 7 is located on the vertical center line of the bottom sound-absorbing hanging picture 8. The two hangers 7 are respectively located at the upper and lower portions of the hanging picture, which provides multi-directional fixation for the hanging picture and ensures its stability when hung. Moreover, the center line connecting the two hangers 7 is located on the vertical center line of the hanging picture, further improving the stability of the hanging picture after it is mounted on the wall.

[0060] like Figure 11 As shown, in this embodiment, the hangers 7 for the upper sound-absorbing paintings 9 are arranged in the upper middle portion of the upper sound-absorbing paintings 9, and the hangers 7 are arranged on the vertical centerline of the upper sound-absorbing paintings 9. In this way, only a corresponding number of hangers 7 need to be provided according to the number of upper sound-absorbing paintings 9, that is, one hanger 7 is provided for each painting. After these paintings are spliced ​​and combined with the bottom sound-absorbing paintings 8, the spliced ​​whole can be mounted on the wall. This arrangement can greatly reduce the number of hangers 7 provided, reducing the difficulty of mounting the whole assembly composed of multiple paintings on the wall.

[0061] In this embodiment, the vertical center line of the bottom sound-absorbing hanging picture 8 coincides with the vertical center line of the upper sound-absorbing hanging picture 9. In this way, the bottom sound-absorbing hanging picture 8 and the upper sound-absorbing hanging picture 9 can better fit together after being spliced ​​together, thereby improving the overall stability of the spliced ​​combination.

[0062] The above is only a preferred embodiment of the present invention, and the scope of protection of the present invention is not limited to the above embodiment. For those skilled in the art, improvements and modifications obtained without departing from the technical concept of the present invention should also be considered as the scope of protection of the present invention.

Claims

1. A composite profile, characterized in that: The invention comprises a first frame profile and a second frame profile, wherein the first frame profile comprises a side panel (1) and a support panel (2) connected to each other, wherein a protruding connection portion (3) is provided on the side panel (1), and the protruding connection portion (3) and the support panel (2) are respectively arranged on both sides of the side panel (1); and the second frame profile comprises a side panel (1) and a support panel (2) connected to each other, wherein a recessed matching portion (5) is provided on the side panel (1), and the recessed matching portion (5) and the support panel (2) are arranged on the same side of the side panel (1), and the opening direction of the recessed matching portion (5) and the support panel (2) are respectively located on both sides of the side panel (1); The first frame profile and the second frame profile are connected to each other through the convex connecting portion (3) and the concave matching portion (5) to form a whole.

2. The composite profile according to claim 1, characterized in that: The side plate (1) and the support plate (2) are arranged vertically, and both ends of the support plate (2) extend toward a side away from the side plate (1) to form a fixing groove (4).

3. A frame, characterized in that: The invention mainly consists of a first frame profile and / or a second frame profile; the first frame profile comprises a side panel (1) and a support panel (2) connected to each other, the side panel (1) is provided with a protruding connection portion (3), and the protruding connection portion (3) and the support panel (2) are respectively arranged on both sides of the side panel (1); the second frame profile comprises a side panel (1) and a support panel (2) connected to each other, the side panel (1) is provided with a recessed matching portion (5), the recessed matching portion (5) and the support panel (2) are arranged on the same side of the side panel (1), and the opening direction of the recessed matching portion (5) and the support panel (2) are respectively located on both sides of the side panel (1).

4. The frame according to claim 3, characterized in that The side plate (1) and the support plate (2) are arranged vertically, and both ends of the support plate (2) extend toward a side away from the side plate (1) to form a fixing groove (4).

5. A sound-absorbing hanging painting, comprising a sound-absorbing body (6) and the frame according to claim 3 or 4, wherein the sound-absorbing body (6) is installed in the frame, and is characterized in that: The sound absorbing body (6) comprises a sound absorbing body and a sandstone protective layer (61) provided on the upper surface and the lower surface of the sound absorbing body. The sandstone protective layer (61) is sprayed with a sand grain coating, and the sand grain size of the sand grain coating is 20 mesh to 100 mesh.

6. The sound-absorbing hanging painting according to claim 5, characterized in that: The sound absorbing body comprises a glass fiber wool board layer (62) and a glass fiber cloth layer (63), wherein the glass fiber cloth layer (63) is arranged on the lower surface of the glass fiber wool board layer (62), and the sandstone facing layer (61) is arranged on the upper surface of the glass fiber wool board layer (62) and the lower surface of the glass fiber cloth layer (63).

7. A suspension structure, characterized in that: The hanging structure includes a combined sound-absorbing hanging picture and a plurality of hangers (7) for fixing the combined sound-absorbing hanging picture on the wall. The combined sound-absorbing hanging picture is mainly composed of a bottom sound-absorbing hanging picture (8) and an upper sound-absorbing hanging picture (9) located above the bottom sound-absorbing hanging picture (8), which are spliced ​​and assembled in sequence in the vertical direction. At least one upper sound-absorbing hanging picture (9) is provided. The bottom sound-absorbing hanging picture (8) includes a bottom frame, and the upper sound-absorbing hanging picture (9) includes an upper frame. The upper part of the bottom frame is a first frame profile or a second frame profile, and the lower part of the upper frame is a second frame profile or a first frame profile that matches the upper part of the bottom frame. The bottom sound-absorbing hanging picture (8) and the upper sound-absorbing hanging picture (9) are spliced ​​and assembled by the bottom frame and the upper frame. Two hangers (7) are provided on the bottom sound-absorbing hanging picture (8), and one hanger (7) is provided on each of the upper sound-absorbing hanging pictures (9). The first frame profile comprises a side panel (1) and a support panel (2) connected to each other, the side panel (1) being provided with a protruding connection portion (3), the protruding connection portion (3) and the support panel (2) being respectively arranged on both sides of the side panel (1); the second frame profile comprises a side panel (1) and a support panel (2) connected to each other, the side panel (1) being provided with a recessed matching portion (5), the recessed matching portion (5) and the support panel (2) being arranged on the same side of the side panel (1), and the opening direction of the recessed matching portion (5) and the support panel (2) being respectively located on both sides of the side panel (1); One of the two hangers (7) on the bottom sound-absorbing hanging picture (8) is arranged at the middle and upper part of the bottom sound-absorbing hanging picture (8), and the other is arranged at the middle and lower part of the bottom sound-absorbing hanging picture (8), and the center line connecting the two hangers (7) is located on the vertical center line of the bottom sound-absorbing hanging picture (8); The hanger (7) of the upper sound-absorbing hanging picture (9) is arranged in the upper middle part of the upper sound-absorbing hanging picture (9), and the hanger (7) is arranged on the vertical center line of the upper sound-absorbing hanging picture (9); The vertical center line of the bottom sound-absorbing hanging picture (8) coincides with the vertical center line of the upper sound-absorbing hanging picture (9).

8. The suspension structure according to claim 7, characterized in that: The side plate (1) and the support plate (2) are arranged vertically, and both ends of the support plate (2) extend toward a side away from the side plate (1) to form a fixing groove (4).

Images